Direct observation of kink evolution due to Hund’s coupling on approach to metal-insulator transition in NiS2−x Se x

Direct observation of kink evolution due to Hund’s coupling on approach to metal-insulator transition in NiS2−x Se x

A decisive spectroscopic evidence of the Hund’s coupling energy scale in multi-orbital correlated systems has been lacking. Here, the authors identify a kink feature due to Hund´s coupling in the spectral function of NiS2x Se x as they track its evolution across the Mott-insulator transition.

Bibliographic Details
Main Authors: Bo Gyu Jang, Garam Han, Ina Park, Dongwook Kim, Yoon Young Koh, Yeongkwan Kim, Wonshik Kyung, Hyeong-Do Kim, Cheng-Maw Cheng, Ku-Ding Tsuei, Kyung Dong Lee, Namjung Hur, Ji Hoon Shim, Changyoung Kim, Gabriel Kotliar
Format: Article
Language:English
Published: Nature Publishing Group 2021-02-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-021-21460-5

Internet

https://doi.org/10.1038/s41467-021-21460-5

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