High magnetic field phase diagram of PrOs4Sb12.
High magnetic field phase diagram of PrOs4Sb12.
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PrOs4Sb12 的高磁场相图。
DOI：
10.1103/physrevlett.92.037203
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发表时间：
2003
影响因子：
8.6
通讯作者：
H. Sato
中科院分区：
文献类型：
--
作者：
C. Rotundu;H. Tsujii;Y. Takano;B. Andraka;H. Sugawara;Y. Aoki;H. Sato
用比热测量方法研究了PrOs_4Sb_（12）在8 ~ 32 T范围内的磁相图。一个新的肖特基异常，由于两个最低的晶体电场（CEF）单态之间的激发，已被发现为H平行（100）和H平行（110）以上的领域，其中场诱导有序相（FIOP）被抑制。所构建的H-T相图显示出弱的磁各向异性，并意味着两个CEF能级在两个场方向上都在约8-9 T处交叉。这些结果提供了一个明确的证据，为伽马（1）单重态CEF基态，并建议作为FIOP的驱动机制的水平交叉（涉及最低CEF水平）。
The magnetic phase diagram of PrOs4Sb12 has been investigated by specific heat measurements between 8 and 32 T. A new Schottky anomaly, due to excitations between two lowest crystalline-electric-field (CEF) singlets, has been found for both H parallel (100) and H parallel (110) above the field where the field-induced ordered phase (FIOP) is suppressed. The constructed H-T phase diagram shows weak magnetic anisotropy and implies a crossing of the two CEF levels at about 8-9 T for both field directions. These results provide an unambiguous evidence for the Gamma(1) singlet being the CEF ground state and suggest the level crossing (involving lowest CEF levels) as the driving mechanism of FIOP.
影响因子：
3.7
作者：
Bauer, ED;Frederick, NA;Maple, MB
通讯作者：
Maple, MB
重费米子超导体 PrOs_4Sb_<12> 中磁场感应四极有序的证据
DOI：
--
发表时间：
2003
期刊：
J.Phys.Soc.Jpn. Vol.72 No.5
影响因子：
--
作者：
日高芳樹;甲斐昌一;et al.;M.Kohgi et al.
通讯作者：
M.Kohgi et al.