Magnetic Proximity Effect in YBa2Cu3O7/La2/3Ca1/3MnO3 and YBa2Cu3O7/LaMnO3+δ Superlattices

被引：92

作者：

Satapathy, D. K. ^{[1
,9
]}

Uribe-Laverde, M. A. ^{[1
,9
]}

Marozau, I. ^{[1
,9
]}

Malik, V. K. ^{[1
,9
]}

Das, S. ^{[1
,9
]}

Wagner, Th. ^{[1
,9
]}

Marcelot, C. ^{[2
]}

Stahn, J. ^{[2
]}

Brueck, S. ^{[3
]}

Ruehm, A. ^{[4
]}

Macke, S. ^{[4
]}

Tietze, T. ^{[4
]}

Goering, E. ^{[4
]}

Frano, A. ^{[5
,6
]}

Kim, J. -H. ^{[5
]}

Wu, M. ^{[5
]}

Benckiser, E. ^{[5
]}

Keimer, B. ^{[5
]}

Devishvili, A. ^{[7
]}

Toperverg, B. P. ^{[7
]}

Merz, M. ^{[8
]}

Nagel, P. ^{[8
]}

Schuppler, S. ^{[8
]}

Bernhard, C. ^{[1
,9
]}

机构：

[1] Univ Fribourg, Dept Phys, CH-1700 Fribourg, Switzerland

[2] Paul Scherrer Inst, Neutron Scattering Lab, CH-5232 Villigen, Switzerland

[3] Univ Wurzburg, Inst Phys, D-97074 Wurzburg, Germany

[4] Max Planck Inst Intelligente Syst, D-70569 Stuttgart, Germany

[5] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany

[6] Helmholtz Zentrum Berlin Mat & Energie, D-12489 Berlin, Germany

[7] Ruhr Univ Bochum, Inst Solid State Phys, D-44801 Bochum, Germany

[8] Karlsruhe Inst Technol, Inst Festkorperphys, D-76021 Karlsruhe, Germany

[9] Fribourg Ctr Nanomat, CH-1700 Fribourg, Switzerland

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 19期

关键词：

SUPERCONDUCTIVITY; INTERFACE;

D O I：

10.1103/PhysRevLett.108.197201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using neutron reflectometry and resonant x-ray techniques we studied the magnetic proximity effect (MPE) in superlattices composed of superconducting YBa2Cu3O7 and ferromagnetic-metallic La0.67Ca0.33MnO3 or ferromagnetic-insulating LaMnO3+delta. We find that the MPE strongly depends on the electronic state of the manganite layers, being pronounced for the ferromagnetic-metallic La0.67Ca0.33MnO3 and almost absent for ferromagnetic-insulating LaMnO3+delta. We also detail the change of the magnetic depth profile due to the MPE and provide evidence for its intrinsic nature.

引用

页数：5

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