"Skyrmion Qubits: A New Class of Quantum Logic Elements Based on Nanoscale Magnetization".Physical Review Letters 127 067201, 2021.
"Magnetic Skyrmions and their Applications".Woodhead Publishing, Elsevier, 2021.
"Colossal topological Hall effect at the transition between isolated and lattice-phase interfacial skyrmions".Nature Communications 12, 2758, 2021.
"Current-Induced Spin Torques on Single GdFeCo Magnetic Layers".Adv. Mater. 33, 2007047, 2021.
"A perpendicular field electromagnet with a 250 mm access bore".Rev. Sci. Instrum. 92, 015102, 2021.
"Microwave resonances of magnetic skyrmions in thin film multilayers".Nature Communications 12, 1909, 2021.
"Skyrmion-(Anti)Vortex Coupling in a Chiral Magnet-Superconductor Heterostructure".Physical Review Letters 126, 117205, 2021.
"Magnetization reversal signatures of hybrid and pure Néel skyrmions in thin film multilayers".APL Materials 8, 111112, 2020.
"An ultra-high-vacuum rotating sample manipulator with cryogenic cooling".Rev. Sci. Instrum. 91, 116104, 2020.
"Physical foundations and basic properties of magnetic skyrmions".Nature Review Physics, 2020.
"Tailoring magnetic order via atomically stacking 3d/5d electrons to achieve high-performance spintronic devices".Applied Physics Reviews 7, 011401, 2020.
"The emergence of magnetic skyrmions".Physics Today 73, 3, 44, 2020.
"Angle-resolved broadband ferromagnetic resonance apparatus enabled through a spring-loaded sample mounting manipulator".Rev. Sci. Instr. 90, 076103, 2019.
"Quadratic to linear magnetoresistance tuning in TmB4".Phys. Rev. B 99, 045119, 2019.
"Stabilizing zero-field skyrmions in Ir/Fe/Co/Pt thin film multilayers by magnetic history control".Applied Physics Letters 114, 072401 , 2019.
"Geometrically Tailored Skyrmions at Zero Magnetic Field in Multilayered Nanostructures".Phys. Rev. Applied 11, 024064, 2019.
"The evolution of skyrmions in Ir/Fe/Co/Pt multilayers and their topological Hall signature".Nature Communications, 2019.
"Whirling spins with a ferroelectric".Nature Materials, 2018, 2018.
"Degeneracy of the 1/8 plateau and antiferromagnetic phases in the Shastry-Sutherland magnet TmB4".Physical Review Letters, 121, 167203, 2018.
"Dimensional crossover in the quasi-one-dimensional superconductor Tl(2)Mo(6)Se(6)".Physical Review B 98, 054507, 2018.
"Stray field signatures of Néel textured skyrmions in Ir/Fe/Co/Pt multilayer films".Appl. Phys. Lett. 112, 192403, 2018.
"Pressure-tuned superconductivity and normal-state behavior in Ba(Fe1-xCox)2As2 near the antiferromagnetic boundary".Phys. Rev. B 97, 144515, 2018.
"Tunable magnetization relaxation of Fe(2)Cr(1−x)Co(x)Si half-metallic Heusler alloys by band structure engineering".Physical Review Materials, 2017.
"Surface region enhanced superconductivity in high-Tc cuprates".Phys. Rev. B 95, 054516, 2017.
"Magnetization dynamics in thin CoFeB films".Proc Natl Acad Sci, 613864114, 2017.
"Insulator to metal transition in WO3 induced by electrolyte gating".npj Quantum Materials , 2017.
"Tunable room-temperature magnetic skyrmions in Ir/Fe/Co/Pt multilayers".Nature Materials, 2017.
"4-spin plaquette singlet state in the Shastry–Sutherland compound SrCu2(BO3)2".Nature Physics , 2017.
"A broadband ferromagnetic resonance dipper probe for magnetic damping measurements from 4.2 K to 300 K".Rev. Sci. Instruments 87, 043110 (2016), 2016.
