Magnetic Phase Diagram of the Heavy Fermion Superconductor PrOs4Sb12
Magnetic Phase Diagram of the Heavy Fermion Superconductor PrOs4Sb12
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重费米子超导体 PrOs4Sb12 的磁相图
DOI：
10.1143/jpsj.72.1516
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发表时间：
2003
影响因子：
1.7
通讯作者：
H. Sato
中科院分区：
文献类型：
--
作者：
T. Tayama;T. Sakakibara;H. Sugawara;Y. Aoki;H. Sato
用高分辨直流磁化强度测量方法研究了第一个Pr基重费米子超导体ProS4Sb12在0.06K的低温磁化强度M(T)随温度的变化.在Tc1=1.83K和Tc2=1.65K处，磁化强度M(T)随温度变化呈现两个明显的反常，与零场下的比热测量结果一致.随着磁场H的增加，Tc1(H)和Tc2(H)都向较低的温度方向移动，但没有表现出相交的趋势。在10kOe以上，Tc2(H)处的转变似乎合并到等温M(H)曲线上临界场Hc2附近观察到的一条峰效应线中，这表明这两个现象是共同的起源。在40kOe以上的三个主方向上证实了场诱导有序相(这里称为A相)的存在，其各向异性A相转变温度TA：TA[100]>；TA[111]>；TA[110]。目前的结果..。
We investigated the magnetic phase diagram of the first Pr-based heavy fermion superconductor PrOs 4 Sb 12 by means of high-resolution dc magnetization measurements in low temperatures down to 0.06 K. The temperature dependence of the magnetization M ( T ) at 0.1 kOe exhibits two distinct anomalies at T c1 =1.83 K and T c2 =1.65 K, in agreement with the specific heat measurements at zero field. Increasing magnetic field H , both T c1 ( H ) and T c2 ( H ) move toward lower temperatures without showing a tendency of intersecting to each other. Above 10 kOe, the transition at T c2 ( H ) appears to merge into a line of the peak effect which is observed near the upper critical field H c2 in the isothermal M ( H ) curves, suggesting a common origin for these two phenomena. The presence of the field-induced ordered phase (called phase A here) is confirmed for three principal directions above 40 kOe, with the anisotropic A-phase transition temperature T A : T A [100] > T A [111] > T A [110] . The present results ...
影响因子：
3.7
作者：
Bauer, ED;Frederick, NA;Maple, MB
通讯作者：
Maple, MB