Publications


2001 - 2005

Comparison of dynamics of ions in ionically conducting materials and dynamics of glass-forming substances: Remarkable similarities

Author(s)   Ngai, KL; Habasaki, J; Leon, C; et al.
Source   Zeitschrift Fur Physikalische Chemie-International Journal of Research in Physical Chemistry & Chemical Physics Volume: 219 Issue: 1 Pages: 47-70 Published: 2005
Times Cited   42
DOI   10.1524/zpch.219.1.47.55017
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Cooperative oxygen ion dynamics in Gd2Ti2-yZryO7

Author(s)   Moreno, KJ; Mendoza-Suarez, G; Fuentes, AF; et al.
Source   Physical Review B Volume: 71 Issue: 13 Published: APR 2005
Times Cited   29
DOI   10.1103/PhysRevB.71.132301
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Detailed structural analysis of epitaxial MBE-grown Fe/Cr superlattices by x-ray diffraction and transmission-electron spectroscopy

Author(s)   Gomez, ME; Santamaria, J; Kim, S; et al.
Source   Physical Review B Volume: 71 Issue: 12 Published: MAR 2005
Times Cited   0
DOI   10.1103/PhysRevB.71.125410
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Effects of cooperativity on ion dynamics in oxygen conducting Gd2Ti2-yZryO7

Author(s)   Garcia-Barriocanal, J; Moreno, KJ; Mendoza-Suarez, G; et al.
Source   Journal of Non-Crystalline Solids Volume: 351 Issue: 33-36 Pages: 2813-2818 Published: SEP 15 2005
Times Cited   3
DOI   10.1016/j.jnoncrysol.2005.04.074
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Effects of reduced dimensionality in the relaxation dynamics of ionic conductors

Author(s)   Castro, M; Rivera, A; Garcia-Barriocanal, J; et al.
Source   Europhysics Letters Volume: 69 Issue: 5 Pages: 770-776 Published: MAR 2005
Times Cited   4
DOI   10.1209/epl/i2004-10419-7
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Giant magnetoresistance in ferromagnet/superconductor superlattices

Author(s)   Pena, V; Sefrioui, Z; Arias, D; et al.
Source   Physical Review Letters Volume: 94 Issue: 5 Published: FEB 11 2005
Times Cited   121
DOI   10.1103/PhysRevLett.94.057002
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Influence of vacancy ordering on the percolative behavior of (Li1-xNax)(3y)La2/3-yTiO3 perovskites

Author(s)   Herrero, CP; Varez, A; Rivera, A; et al.
Source   Journal of Physical Chemistry B Volume: 109 Issue: 8 Pages: 3262-3268 Published: MAR 3 2005
Times Cited   10
DOI   10.1021/jp046076p
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Metal-insulator transition above room temperature in maximum colossal magnetoresistance manganite thin films

Author(s)   Chen, XJ; Habermeier, HU; Zhang, H; et al.
Source   Physical Review B Volume: 72 Issue: 10 Published: SEP 2005
Times Cited   32
DOI   10.1103/PhysRevB.72.104403
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Suppressed magnetization in La0.7Ca0.3MnO3/YBa2Cu3O7-delta superlattices

Author(s)   Hoffmann, A; te Velthuis, SGE; Sefrioui, Z; et al.
Source   Physical Review B Volume: 72 Issue: 14 Published: OCT 2005
Times Cited   45
DOI   10.1103/PhysRevB.72.140407
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Vortex phases in superconducting Nb thin films with periodic pinning

Author(s)   Villegas, JE; Gonzalez, EM; Sefrioui, Z; et al.
Source   Physical Review B Volume: 72 Issue: 17 Published: NOV 2005
Times Cited   15
DOI   10.1103/PhysRevB.72.174512
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Correlation between ion hopping conductivity and near constant loss in ionic conductors

Author(s)   Leon, C; Ngai, KL; Rivera, A
Source   Physical Review B Volume: 69 Issue: 13 Published: APR 2004
Times Cited   13
DOI   10.1103/PhysRevB.69.134303
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Coupling of superconductors through a half-metallic ferromagnet: Evidence for a long-range proximity effect

Author(s)   Pena, V; Sefrioui, Z; Arias, D; et al.
Source   Physical Review B Volume: 69 Issue: 22 Published: JUN 2004
Times Cited   103
DOI   10.1103/PhysRevB.69.224502
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Electrical conductivity and oxygen diffusion in Bifevox