"Reentrant Phase Coherence in Superconducting Nanowire Composites".ACS Nano 10 (1), pp 515–523, 2016.
"Multiple broken symmetries in striped La2−xBaxCuO4 detected by the field-symmetric Nernst effect".Phys. Rev. B 93, 054512, 2016.
"Magnetic field and in-situ stress dependence of elastic behavior in EuTiO3 from resonant ultrasound spectroscopy".Phys. Rev. B 93, 054108, 2016.
"Interfacial effects revealed by ultrafast relaxation dynamics in BiFeO3/YBa2Cu3O7 bilayers".Phys. Rev. B 93, 064510, 2016.
"Hysteretic magnetoresistance and unconventional anomalous Hall effect in the frustrated magnet TmB4".Phys. Rev. B 93, 174408, 2016.
"A versatile rotary-stage high frequency probe station for studying magnetic films and devices".Rev. Sci. Instruments, 87, 074704, 2016.
"A disorder-enhanced quasi-one-dimensional superconductor".Nature Communications 7, Article number: 12262, 2016.
"Current induced domain wall motion in antiferromagnetically coupled (Co70Fe30/Pd) multilayer nanowires".Applied Physics Letters 109, 142403 (2016), 2016.
"Two types of superconducting domes in unconventional superconductors".New J. Phys. 18, 103033, 2016.
"Emergent phenomena induced by spin–orbit coupling at surfaces and interfaces".Nature 539, 509–517 , 2016.
"Geometric tuning of charge and spin correlations in manganite superlattices".Appl. Phys. Lett. 106, 023120 (2015), 2015.
"Magnetoelastic relaxations in EuTiO3".Europhysics Letters 109, 57004, 2015.
"Electromechanics of ferroelectric-like behavior of LaAlO3 thin films".Adv. Funct. Mat., 2015.
"Ferroelectricity in underdoped La-based cuprates".Sci. Rep. 5, 15268 (2015), 2015.
"Origin of modulated phases and magnetic hysteresis in TmB4".Phys. Rev. B, 214433, 2015.
"Emergent properties in plane view: Strong correlations at oxide interfaces".Rev. Mod. Phys. 86, 1189, 2014.
"Emergent vortices at a ferromagnetic superconducting oxide interface".New Journal of Physics 16 103012, 2014.
"Emergent properties in plane view: Strong correlations at oxide interfaces".Rev. Mod. Phys. 86, 1189, 2014.
"Elastic and anelastic relaxations associated with phase transitions in EuTiO3".Phys Rev B. 90, 054119, 2014.
"Induced Ferromagnetism at BiFeO3/YBa2Cu3O7 Interfaces".Sci. Rep. 4, 5368, 2014.
"Long-range electronic reconstruction to a dxz,yz-dominated Fermi surface below the LaAlO3/SrTiO3 interface".Sci. Rep. 4, 5338, 2014.
"Interface-induced magnetic coupling in multiferroic/ferromagnetic bilayer: An ultrafast pump-probe study".Appl. Phys. Lett., 104, 141602, 2014.
"Bi-Quadratic Magnetoelectric Coupling in Underdoped La2CuO4+x".Journal of Superconductivity and Novel Magnetism (Publised Online), 2013.
"Emergence of superconductivity from the dynamically heterogeneous insulating state in La2−xSrxCuO4".Nature Materials (Advance Online Publication) Printed version: Nature Materials 12, 47, 2013.
"Electric field modulation of the tetragonal domain orientation revealed in the magnetic ground state of quantum paraelectric EuTiO3".Phys. Rev. B 87, 064103, 2013.
"Interfacial spin glass state and exchange bias in manganite bilayers with competing magnetic orders".Phys. Rev. B 87, 054428, 2013.
"Enhanced and continuous electrostatic carrier doping on the SrTiO3 surface".Sci. Rep. 3, 1721, 2013.
"Doping dependence of the electron–phonon and electron–spin fluctuation interactions in the high-Tc superconductor Bi2Sr2CaCu2O8+δ".New Journal of Physics, 15, 103027, 2013.
