Crystal Field Triplets: A New Route to Non-Fermi-Liquid Physics
Crystal Field Triplets: A New Route to Non-Fermi-Liquid Physics
复制标题
晶体场三重态：非费米液体物理的新途径
DOI：
10.1103/physrevlett.83.2421
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发表时间：
1999
影响因子：
8.6
通讯作者：
D. Cox
中科院分区：
文献类型：
--
作者：
M. Koga;G. Zaránd;D. Cox
A model for crystal field triplet ground states of rare earth or actinide ions with dipolar and quadrupolar couplings to conduction electrons is studied for the first time with renormalization group methods. The quadrupolar coupling leads to a new nontrivial, non-Fermi-liquid fixed point, which survives in an intermediate valence Anderson model. The calculated magnetic susceptibility displays one parameter scaling, going as T{sup {minus}{alpha}} ({alpha}{approx}0.4 ) at intermediate temperatures, reminiscent of the non-Fermi-liquid alloy UCu{sub 5{minus}x} Pd{sub x} . {copyright} {ital 1999} {ital The American Physical Society}
A model for crystal field triplet ground states of rare earth or actinide ions with dipolar and quadrupolar couplings to conduction electrons is studied for the first time with renormalization group methods. The quadrupolar coupling leads to a new nontrivial, non-Fermi-liquid fixed point, which survives in an intermediate valence Anderson model. The calculated magnetic susceptibility displays one parameter scaling, going as T{sup {minus}{alpha}} ({alpha}{approx}0.4 ) at intermediate temperatures, reminiscent of the non-Fermi-liquid alloy UCu{sub 5{minus}x} Pd{sub x} . {copyright} {ital 1999} {ital The American Physical Society}