Dielectric response in the antiferromagnetic phase of Fe1.10Te

Yokoi, Kazuoki; Miyazaki, Issei; Ichimura, Koichi; Tanda, Satoshi; Matsunaga, Noriaki; Kurosawa, Tohru; Oda, Migaku

Dielectric response in the antiferromagnetic phase of Fe1.10Te

Yokoi, Kazuoki; Miyazaki, Issei; Ichimura, Koichi et al.

Solid state communications, 2023, 371, 115262

Permalink : https://hdl.handle.net/2115/95553

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アクセス権	open access
URI	https://hdl.handle.net/2115/95553
タイトル	Dielectric response in the antiferromagnetic phase of Fe1.10Te
著者	Yokoi, Kazuoki ; Miyazaki, Issei ; Ichimura, Koichi ; Tanda, Satoshi ; Matsunaga, Noriaki ; Kurosawa, Tohru ; Oda, Migaku
著者名 Yokoi, Kazuoki
著者名 Miyazaki, Issei
e-Rad_Researcher 50261277 著者名 Ichimura, Koichi
e-Rad_Researcher 80217215 著者名 Tanda, Satoshi
e-Rad_Researcher 10222308 著者名 Matsunaga, Noriaki
e-Rad_Researcher 10615420 著者名 Kurosawa, Tohru
e-Rad_Researcher 70204211 著者名 Oda, Migaku
言語	英語
キーワード	Iron-based superconductor
	Fe1+xTe
	STM
	Dielectric response
	Charge fluctuation
発行日	2023-10-01
出版者	Elsevier
収録物名	Solid state communications
巻(号)	371
ページ	115262
抄録	Fe1.10Te was studied by scanning tunneling microscopy (STM) and dielectric response to elucidate the charge fluctuation. The cleaved a -b surface was clearly imaged by UHV-STM at T = 8.3 K. From the line profiles, each Fe site was thought to be equivalent suggesting no static charge order in the antiferromagnetic phase. The tem-perature dependence of the dielectric permittivity was obtained by measuring the complex impedance. The dielectric permittivity increased with decreasing temperature below the Neel temperature TN. The temperature dependence followed the Curie law, indicating the paraelectric state. It suggests charges fluctuate dynamically in the antiferromagnetic state. We conclude that the dynamical charge fluctuation cooperates with the antiferro-magnetic order in Fe1.10Te.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
権利情報	© <2023>. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
PISSN	0038-1098
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1016/j.ssc.2023.115262