"Effect of annealing on the temperature-dependent dielectric properties of LaAlO3 at terahertz frequencies".AIP Advances 2, 012120, 2012.
"Evidence for filamentary superconductivity nucleated at antiphase domain walls in antiferromagnetic CaFe2As2".Physical Review B 85, 024530, 2012.
"History dependent magnetoresistance in lightly doped La2−xSrxCuO4 thin films".Physica B: Condensed Matter 407, 1915, 2012.
"Theory of the magnetoeletric effect in a lightly doped high-Tc cuprate".Physical Review B 85, 140405 (R), 2012.
"Memory Effects in the Charge Response of Lightly Doped La2-xSrxCuO4".J Supercond Nov Magn., DOI 10.1007/s10948-012-1542-0, 2012.
"Holographic quantum criticality and strange metal transport".New Journal of Physics, 14, 043045, 2012.
"Transport and thermodynamic properties of quasi-two-dimensional purple bronzes A0.9Mo6O17 (A=Na, K)".Phys. Rev. B 85, 195101, 2012.
"Role of intrinsic disorder in the structural phase transition of magnetoelectric EuTiO3".Phys. Rev. B 85, 184107, 2012.
"Low-temperature ferroelectric phase and magnetoelectric coupling in underdoped La2CuO4+x".Phys. Rev. B 85, 214502, 2012.
"Penetration depth study of LaOs4Sb12 : Multiband s-wave superconductivity".Physical Review B 86, 064518 (2012), 2012.
"Filamentary superconductivity across the phase diagram of Ba(Fe,Co)2As2".Phys. Rev. B 86, 064521, 2012.
"Insights from the study of high-temperature interface superconductivity".Phil.Trans.R.Soc. A, 370, 4890–4903, 2012.
"Tunable ferroelectricity in artificial tri-layer superlattices comprised of non-ferroic components".Nature Communications 3, Article number: 1064, 2012.
"Factors affecting the shape of MBE-grown laterally aligned Fe nanowires".Nanotechnology, 23, 485605, 2012.
"Low-energy electron microscope study of tobacco mosaic viruses".J. Nanosci. Lett. 2: 29, 2012.
"Metallic characteristics in superlattices composed of insulators, NdMnO3/SrMnO3/LaMnO3".Applied Physics Letters 98, 171910, 2011.
"Phase-fluctuating superconductivity in overdoped La2−xSrxCuO4".Nature Physics 7, 455, 2011.
"Interface superconductivity: History, development and prospects".Physics Express 1, 208, 2011.
"Non-Gaussian noise in the in-plane transport of lightly doped La2−xSrxCuO4:Evidence for a collective state of charge clusters".Physical Review B 83, 195133, 2011.
"Ferromagnetic interaction between Cu ions in the bulk region of Cu-doped ZnO nanowires".Physical Review B 84, 153203, 2011.
"Evidence for quantum skyrmions in a doped antiferromagnet".Physical Review Letters 106, 227206, 2011.
"Strain-induced interface reconstruction in epitaxial heterostructures".Physical Review B 84, 245428, 2011.
"Tunable Magnetic Interaction at the Atomic Scale in Oxide Heterostructures".Physical Review Letters 105, 167206, 2010.
"Ultrafast Pump-Probe Study of Phase Separation and Competing Orders in the Underdoped (Ba, K)Fe2As2 Superconductor".Physical Review Letters 104, 027003, 2010.
"Quasiparticle dynamics in overdoped Bi1.4Pb0.7Sr1.9CaCu2O8+δ: Coexistence of superconducting gap and pseudogap below Tc".Physical Review B 82, 212503, 2010.
"Relaxor characteristics at the interfaces of NdMnO3/SrMnO3/LaMnO3 superlattices".Physical Review B 82, 140405 (R), 2010.
"Large positive magnetoresistance of the lightly doped La2CuO4 Mott insulator".Physical Review B 81, 235104, 2010.
"Nernst effect and diamagnetic response in a stripe model of superconducting cuprates".Europhysics Letters 91, 67001, 2010.
