Magnetic structure of RuSr2(Eu1.5Ce0.5)Cu2O10-δ studied by 119Sn-Mossbauer spectroscopy

被引：3
|
作者：
López, Ada
Azevedo, I. Souza
González, J. L.
Baggio-Saitovitch, E.
Micklitz, H.
机构：
[1] CME, Ctr Brasileiro Pesquisos Fis, BR-22290180 Rio De Janeiro, Brazil
[2] Univ Cologne, Inst Phys 2, D-50937 Cologne, Germany
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2006年 / 442卷 / 01期
关键词：
Sn-119-Mossbauer; high-Tc cuprates superconductors; Ru-1222;
D O I：
10.1016/j.physc.2006.04.015
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report on the results of Sn-119-Mossbauer measurements performed between room temperature and 4.2 K on a series of doped (Ru1-xSnx)Sr-2(Eu1.5Ce0.5)Cu2O10-delta samples (with x = 0.02, 0.04 and 0.06) (so called 1222-type). The spectral analysis suggests that Sn substitutes Ru5+ at the RuO2 layers, and enters as Sn4+. We observe for the 4.2 K Mossbauer measurements that an in-plane transferred hyperfine field (hf) exists at the Sn(Ru) site in the (Ru,Sn) O-2 layers. The value of the average hf field decreases with increasing Sn concentration from 3.64 T (for x = 0.02) to 2.62 T (for x = 0.06). (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：33 / 38
页数：6
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