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
复制
发表时间:
2017
期刊:
Physica Status Solidi C
影响因子:
--
通讯作者:
and K. Mimura
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

文献摘要

相似文献

我们利用角分辨光电子能谱研究了EuPtP的电子结构,EuPtP在T1 = 247 K和T2 = 201 K处具有两个一级价跃迁.低于T2时,我们观察到在体Eu 4f和导带的交叉点处的能隙。带色散的形状由基于周期性安德森模型的杂化带图描述。我们的研究结果证实了EuPtP低温相的c ‐ f杂化效应。
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.