"Superconducting gap induced barrier enhancement in a BiFeO3-based heterostructure".Applied Physics Letters 97, 252905, 2010.
"Effect of hole doping on the London penetration depth in Bi2.15Sr1.85CaCu2O8+δ and Bi2.1Sr1.9Ca0.85Y0.15Cu2O8+δ".Physical Review B 80, 024516, 2009.
"Transparent and flexible polymerized graphite oxide thin film with frequency-dependent dielectric constant".Applied Physics Letters 95, 172901, 2009.
"Evidence for Charge Glasslike Behavior in Lightly Doped La2-xSrxCuO4 at low temperatures".Physical Review Letters 101, 177004, 2008.
Additional Publications:
Holographic quantum criticality and strange metal transport
B.- S. Kim, E. Kiritsis and C. Panagopoulos New J. Phys. (2012) (in press).
Evidence for filamentary superconductivity nucleated at antiphase domain walls in antiferromagnetic CaFe2As2
H. Xiao, T. Hu, A.P. Dioguardi, N.J. Curro, Z. Viskadourakis, X.Y. Tee, I. Radulov, C. C. Almasan and C. Panagopoulos, Phys. Rev. B 85, 024530 (2012).
(Highlighted by the American Physical Society as Editors’ Suggestion)
Effect of annealing on the temperature-dependent dielectric properties of LaAlO3 at terahertz frequencies
X. Zou, M. He, D. Springer, D. Lee, S.K. Nair, S.A. Cheong, T. Wu, C. Panagopoulos, D. Talbayev and E. M. Chia, AIP Advances 2, 012120 (2012).
Strain-induced interface reconstruction in epitaxial heterostructures
N. Lazarides, V. Paltoglou, P. Maniadis, G.P. Tsironis and C. Panagopoulos, Phys. Rev. B 84, 245428 (2011).
Ferromagnetic interaction between Cu ions in the bulk region of Cu-doped ZnO nanowires
T. Kataoka, Y. Yamazaki,V. R. Singh, A. Fujimori, F.-H. Chang, H.-J. Lin, D. J. Huang, C. T. Chen, G. Z. Xing, J. W. Seo, C. Panagopoulos and T. Wu, Phys. Rev. B 84, 153203 (2011).
Interface superconductivity: History, development and prospects
J. Pereiro, A. Petrovic, C. Panagopoulos and I. Bozovic
Physics Express 1, 208 (2011) – (Invited Review).
Evidence for quantum skyrmions in a doped antiferromagnet.
Raicevic, D. Popovic, C. Panagopoulos, L. Benfatto, M. B. Silva Neto, E. S. Choi and T. Sasagawa, Phys. Rev. Lett. 106, 227206 (2011).
Non-Gaussian noise in the in-plane transport of lightly doped La2-xSrxCuO4: evidence for a collective state of charge clusters.
Raicevic, D. Popovic, C. Panagopoulos and T. Sasagawa, Phys. Rev. B 83, 195133 (2011).
Metallic characteristics confined at the interfaces of superlattices composed of insulators, NdMnO3/SrMnO3/LaMnO3.
J. W. Seo, B. T. Phan, J. Lee, H.-D. Kim and C. Panagopoulos, Appl. Phys. Lett. 98, 171910 (2011).
Phase-fluctuating superconductivity in overdoped La2-xSrxCuO4 .
P. Rourke, I. Mouzopoulou, X. Xu, C. Panagopoulos, Y. Wang, B. Vignolle, C. Proust, E. V. Korganova, U. Zeitler, Y. Tanabe, T. Adachi, Y. Koike and N. E. Hussey, Nature Physics 7, 445 (2011).
Superconducting gap induced barrier enhancement in a BiFeO3-based heterostructure.
C. L. Lu, Y. Wang, L. You, X. Zhou, H. Y. Peng, G. Z. Xing, E. E. M. Chia,
C. Panagopoulos, L. Chen, J.-M. Liu, J. Wang and T. Wu, Appl. Phys. Lett. 97, 252905 (2011).
Quasiparticle dynamics in overdoped Bi1.4Pb0.7Sr1.9CaCu2O8+x: Coexistence of superconducting gap and pseudogap below Tc.
