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.

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Auteurs principaux: 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
Langue:EN
Publié: Nature Portfolio 2021
Sujets:
Science
Q
Accès en ligne:https://doaj.org/article/a23a4c20cffd442ea965fb84a7a31812
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Internet

https://doaj.org/article/a23a4c20cffd442ea965fb84a7a31812

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