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Possible glass-like random singlet magnetic state in 1T-TaS2

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Title
Possible glass-like random singlet magnetic state in 1T-TaS2
Author(s)
Pal, S; Kumar, K; Sharma, R; Banerjee, A; Roy, SB; Je-Geun Park; Nigam, AK; Cheong, SW
Publication Date
2020-01
Journal
JOURNAL OF PHYSICS-CONDENSED MATTER, v.32, no.3, pp.035601 -
Publisher
IOP PUBLISHING LTD
Abstract
Two-dimensional layered transition-metal-dichalcogenide compound 1T-TaS2 shows the rare coexistence of charge density wave (CDW) and electron correlation driven Mott transition. In addition, atomic-cluster spins on the triangular lattice of the CDW state of 1T-TaS2 give rise to the possibility of the exotic spin-singlet state in which quantum fluctuations of spins are strong enough to prevent any long range magnetic ordering down to the temperature absolute zero (0 K). We present here the evidences of a glass-like random singlet magnetic state in 1T-TaS2 at low temperatures through a study of temperature and time dependence of magnetization. Comparing the experimental results with a representative canonical spin-glass system Au(1.8%Mn), we show that this glass-like state is distinctly different from the well established canonical spin-glass state. © 2019 IOP Publishing Ltd Printed in the UK
URI
https://pr.ibs.re.kr/handle/8788114/7047
ISSN
0953-8984
Appears in Collections:
Center for Correlated Electron Systems(강상관계 물질 연구단) > Journal Papers (저널논문)
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