S.K. Nair, X. Zou, E.M. Chia, J.-X. Zhu, C. Panagopoulos, S. Ishida and S. Uchida, Phys. Rev. B 82, 212503 (2010).
Tunable magnetic interaction at the atomic scale in oxide heterostructures.
J. Seo, W. Prellier, P. Padhan, P. Boullay, J.-Y. Kim, H. G. Lee, C. Batista, I. Martin, E. M. Chia, T. Wu, B. -G. Cho and C. Panagopoulos, Phys. Rev. Lett. 105, 167206 (2010).
(Highlighted in Nature Materials, December 2010)
Relaxor characteristics at the interfaces of [NdMnO3/SrMnO3/LaMnO3] superlattices.
J. Seo, B. T. Phan, J. Stahn, J. Lee and C. Panagopoulos, Phys. Rev. B - Rapid Comm. 82, 140405 (2010).
Nernst effect and diamagnetic response in a stripe model of superconducting cuprates.
I. Martin and C. Panagopoulos, Europhysics Letters 91, 67001 (2010).
(Highlighted in Europhysics News, November 2010)
Large positive magnetoresistance of the lightly doped La2CuO4 Mott insulator.
Raicevic, D. Popovic, C. Panagopoulos and T. Sasagawa, Phys. Rev. B 81, 235104 (2010).
Ultrafast pump-probe study of phase separation and competing orders in the underdoped (Ba,K)Fe2As2 superconductor.
E. M. Chia, D. Talbayev, J.-X. Zhu, J. D. Thompson, A. J. Taylor, H. Q. Yuan, T. Park, C. Panagopoulos, G. F. Chen, J. L. Luo, and N. L. Wang, Phys. Rev. Lett. 104, 027003 (2010).
Transparent and flexible polymerized graphite oxide thin film with frequency-dependent dielectric constant.
D.W. Lee, J.W. Seo, G.R. Jelbert, L. de Los Santos V., J.M. Cole, C. Panagopoulos, and C.H.W. Barnes, Appl. Phys. Lett. 95, 172901 (2009).
Effect of hole-doping on the London penetration depth in Bi2.15Sr1.85CaCu2O8+δ and Bi2.1Sr1.9Ca0.85Y0.15Cu2O8+δ.
W. Anukool, S. Barakat, C. Panagopoulos and J. R. Cooper, Phys. Rev. B 80, 024516 (2009).
Doping and temperature dependence of inversion symmetry breaking in La2-xSrxCuO4.
E. Siranidi, D. Lampakis, E. Liarokapis, C. Panagopoulos and K. Conder, Physica C 469, 760 (2009).
Evidence for charge glasslike behavior in lightly doped La2-xSrxCuO4 at low temperatures.
I.Raicevic, J. Jaroszynski, D. Popovic, C. Panagopoulos and T. Sasagawa, Phys. Rev. Lett. 101, 177004 (2008).
Measurement of low energy charge correlations in underdoped spin-glass La-based cuprates using impedance spectroscopy.
G. Jelbert, T. Sasagawa, J. Fletcher, T. Park, J.D. Thompson and C. Panagopoulos, Phys. Rev. B 78, 132513 (2008).
Quantum glassiness and superconductivity in doped low dimensional antiferromagnets.
C. Panagopoulos, International Journal of Modern Physics B 22, No. 16 2501 (2008) - Invited Review.
Lattice effects in the La2-xSrxCuO4 compounds.
E. Liarokapis, E. Siranidi, D. Lampakis, K. Conder and C. Panagopoulos, J. Phys.: Condensed Matter 20, 434233 (2008).
Weak magnetic order in the normal state of the high-Tc superconductor La2-xSrxCuO4.
C. Panagopoulos, M. Majoros, T. Nishizaki and H. Iwasaki, Phys. Rev. Lett. 96, 047002 (2006).
Micro-Raman evidence for topological charge order across the superconducting dome of La2-xSrxCuO4.
