Crystalline electric field effects in the electrical resistivity of PrOs4Sb12
Crystalline electric field effects in the electrical resistivity of PrOs4Sb12
复制标题
PrOs4Sb12 电阻率中的晶体电场效应
DOI：
10.1088/0953-8984/15/27/310
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
M. Maple
中科院分区：
文献类型：
--
作者：
N. A. Frederick;M. Maple
最近发现的重费米子超导体PrOs4Sb12的电阻率ρ的温度T和磁场H的关系具有与晶体电场(CEF)分裂Pr3+洪德规则多重态有关的特征。这些特征显然是由于热填充的CEF分裂的Pr3+能级的磁交换和非球面库仑散射造成的。对于不同的磁交换比和非球面库仑散射比，基于电磁场理论的计算可以很好地描述零磁场下的ρ(T)数据，得到的电磁场参数与以前的磁化率、比热和非弹性中子散射测量的结果定性一致。计算的ρ(H)基态等温线定性地解释了测量的Γ(H)等温线中的“穹顶”特征。
The temperature T and magnetic field H dependences of the electrical resistivity ρ of the recently discovered heavy-fermion superconductor PrOs4Sb12 have features that are associated with the splitting of the Pr3+ Hund’s rule multiplet by the crystalline electric field (CEF). These features are apparently due to magnetic exchange and aspherical Coulomb scattering from the thermally populated CEF-split Pr3+ energy levels. The ρ(T) data in zero magnetic field can be described well by calculations based on CEF theory for various ratios of magnetic exchange and aspherical Coulomb scattering, and yield CEF parameters that are qualitatively consistent with those previously derived from magnetic susceptibility, specific heat, and inelastic neutron scattering measurements. Calculated ρ(H) isotherms for a Γ3 ground state qualitatively account for the ‘dome-shaped’ feature in the measured ρ(H) isotherms.
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.