Anisotropic electrical resistivity of the magnetic heavy-fermion superconductor URu2Si2.
Anisotropic electrical resistivity of the magnetic heavy-fermion superconductor URu2Si2.
复制标题
磁性重费米子超导体 URu2Si2 的各向异性电阻率。
DOI:
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发表时间:
1986
期刊:
影响因子:
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通讯作者:
Mydosh
中科院分区:
文献类型:
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作者:
Palstra;Menovsky;Mydosh
Electrical-resistivity measurements rho(T,H) on single-crystal URu/sub 2/Si/sub 2/ have been performed between 0.3 and 300 K in fields up to 7 T. rho(T) is highly anisotropic with the 300-K values parallel to the a and c axes differing by a factor of 2. Both directions exhibit a drho/dT<0 down to 80 K, followed by a steep decrease in rho below 50 K. An upper antiferromagnetic transition is clearly discerned by a 'Cr-like' anomaly at roughly-equal17 K which also marks the onset of a strong, positive rho(H). Below 4 K rho(T) is isotropic and goes to zero at the superconducting transition T/sub c/ = 0.8 K.