D. Lampakis, E. Liarokapis, and C. Panagopoulos, Phys. Rev. B 73, 174518 (2006).
Thermomagnetic hysteretic properties resembling superconductivity in the normal state of La1.85Sr0.15CuO4.
M. Majoros, C. Panagopoulos, T. Nishizaki and H. Iwasaki, Phys. Rev. B 72, 024528 (2005).
Self-generated electronic heterogeneity and quantum glassiness in the high temperature superconductors.
C. Panagopoulos and V. Dobrosavljevic, Phys. Rev. B 72, 014536 (2005).
Thermal hysteresis in the normal state magnetization of La2-xSrxCuO4.
C. Panagopoulos, M. Majoros and A. Petrovic, Phys. Rev. B 69, 144508 (2004). – Story featured in numerous media in Europe, Asia and USA, see for example: American Physical Society Phys. Rev. Focus http://focus.aps.org/story/v13/st19 and in Materials today www.materialstoday.com July/August 2004 p. 15.
Exposing the spin glass ground state of the non-superconducting La2-xSrxCu1-yZnyO4 high-Tc oxide,
C. Panagopoulos, A. Petrovic, A.D Hillier, J.L. Tallon, C.A. Scott and B.D. Rainford. Phys. Rev. B 69, 144510 (2004).
Superfluid density in cuprate high-Tc superconductors – a new paradigm.
J.L. Tallon, J.W. Loram, J.R. Cooper, C. Panagopoulos and C. Bernhard, Phys. Rev. B - Rapid Comm. 68, 180501 (2003).
Superfluid response in monolayer high-Tc cuprates.
C. Panagopoulos, T. Xiang, W. Anukool, Y.S. Wang and C.W. Chu, Phys. Rev. B – Rapid Comm. 67, R220502 (2003).
Temperature dependence of electrical resistivity of high-Tc cuprates.
S.H. Naqib, J.R. Cooper, J.L. Tallon and C. Panagopoulos, Physica C 387, 365 (2003).
Microscopic hamiltonian for Zn or Ni substituted high temperature superconductors.
T. Xiang, Y.H. Su, C. Panagopoulos, Z.B. Su and L. Yu, Phys. Rev. B 66, 174504 (2002).
Pressure effects in the Raman spectra of La2-xSrxCuO4.
D. Lampakis, E. Liarokapis, V. Lykodimos, and C. Panagopoulos, High Pressure Research 22, 83 (2002).
Evidence for a generic quantum transition in high- Tc cuprates.
C. Panagopoulos, J.L. Tallon, B.D. Rainford, T. Xiang, J.R. Cooper and C.A. Scott, Phys. Rev. B 66, 064501 (2002).
Penetration depth measurements in MgB2: evidence for unconventional superconductivity.
C. Panagopoulos, B.D. Rainford, T. Xiang, C.A. Scott, M. Kambara and I.H. Inoue, Phys. Rev. B 64, 94514 (2001).
Phase transitions and Raman spectra correlations in La2-xSrxCuO4 (0.0 £ x £ 0.25).
D. Lampakis, D. Palles, E. Liarokapis, C. Panagopoulos, H. Ehrenberg and T. Hartmann, Phys. Rev. B 62, 8811 (2000).
Effects of doping on thermally excited quasiparticles in the high- Tc superconducting state.
T. Xiang and C. Panagopoulos, Phys. Rev. B 61, 6343 (2000).
C-axis superfluid response and pseudogap in high- Tc superconductors.
C. Panagopoulos, J.R. Cooper, T. Xiang, Y.S. Wang and C.W. Chu, Phys. Rev. B – Rapid Comm. 61, R3808 (2000).
Effects of carrier concentration on the superfluid density of high- Tc cuprates.
C. Panagopoulos, B.D. Rainford, J.R. Cooper, W. Lo, J.L. Tallon, J.W. Loram, J. Betouras, Y.S. Wang and C.W. Chu, Phys. Rev. B 60, 14617 (1999).
Re induced Raman active modes in HgBa2Can-1CunO2n+2+d compounds.
