Spin-flop phase and heavy fermion behavior in CePb3.
Spin-flop phase and heavy fermion behavior in CePb3.
复制标题
CePb3 中的自旋翻转相和重费米子行为。
DOI：
--
复制
发表时间：
1996
期刊：
影响因子：
--
通讯作者：
Julian
中科院分区：
文献类型：
--
作者：
Mcdonough;Julian
测量了高质量反铁磁重费米子化合物Ce${mathrm{Pb}}_{3}$单晶的磁电阻随磁场的变化（最高可达18 T）、温度（8 mK ~ 8 K）的变化以及磁场取向的变化。在N 'eel温度以下，观察到两个场诱导相变，它们发生在大约5和9.5T处，场平行于（110），但是当场旋转到（100）时，它们合并成单个相变。该行为与位于低场反铁磁相和高场铁磁极化相之间的自旋翻转相一致。在接近自旋翻转转变时，电阻率的${T}^{2}$系数增强，费米液体区被抑制。
The magnetoresistance of a high-quality single crystal of the antiferromagnetic heavy fermion compound Ce${mathrm{Pb}}_{3}$ has been measured as a function of field up to 18 T, as a function of temperature between 8 mK and 8 K, and as a function of field orientation. Below the N'eel temperature, two field-induced phase transitions are observed, which occur at approximately 5 and 9.5 T with the field parallel to (110), but which merge into a single transition when the field is rotated to (100). The behavior is consistent with a spin-flop phase lying between the low-field antiferromagnetic phase and the high-field ferromagnetically polarized phase. Close to the spin-flop transition the ${T}^{2}$ coefficient of resistivity is enhanced, and the Fermi-liquid regime suppressed.