Author(s)   Pena, V; Rivera, A; Garcia-Barriocanal, J; et al.
Source   Boletin De La Sociedad Espanola De Ceramica Y Vidrio Volume: 43 Issue: 1 Pages: 67-70 Published: JAN-FEB 2004
Times Cited   1
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Interface barriers for flux motion in high-temperature superconducting superlattices

Author(s)   Villegas, JE; Sefrioui, Z; Varela, M; et al.
Source   Physical Review B Volume: 69 Issue: 13 Published: APR 2004
Times Cited   8
DOI   10.1103/PhysRevB.69.134505
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Long length scale interaction between magnetism and superconductivity in La0.3Ca0.7MnO3/YBa2Cu3O7 superlattices

Author(s)   Pena, V; Sefrioui, Z; Arias, D; et al.
Source   European Physical Journal B Volume: 40 Issue: 4 Pages: 479-482 Published: AUG 2004
Times Cited   4
DOI   10.1140/epjb/e2004-00230-x
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Oxygen mobility in A(2)Ti(2-y)Zr(y)O(7) (A : Y, Gd) ionic conductors

Author(s)   Moreno, KJ; Mendoza-Suarez, G; Fuentes, AF; et al.
Source   Boletin De La Sociedad Espanola De Ceramica Y Vidrio Volume: 43 Issue: 4 Pages: 759-763 Published: JUL-AUG 2004
Times Cited   4
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Zero-magnetic-field dynamic scaling in Bi2Sr2CaCu2O8 thin films

Author(s)   Sefrioui, Z; Arias, D; Leon, C; et al.
Source   Physical Review B Volume: 70 Issue: 6 Published: AUG 2004
Times Cited   4
DOI   10.1103/PhysRevB.70.064502
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A combined molecular dynamics simulation, experimental and coupling model study of the ion dynamics in glassy ionic conductors

Author(s)   Ngai, KL; Habasaki, J; Hiwatari, Y; et al.
Source   Journal of Physics-Condensed Matter Volume: 15 Issue: 16 Pages: S1607-S1632 Published: APR 30 2003
Times Cited   29
DOI   10.1088/0953-8984/15/16/310
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A quantitative explanation of the difference between nuclear spin relaxation and ionic conductivity relaxation in superionic glasses

Author(s)   Ngai, KL; Leon, C
Source   Journal of Non-Crystalline Solids Volume: 315 Issue: 1-2 Pages: 124-133 Published: JAN 2003
Times Cited   19
DOI   10.1016/S0022-3093(02)01593-4
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Comment on "Scaling of the interface roughness in Fe-Cr superlattices: Self-affine versus non-self-affine" - Reply

Author(s)   Santamaria, J; Gomez, ME; Vicent, JL; et al.
Source   Physical Review Letters Volume: 91 Issue: 11 Published: SEP 12 2003
Times Cited   0
DOI   10.1103/PhysRevLett.91.119602
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Ferromagnetic/superconducting proximity effect in La0.7Ca0.3MnO3/YBa2Cu3O7-delta superlattices

Author(s)   Sefrioui, Z; Arias, D; Pena, V; et al.
Source   Physical Review B Volume: 67 Issue: 21 Published: JUN 1 2003
Times Cited   127
DOI   10.1103/PhysRevB.67.214511
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Influence of quenching treatments on structure and conductivity of the Li3xLa2/3-xTiO3 series

Author(s)   Varez, A; Ibarra, J; Rivera, A; et al.
Source   Chemistry of Materials Volume: 15 Issue: 1 Pages: 225-232 Published: JAN 14 2003
Times Cited   25
DOI   10.1021/cm020172q
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Li mobility in (Li,Na)(y)La0.66-y/3TiO3 perovskites (0.09 < y <= 0.5). A model system for the percolation theory.