N. Poulakis, D. Lampakis, E. Liarokapis, A. Yoshikawa, K. Kishio, G.B. Peacock, J.P Hodges, I. Gameson, P.P. Edwards and C. Panagopoulos, Phys. Rev. B 60, 3244 (1999).
Effects of the Cu-O chains on the anisotropic penetration depth of YBa2Cu4O8.
C. Panagopoulos, J.L. Tallon and T. Xiang, Phys. Rev. B – Rapid Comm. 59, R6635 (1999).
Relationship between the superconducting energy gap and the critical temperature in high- Tc superconductors.
C. Panagopoulos and T. Xiang, Phys. Rev. Lett. 81, 2336 (1998).
The effect of Cs addition on the phase formation and superconducting properties in the (Bi,Pb)-Sr-Ca-Cu-O system.
N.D.Zhigadlo, V.V.Petrashko, Yu.A.Semenenko, C.Panagopoulos, J.R.Cooper and E.K.H.Salje, Physica C 299, 327 (1998).
Systematic behavior of the in-plane penetration depth of high- Tc cuprates.
C. Panagopoulos, J.R. Cooper and T. Xiang, Phys. Rev. B 57, 13422 (1998).
Low temperature superfluid response of high-Tc superconductors.
T. Xiang, C. Panagopoulos and J.R. Cooper, Int. J. Mod. Physics B 12, 1007 (1998). (Invited review.)
Probing the order parameter and the c-axis coupling of high-Tc cuprates by penetration depth measurements.
C. Panagopoulos, J.R. Cooper, T. Xiang, G.B. Peacock, I. Gameson and P.P. Edwards, Phys. Rev. Lett. 79, 2320 (1997).
High-resolution x-ray diffraction analysis of magnetically aligned high-Tc superconducting ceramics.
J. Chrosch, C. Panagopoulos, N. Athanassopoulou, J. R. Cooper and E.K.H. Salje, Physica C 265, 233 (1996).
Surface quality dependence of the low temperature magnetization of YBa2Cu3O7.
C. Panagopoulos, W. Zhou, N. Athanassopoulou and J. R. Cooper, Physica C 269, 157 (1996).
Effects of Zn doping on the anisotropic penetration depth of YBa2Cu3O7.
C. Panagopoulos, N. Athanassopoulou, J. R. Cooper and J. Chrosch, Phys. Rev. B – Rapid Comm. 54, R12721 (1996).
Anisotropic magnetic penetration depth of grain aligned HgBa2Ca2Cu3O8+d.
C. Panagopoulos, J.R. Cooper, G.B. Peacock, I. Gameson, P.P. Edwards, W. Schmidbauer and J.W. Hodby, Phys. Rev. B – Rapid Comm. 53, R2999 (1996).
Effects of helium gas adsorption on the phonon-drag of granular YBa2Cu3O7-d.
C. Panagopoulos, T. Fukami and T. Aomine, Solid State Comm. 90, 105 (1994).
Temperature gradient and current density effects on the thermoelectric power and electrical resistivity, respectively, near the critical temperature in granular YBa2Cu3O7-d.
C. Panagopoulos, T. Fukami and T. Aomine, Physica C 219, 435 (1994).
The effects of gaseous helium and nitrogen on the thermopower measurements. A note of concern for the discrepancy of the results observed in high temperature superconductors.
C. Panagopoulos, T. Fukami and T. Aomine, Jpn. J. Appl. Phys. 32, Part 1, 4684 (1993).
Flux creep and magnetic field direction dependence of critical current density in Bi2Sr2-xLaxCuO6+y films prepared by laser ablation.
T. Fukami, D.H. Lee, C. Panagopoulos, T. Nishizaki, F. Ichikawa, Y. Horie and T. Aomine, Physica C 215, 375 (1993).
Invited contributions to symposia and compiled volumes
Memory Effects in the Charge Response of Lightly Doped La2-xSrxCuO4
I.Raičević, D. Popović, C. Panagopoulos and T. Sasagawa. To appear in J. Supercond. Nov. Magn (2012).
