Interplay between spin-orbit interaction and stripe-type charge-orbital order of IrTe2
Interplay between spin-orbit interaction and stripe-type charge-orbital order of IrTe2
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DOI：
10.1016/j.jpcs.2018.02.015
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发表时间：
2019
影响因子：
4
通讯作者：
D. Ootsuki;H. Ishii;K. Kudo;M. Nohara;M. Arita;H. Namatame;M. Taniguchi;N. Saini;T. Mizokawa
中科院分区：
文献类型：
--
作者：
D. Ootsuki;H. Ishii;K. Kudo;M. Nohara;M. Arita;H. Namatame;M. Taniguchi;N. Saini;T. Mizokawa
用角分辨光电子能谱研究了IrTe_2的条纹型电荷轨道有序相的电子结构。在布里渊区边界处的电子口袋和围绕其中心的空穴费米表面被清楚地观察到与带状电荷轨道有序相的能带结构计算一致。本研究表明，即使在电荷-轨道有序下，由于Te 5 p自旋-轨道的强耦合，空穴和电子的费米面也可以存活。Te 5的参与者的导带提供了一个有趣的相互作用之间的电荷-轨道秩序和自旋-轨道相互作用IrTe 2。
We have studied the electronic structure of the stripe-type charge-orbital ordered phase of IrTe2by means of angle-resolved photoemission spectroscopy. An electron pocket at the Brillouin zone boundary and hole Fermi surfaces around its center are clearly observed in agreement with the band structure calculation for the stripe-type charge-orbital ordered phase. The present study indicates that the hole and electron Fermi surfaces can survive due to the strong Te 5pspin-orbit coupling even under the charge-orbital order. The participant of the Te 5porbitals to the conduction band provides an interesting interplay between the charge-orbital order and the spin-orbit interaction in IrTe2.