The Volleben effect in magnetic superconductors Dy1-xYxRh4B4 (x=0.2, 0.3, 0.4, and 0.6)

被引:11
作者
Dmitriev, V. M. [1 ,2 ]
Terekhov, A. V. [1 ,2 ,3 ]
Zaleski, A. [3 ]
Khatsko, E. N. [1 ]
Kalinin, P. S. [1 ]
Rykova, A. I. [1 ]
Gurevich, A. M. [1 ]
Glagolev, S. A. [1 ]
Khlybov, E. P. [2 ,4 ]
Kostyleva, I. E. [2 ,4 ]
Lachenkov, S. A. [5 ]
机构
[1] Natl Acad Sci Ukraine, B Verkin Inst Low Temp Phys & Engn, UA-61103 Kharkov, Ukraine
[2] Int Lab High Magnet Fields & Low Temp, PL-53421 Wroclaw, Poland
[3] Polish Acad Sci, W Trzebiatowski Inst Low Temp & Struct Res, PL-50950 Wroclaw, Poland
[4] Russian Acad Sci, LV Vereshchagin Inst High Pressure Phys, Troitsk 142190, Moscow Region, Russia
[5] Russian Acad Sci, AA Baikov Inst Met & Mat, Moscow 119991, Russia
关键词
HIGH-TEMPERATURE SUPERCONDUCTORS; MEISSNER; FLUX;
D O I
10.1063/1.3681903
中图分类号
O59 [应用物理学];
学科分类号
摘要
The Volleben effect ("paramagnetic" Meissner effect) was revealed for the first time while measuring the temperature dependence of magnetic moments of Dy1-xYxRh4B4 (x = 0.2, 0.3, 0.4, 0.6) in magnetic fields 1-20 Oe. The effect decreases with increasing magnetic field strength, and at fields below 1 Oe a diamagnetic signal appears. The ferromagnetism of Dy atoms supposedly plays an essential role in the appearance of paramagnetic signal at temperatures below the superconducting transition temperature. (C) 2012 American Institute of Physics. [doi: 10.1063/1.3681903]
引用
收藏
页码:154 / 156
页数:3
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