Author(s)   Sanz, J; Rivera, A; Leon, C; et al.
Source   Solid State Ionics-2002 Volume: 756 Pages: 51-56 Published: 2003
Times Cited   1
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Nanoscale analysis of YBa2Cu3O7-x/La0.67Ca0.33MnO3 interfaces

Author(s)   Varela, M; Lupini, AR; Pennycook, SJ; et al.
Source   Solid-State Electronics Volume: 47 Issue: 12 Pages: 2245-2248 Published: DEC 2003
Times Cited   47
DOI   10.1016/S0038-1101(03)00205-3
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Pair breaking by chain oxygen disorder in light-ion irradiated YBa2Cu3Ox thin films

Author(s)   Arias, D; Sefrioui, Z; Loos, GD; et al.
Source   Physical Review B Volume: 68 Issue: 9 Published: SEP 1 2003
Times Cited   0
DOI   10.1103/PhysRevB.68.094515
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Temperature dependence of the ionic conductivity in Li3xLa2/3-xTiO3: Arrhenius versus non-Arrhenius

Author(s)   Rivera, A; Santamaria, J; Leon, C; et al.
Source   Applied Physics Letters Volume: 82 Issue: 15 Pages: 2425-2427 Published: APR 14 2003
Times Cited   11
DOI   10.1063/1.1568169
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Temperature dependence of the near constant loss in ionic conductors: a coupling model approach

Author(s)   Rivera, A; Santamaria, J; Leon, C; et al.
Source   Journal of Physics-Condensed Matter Volume: 15 Issue: 16 Pages: S1633-S1642 Published: APR 30 2003
Times Cited   6
DOI   10.1088/0953-8984/15/16/311
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Artificially induced reduction of the dissipation anisotropy in high-temperature superconductors

Author(s)   Gonzalez, EM; Villegas, JE; Varela, M; et al.
Source   Applied Physics Letters Volume: 80 Issue: 21 Pages: 3994-3996 Published: MAY 27 2002
Times Cited   2
DOI   10.1063/1.1482420
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Cage decay, near constant loss, and crossover to cooperative ion motion in ionic conductors: Insight from experimental data

Author(s)   Ngai, KL; Leon, C
Source   Physical Review B Volume: 66 Issue: 6 Published: AUG 1 2002
Times Cited   66
DOI   10.1103/PhysRevB.66.064308
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Cation mass dependence of the nearly constant dielectric loss in alkali triborate glasses

Author(s)   Rivera, A; Leon, A; Varsamis, CPE; et al.
Source   Physical Review Letters Volume: 88 Issue: 12 Published: MAR 25 2002
Times Cited   28
DOI   10.1103/PhysRevLett.88.125902
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Comment on "Ionic conduction in glass: New information on the interrelation between the 'Jonscher behavior' and the 'Nearly constant-loss behavior' from broadband conductivity spectra"

Author(s)   Leon, C; Rivera, A; Santamaria, J; et al.
Source   Physical Review Letters Volume: 89 Issue: 7 Published: AUG 12 2002
Times Cited   8
DOI   10.1103/PhysRevLett.89.079601
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Correlated oxygen diffusion in BIFEVOX

Author(s)   Pena, V; Rivera, A; Leon, C; et al.
Source   Chemistry of Materials Volume: 14 Issue: 4 Pages: 1606-1609 Published: APR 2002
Times Cited   8
DOI   10.1021/cm010743z
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Crossover from ionic hopping to nearly constant loss in the fast ionic conductor Li0.18La0.61TiO3

Author(s)   Rivera, A; Leon, C; Sanz, J; et al.
Source   Physical Review B Volume: 65 Issue: 22 Published: JUN 1 2002
Times Cited   17
DOI   10.1103/PhysRevB.65.224302
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Crossover of near-constant loss to ion hopping relaxation in ionically conducting materials: experimental evidences and theoretical interpretation

Author(s)   Leon, C; Rivera, A; Varez, A; et al.
Source   Journal of Non-Crystalline Solids Volume: 305 Issue: 1-3 Pages: 88-95 Published: JUL 1 2002
Times Cited   7
DOI   10.1016/S0022-3093(02)01126-2
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Direct correlation between T-c and CuO2 bilayer spacing in YBa2Cu3O7-x

Author(s)   Varela, M; Arias, D; Sefrioui, Z; et al.
Source   Physical Review B Volume: 66 Issue: 13 Published: OCT 1 2002
Times Cited   6
DOI   10.1103/PhysRevB.66.134517
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Direct growth of epitaxial La0.67Ca0.33MnO3-delta thin films

Author(s)   Campillo, G; Castro, LF; Vivas, P; et al.
Source   Surface Review and Letters Volume: 9 Issue: 5-6 Pages: 1611-1615 Published: OCT-DEC 2002
Times Cited   3
DOI   10.1142/S0218625X02004086
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Effects of epitaxial strain on the growth mechanism in YBa2Cu3O7-x thin films in YBa2Cu3O7-x/PrBa2Cu3O7 superlattices

