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강상관계 물질 연구단
강상관계 물질 연구단
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Linear Magnetoelectric Phase in Ultrathin MnPS_{3} Probed by Optical Second Harmonic Generation

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Title
Linear Magnetoelectric Phase in Ultrathin MnPS_{3} Probed by Optical Second Harmonic Generation
Author(s)
Hao Chu; Chang Jae Roh; Joshua O. Island; Chen Li; Sungmin Lee; Jingjing Chen; Je-Geun Park; Andrea F. Young; Jong Seok Lee; David Hsieh
Publication Date
2020-01
Journal
PHYSICAL REVIEW LETTERS, v.124, no.2, pp.027601 -
Publisher
AMER PHYSICAL SOC
Abstract
The transition metal thiophosphates MPS_{3} (M=Mn, Fe, Ni) are a class of van der Waals stacked insulating antiferromagnets that can be exfoliated down to the ultrathin limit. MnPS_{3} is particularly interesting because its Néel ordered state breaks both spatial-inversion and time-reversal symmetries, allowing for a linear magnetoelectric phase that is rare among van der Waals materials. However, it is unknown whether this unique magnetic structure of bulk MnPS_{3} remains stable in the ultrathin limit. Using optical second harmonic generation rotational anisotropy, we show that long-range linear magnetoelectric type Néel order in MnPS_{3} persists down to at least 5.3 nm thickness. However an unusual mirror symmetry breaking develops in ultrathin samples on SiO_{2} substrates that is absent in bulk materials, which is likely related to substrate induced strain. © 2020 American Physical Society
URI
https://pr.ibs.re.kr/handle/8788114/7029
ISSN
0031-9007
Appears in Collections:
Center for Correlated Electron Systems(강상관계 물질 연구단) > Journal Papers (저널논문)
Files in This Item:
71322_Linear Magnetoelectric Phase in Ultrathin MnPS_{3} Probed by Optical Second Harmonic Generation.pdfDownload

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