Mössbauer study of superconducting LaFe4P12

Mössbauer study of superconducting LaFe4P12
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穆斯堡尔超导 LaFe4P12 研究

DOI:
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发表时间:
1982
期刊:
影响因子:
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通讯作者:
G. Meisner
G. Meisner
中科院分区:
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文献类型:
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作者:
G. Shenoy;D. Noakes;G. Meisner

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具有“填充方钴矿”结构的三元化合物LaFe_4P_(12)是Tc = 4.08K的超导体。我们用~(57)Fe的穆斯堡尔效应表明,LaFe_4P_(12)中Fe的磁矩小于0.01μB。测得的异构体位移值表明Fe的自旋配对3d构型。的位移和共振分数的温度依赖性被用来建立一个弱耦合的三维电子与声子,耦合参数约为0.4至0.5。
The ternary compound LaFe4P12 having a ’’filled skutterudite’’ structure is a superconductor with Tc = 4.08 K. We have used the Mossbauer effect of 57Fe to show that the magnetic moment of Fe in LaFe4P12 is less than 0.01μB. The value of the measured isomer shift indicates a spin‐paired 3d configuration of Fe. The temperature dependence of the shift and the resonance fraction are used to establish a weak coupling of 3d electrons with the phonons, the coupling parameter being about 0.4 to 0.5.