Author(s)   Varela, M; Grogger, W; Arias, D; et al.
Source   Physical Review B Volume: 66 Issue: 17 Published: NOV 1 2002
Times Cited   11
DOI   10.1103/PhysRevB.66.174514
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Interfacially dominated giant magnetoresistance in Fe/Cr superlattices

Author(s)   Santamaria, J; Gomez, ME; Cyrille, MC; et al.
Source   Physical Review B Volume: 65 Issue: 1 Published: JAN 1 2002
Times Cited   11
DOI   10.1103/PhysRevB.65.012412
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Li3xLa(2/3)-xTiO3 fast ionic conductors. Correlation between lithium mobility and structure

Author(s)   Rivera, A; Leon, C; Santamaria, J; et al.
Source   Journal of Non-Crystalline Solids Volume: 307 Pages: 992-998 Published: SEP 2002
Times Cited   15
DOI   10.1016/S0022-3093(02)01564-8
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Origin and properties of the nearly constant loss in crystalline and glassy ionic conductors

Author(s)   Rivera, A; Santamaria, J; Leon, C; et al.
Source   Journal of Non-Crystalline Solids Volume: 307 Pages: 1024-1030 Published: SEP 2002
Times Cited   9
DOI   10.1016/S0022-3093(02)01568-5
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Percolation-limited ionic diffusion in Li0.5-xNaxLa0.5TiO3 perovskites (0 <= x <= 0.5)

Author(s)   Rivera, A; Leon, C; Santamaria, J; et al.
Source   Chemistry of Materials Volume: 14 Issue: 12 Pages: 5148-5152 Published: DEC 2002
Times Cited   34
DOI   10.1021/cm0204627
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Scaling of the interface roughness in Fe-Cr superlattices: Self-affine versus non-self-affine

Author(s)   Santamaria, J; Gomez, ME; Vicent, JL; et al.
Source   Physical Review Letters Volume: 89 Issue: 19 Published: NOV 4 2002
Times Cited   31
DOI   10.1103/PhysRevLett.89.190601
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Superconductivity depression in ultrathin YBa2Cu3O7-delta layers in La0.7Ca0.3MnO3/YBa2Cu3O7-delta superlattices

Author(s)   Sefrioui, Z; Varela, M; Pena, V; et al.
Source   Applied Physics Letters Volume: 81 Issue: 24 Pages: 4568-4570 Published: DEC 9 2002
Times Cited   74
DOI   10.1063/1.1526463
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The crossover from the near constant loss to ion hopping ac conductivity in ionic conductors: the crossover times

Author(s)   Ngai, KL; Rendell, RW; Leon, C
Source   Journal of Non-Crystalline Solids Volume: 307 Pages: 1039-1049 Published: SEP 2002
Times Cited   15
DOI   10.1016/S0022-3093(02)01570-3
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Chain oxygen disorder in deoxygenated YBa2Cu3O7-delta thin films induced by light ion irradiation

Author(s)   Arias, D; Sefrioui, Z; Varela, M; et al.
Source   Journal of Alloys and Compounds Volume: 323 Pages: 576-579 Published: JUL 12 2001
Times Cited   1
DOI   10.1016/S0925-8388(01)01180-X
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Correlation between magnetic and transport properties in nanocrystalline Fe thin films: A grain-boundary magnetic disorder effect

Author(s)   Sefrioui, Z; Menendez, JL; Navarro, E; et al.
Source   Physical Review B Volume: 64 Issue: 22 Published: DEC 1 2001
Times Cited   10
DOI   10.1103/PhysRevB.64.224431
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Direct evidence for block-by-block growth in high-temperature superconductor ultrathin films

Author(s)   Varela, M; Grogger, W; Arias, D; et al.
Source   Physical Review Letters Volume: 86 Issue: 22 Pages: 5156-5159 Published: MAY 28 2001
Times Cited   24
DOI   10.1103/PhysRevLett.86.5156
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Effect of anisotropy on the vortex liquid dissipation in YBa2Cu3O7-delta thin films

Author(s)   Sefrioui, Z; Arias, D; Varela, M; et al.
Source   Journal of Alloys and Compounds Volume: 323 Pages: 572-575 Published: JUL 12 2001
Times Cited   4
DOI   10.1016/S0925-8388(01)01179-3
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Effect of light ion irradiation on the flux dynamics of YBa2Cu3O7-delta thin films