History dependent magnetoresistance in lightly doped La2-xSrxCuO4 thin films
X. Shi, D. Popovic, C. Panagopoulos, G. Logvenov, A. T. Bollinger, I. Bozovic. Physica B (2011).
Hysteresis and memory effects in c-axis magnetotransport in the underdoped La2-xSrxCuO4. I. Raičević, J. Jaroszyński, D. Popović, G. Jelbert, C. Panagopoulos, and T. Sasagawa. Proc. of SPIE, Vol. 6600, 660020 (2007).
Spin glass order in high-Tc cuprates.
C. Panagopoulos. SPIE proceedings; noise and fluctuations conference 2004.
Local structural distortions and phase separation in cuprates.
D. Lampakis, E. Liarokapis, J. Karpinski, C. Panagopoulos and T. Nishizaki. Journal of Superconductivity 17, 121-125 (2004).
Low-frequency spins and the ground state in high-Tc cuprates.
C. Panagopoulos, J.L. Tallon, B.D. Rainford, J.R. Cooper, C.A. Scott and T. Xiang. Solid State Communications 126, 47 (2003).
High pressure Raman study of Bi-2212.
E. Liarokapis, D. Lampakis, C. Panagopoulos and T. Nishizaki. High Pressure Research, 23 (1-2): 111 (2003).
Critical behaviour in the low-energy spin fluctuations in high- Tc superconductors.
C. Panagopoulos, J.L.Tallon, B.D. Rainford, T. Xiang, J.R. Cooper and C.A. Scott. Journal of Superconductivity: Incorporating Novel Magnetism 15, 335 (2002).
Antiferromagnetic correlations versus superfluid density in La2-xSrxCuO4.
C. Panagopoulos, B.D. Rainford, J.R. Cooper and C.A. Scott. Physica C 341-348, 843 (2000).
Raman studies of the high pressure effects in high-Tc superconductors.
E. Liarokapis, D. Lampakis, T. Nishizaki and C. Panagopoulos. High Pressure Research 18, 109 (2000) (Overseas Publishers Association) N.V.
Scaling of superconducting energy gap with critical temperature in high- Tc superconductors.
C. Panagopoulos and T. Xiang. Physica C 317-318, 373 (1999).
Superfluid response of high-Tc superconductors.
C. Panagopoulos in "High Temperature Superconductivity" Editor: W.Y. Liang, University of Cambridge (1998), p. 44.
Low temperature penetration depth measurements in high-Tc superconductors.
C. Panagopoulos, T. Xiang, J.R. Cooper, and J.L. Tallon. Adv. in Superconductivity XI (Springer Verlag) 1, 133 (1999).
Anisotropic penetration depth measurements of high- Tc superconductors.
C. Panagopoulos, J.R. Cooper, T. Xiang, G.B. Peacock, I. Gameson, P.P. Edwards, W. Schmidbauer and J.W. Hodby. Physica C 282-287, 145 (1997).
Temperature gradient effects on the weak-links of polycrystalline YBa2Cu3O7-d.
C. Panagopoulos, T. Fukami and T. Aomine. Cond. Matter & Materials Comm. 1, 239 (1994).
Surface analysis of pigments and stressed polymer films using x-ray photoelectron spectroscopy.
J. Liesegang, J. L. Pura and C. Panagopoulos. Springer Proceedings in Physics 73, 193 (1992). Surface Science: Principles and Applications eds. R. Howe, R. Lamb and K. Wandelt. Part IV "Thin Films"
Contributed papers
The surface chemistry of Hg-containing superconductors by HREM.
W. Zhou, C.Panagopoulos, E.T. Lee, J.P. Hodges, G.B. Peacock, A.Asab, I. Gameson and P.P. Edwards. Physica C 282-287, 909 (1997).
Magnetic field-direction dependence of critical current density in c-axis oriented Bi2Sr1.7La0.3CuO6+y films.
T. Fukami, D.H. Lee, C. Panagopoulos, T. Nishizaki, F. Ichikawa, Y. Horie and T. Aomine. Physica B 194-196, 1835 (1994).
Last publications