Magnetic interactions and electronic states in superconducting and nonsuperconducting ruthenocuprates

被引：13

作者：

Hirai, Y

Zivkovic, I

Frazer, BH

Reginelli, A

Perfetti, L

Ariosa, D

Margaritondo, G

Prester, M

Drobac, D

Jiang, DT

Hu, Y

Sham, TK

Felner, I

Pederson, M

Onellion, M

机构：

[1] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA

[2] Inst Phys, HR-10000 Zagreb, Croatia

[3] Ecole Polytech Fed Lausanne, Inst Appl Phys, CH-1024 Lausanne, Switzerland

[4] Univ Saskatchewan, Canadian Light Source Inc, Saskatoon, SK S7N 5C6, Canada

[5] Canadian Synchrotron Radiat Facil, Stoughton, WI 53589 USA

[6] Univ Western Ontario, Dept Chem, London, ON N6A 5B7, Canada

[7] Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel

[8] USN, Res Lab, Washington, DC 20375 USA

来源：

PHYSICAL REVIEW B | 2002年 / 65卷 / 05期

关键词：

D O I：

10.1103/PhysRevB.65.054417

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We measured polycrystalline samples of SrRuO3 and both superconducting and nonsuperconducting (hydrogen loaded) ruthenocuprates-Eu1.5Ce0.5RuSr2Cu2O10-x (Ru-1222)-samples using ac susceptibility, Ru 3p x-ray photoemission and Ru 2p x-ray-absorption measurements. The superconducting-and metallic-ruthenocuprate samples exhibit significant ferromagnetic fluctuations above the highest magnetic ordering temperature. The (Ru 3p) core level of the SrRuO3, and superconducting ruthenocuprate samples indicate that the (Ru) layers are metallic.

引用

页码：544171 / 544176

页数：6

共 39 条

[1] Coexistence of ferromagnetism and superconductivity in the hybrid ruthenate-cuprate compound RuSr2GdCu2O8 studied by muon spin rotation and dc magnetization [J].