Author(s)   Arias, D; Sefrioui, Z; Gonzalez, EM; et al.
Source   Ieee Transactions on Applied Superconductivity Volume: 11 Issue: 1 Pages: 3928-3930 Published: MAR 2001
Times Cited   0
DOI   10.1109/77.919932
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Electrical conductivity relaxation in thin-film yttria-stabilized zirconia

Author(s)   Rivera, A; Santamaria, J; Leon, C
Source   Applied Physics Letters Volume: 78 Issue: 5 Pages: 610-612 Published: JAN 29 2001
Times Cited   33
DOI   10.1063/1.1343852
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Electron-electron interaction and weak localization effects in badly metallic SrRuO3

Author(s)   de la Torre, MAL; Sefrioui, Z; Arias, D; et al.
Source   Physical Review B Volume: 63 Issue: 5 Published: FEB 1 2001
Times Cited   13
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Evidence for vortex tunnel dissipation in deoxygenated YBa2Cu3O6.4 thin films

Author(s)   Sefrioui, Z; Arias, D; Morales, F; et al.
Source   Physical Review B Volume: 63 Issue: 5 Published: FEB 1 2001
Times Cited   5
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High-resolution and energy-filtered transmission electron microscopy of YBa2Cu3O7-x/PrBa2Cu3O7 superlattices

Author(s)   Varela, M; Ballesteros, C; Grogger, W; et al.
Source   Journal of Alloys and Compounds Volume: 323 Pages: 558-561 Published: JUL 12 2001
Times Cited   1
DOI   10.1016/S0925-8388(01)01143-4
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Lithium intercalation in FeOC1 revisited

Author(s)   Sagua, A; Moran, E; Alario-Franco, MA; et al.
Source   International Journal of Inorganic Materials Volume: 3 Issue: 4-5 Pages: 293-301 Published: JUL 2001
Times Cited   7
DOI   10.1016/S1466-6049(01)00034-4
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Low temperature ac conductivity in the fast ionic conductor Li0.18La0.61TiO3

Author(s)   Rivera, A; Varez, A; Sanz, J; et al.
Source   Journal of Alloys and Compounds Volume: 323 Pages: 545-548 Published: JUL 12 2001
Times Cited   2
DOI   10.1016/S0925-8388(01)01140-9
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Magnetism and superconductivity in La0.7Ca0.3MnO3/YBa2Cu3O7-delta superlattices

Author(s)   Prieto, P; Vivas, P; Campillo, G; et al.
Source   Journal of Applied Physics Volume: 89 Issue: 12 Pages: 8026-8029 Published: JUN 15 2001
Times Cited   50
DOI   10.1063/1.1370994
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Na-Li exchange of Na1+xTi2-xAlx(PO4)(3) (0.6 <= x <= 0.9) NASICON series: a Rietveld and impedance study

Author(s)   Mouahid, FE; Zahir, M; Maldonado-Manso, P; et al.
Source   Journal of Materials Chemistry Volume: 11 Issue: 12 Pages: 3258-3263 Published: 2001
Times Cited   21
DOI   10.1039/b102918p
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Nature and properties of the Johari-Goldstein beta-relaxation in the equilibrium liquid state of a class of glass-formers

Author(s)   Ngai, KL; Lunkenheimer, P; Leon, C; et al.
Source   Journal of Chemical Physics Volume: 115 Issue: 3 Pages: 1405-1413 Published: JUL 15 2001
Times Cited   172
DOI   10.1063/1.1381054
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Origin of constant loss in ionic conductors

Author(s)   Leon, C; Rivera, A; Varez, A; et al.
Source   Physical Review Letters Volume: 86 Issue: 7 Pages: 1279-1282 Published: FEB 12 2001
Times Cited   135
DOI   10.1103/PhysRevLett.86.1279
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Test of universal scaling of ac conductivity in ionic conductors

Author(s)   Leon, C; Lunkenheimer, P; Ngai, KL
Source   Physical Review B Volume: 64 Issue: 18 Published: NOV 1 2001
Times Cited   17
DOI   10.1103/PhysRevB.64.184304
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Vortex liquid entanglement in irradiated YBa2Cu3O7 thin films

Author(s)   Sefrioui, Z; Arias, D; Gonzalez, EM; et al.
Source   Physical Review B Volume: 63 Issue: 6 Published: FEB 1 2001
Times Cited   15
DOI   10.1103/PhysRevB.63.064503
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