First Observation of a Kondo Effect from Praseodymium Excited Crystal-Field Levels inLa1−xPrxSn3Compounds
First Observation of a Kondo Effect from Praseodymium Excited Crystal-Field Levels inLa1−xPrxSn3Compounds
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首次观察 La1−xPrxSn3 化合物中镨激发晶体场能级的近藤效应
DOI：
10.1103/physrevlett.35.1391
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发表时间：
1975
影响因子：
8.6
通讯作者：
P. Haen
中科院分区：
文献类型：
--
作者：
P. Lethuillier;P. Haen
研究了La 1− x Pr x Sn 3化合物（x= 0.0，0. 1、0。2、0。4和1.0）在1 - 300 K之间进行了测量。观察到的电阻率的最小值，这是由于近藤效应的激发晶体场水平的praseo-xenon离子，基态被激活。ρ（La 1− x Pr x Sn 3）− ρ（La Sn 3）与ln T的关系在25 K以上近似呈线性。
The electrical resistivity of La 1− x Pr x Sn 3 compounds (x= 0.0, 0. 1, 0. 2, 0. 4, and 1.0) has been measured between 1 and 300 K. A resistivity minimum is observed, which arises from a Kondo effect due to excited crystal-field levels of the praseodymium ion, the ground state being nonmagnetic. The plot of ρ (La 1− x Pr x Sn 3)− ρ (La Sn 3) versus ln T is approximately linear above 25 K.