Observation of the c-f hybridization effect in valence-transition system EuPtP
Observation of the c-f hybridization effect in valence-transition system EuPtP
复制标题
价态跃迁体系EuPtP中c-f杂化效应的观察
DOI:
10.1002/pssc.201600185
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发表时间:
2017
期刊:
影响因子:
--
通讯作者:
and K. Mimura
中科院分区:
文献类型:
--
作者:
H. Anzai;K. Ichiki;Eike F. Schwier;H. Iwasawa;M. Arita;H. Sato;K. Shimada;H. Namatame;M. Taniguchi;A. Mitsuda;H. Wada;and K. Mimura
We study the electronic structure of EuPtP, which exhibits two first‐order valence transitions atT1= 247 K andT2= 201 K, using angle‐resolved photoemission spectroscopy. BelowT2, we observe an energy gap at the crossing point of the bulk Eu 4fand conduction bands. The shape of band dispersions is described by a hybridization‐band picture based on the periodic Anderson model. Our results demonstrate thec‐fhybridization effect in the low‐temperature phase of EuPtP.