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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spelling	oai:doaj.org-article:a23a4c20cffd442ea965fb84a7a318122021-12-02T14:29:04ZDirect observation of kink evolution due to Hund’s coupling on approach to metal-insulator transition in NiS2−x Se x10.1038/s41467-021-21460-52041-1723https://doaj.org/article/a23a4c20cffd442ea965fb84a7a318122021-02-01T00:00:00Zhttps://doi.org/10.1038/s41467-021-21460-5https://doaj.org/toc/2041-1723A 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.Bo Gyu JangGaram HanIna ParkDongwook KimYoon Young KohYeongkwan KimWonshik KyungHyeong-Do KimCheng-Maw ChengKu-Ding TsueiKyung Dong LeeNamjung HurJi Hoon ShimChangyoung KimGabriel KotliarNature PortfolioarticleScienceQENNature Communications, Vol 12, Iss 1, Pp 1-7 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Science Q
spellingShingle	Science Q 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 Direct observation of kink evolution due to Hund’s coupling on approach to metal-insulator transition in NiS2−x Se x
description	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.
format	article
author	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
author_facet	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
author_sort	Bo Gyu Jang
title	Direct observation of kink evolution due to Hund’s coupling on approach to metal-insulator transition in NiS2−x Se x
title_short	Direct observation of kink evolution due to Hund’s coupling on approach to metal-insulator transition in NiS2−x Se x
title_full	Direct observation of kink evolution due to Hund’s coupling on approach to metal-insulator transition in NiS2−x Se x
title_fullStr	Direct observation of kink evolution due to Hund’s coupling on approach to metal-insulator transition in NiS2−x Se x
title_full_unstemmed	Direct observation of kink evolution due to Hund’s coupling on approach to metal-insulator transition in NiS2−x Se x
title_sort	direct observation of kink evolution due to hund’s coupling on approach to metal-insulator transition in nis2−x se x
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/a23a4c20cffd442ea965fb84a7a31812
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Direct observation of kink evolution due to Hund’s coupling on approach to metal-insulator transition in NiS2−x Se x

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