COMPETITION BETWEEN SUPERCONDUCTIVITY AND ANTIFERROMAGNETISM IN CU(2) LAYERS OF Y1-XPRXBA2CU3-YFEYOZ, Y1-XPRXBA2CU3-YCOYOZ, Y1-XPRXBA2CU3-YZNYOZ

被引：67
作者：
FELNER, I
NOWIK, I
BAUMINGER, ER
HECHEL, D
YARON, U
机构：
[1] The Racah Institute of Physics, The Hebrew University of Jerusalem
来源：
PHYSICAL REVIEW LETTERS | 1990年 / 65卷 / 15期
关键词：
D O I：
10.1103/PhysRevLett.65.1945
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The antiferromagnetic (AFM) and superconducting (SC) phase-transition temperatures of Y1-xPrxBa2Cu3-yMyOz, M=Fe,Co,Zn, were studied by magnetometry and Fe57 Mössbauer spectroscopy. For z7, substitutions at all sites except those in the CuO2 planes (Pr,Fe,Co) cause superconductivity to disappear at xc=0.5 or yc=0.4 and antiferromagnetism to appear above xc and yc. For z6, antiferromagnetism persists for all x and y values. On the other hand, substitution in the Cu(2) planes (Zn) suppresses both superconductivity at yc=0.24 for z7 and antiferromagnetism for z6. No antiferromagnetism is seen for z7. © 1990 The American Physical Society.
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页码：1945 / 1948
页数：4
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