Phase-controllable growth of ultrathin 2D magnetic FeTe crystals

Lixing Kang; Chen Ye; Xiaoxu Zhao; Xieyu Zhou; Junxiong Hu; Qiao Li; Dan Liu; Chandreyee Manas Das; Jiefu Yang; Dianyi Hu; Jieqiong Chen; Xun Cao; Yong Zhang; Manzhang Xu; Jun Di; Dan Tian; Pin Song; Govindan Kutty; Qingsheng Zeng; Qundong Fu; Ya Deng; Jiadong Zhou; Ariando Ariando; Feng Miao; Guo Hong; Yizhong Huang; Stephen J. Pennycook; Ken Tye Yong; Wei Ji; Xiao Renshaw Wang; Zheng Liu

doi:10.1038/s41467-020-17253-x

Phase-controllable growth of ultrathin 2D magnetic FeTe crystals

Lixing Kang, Chen Ye, Xiaoxu Zhao, Xieyu Zhou, Junxiong Hu, Qiao Li, Dan Liu, Chandreyee Manas Das, Jiefu Yang, Dianyi Hu, Jieqiong Chen, Xun Cao, Yong Zhang, Manzhang Xu, Jun Di, Dan Tian, Pin Song, Govindan Kutty, Qingsheng Zeng, Qundong FuYa Deng, Jiadong Zhou, Ariando Ariando, Feng Miao, Guo Hong, Yizhong Huang, Stephen J. Pennycook, Ken Tye Yong^*, Wei Ji^*, Xiao Renshaw Wang^*, Zheng Liu^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

171 Citations (Scopus)

Abstract

Two-dimensional (2D) magnets with intrinsic ferromagnetic/antiferromagnetic (FM/AFM) ordering are highly desirable for future spintronic devices. However, the direct growth of their crystals is in its infancy. Here we report a chemical vapor deposition approach to controllably grow layered tetragonal and non-layered hexagonal FeTe nanoplates with their thicknesses down to 3.6 and 2.8 nm, respectively. Moreover, transport measurements reveal these obtained FeTe nanoflakes show a thickness-dependent magnetic transition. Antiferromagnetic tetragonal FeTe with the Néel temperature (T_N) gradually decreases from 70 to 45 K as the thickness declines from 32 to 5 nm. And ferromagnetic hexagonal FeTe is accompanied by a drop of the Curie temperature (T_C) from 220 K (30 nm) to 170 K (4 nm). Theoretical calculations indicate that the ferromagnetic order in hexagonal FeTe is originated from its concomitant lattice distortion and Stoner instability. This study highlights its potential applications in future spintronic devices.

Original language	English
Article number	3729
Journal	Nature Communications
Volume	11
Issue number	1
DOIs	https://doi.org/10.1038/s41467-020-17253-x
Publication status	Published - 1 Dec 2020
Externally published	Yes

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@article{72eb47bbc67b4f048030c0c04111aff7,

title = "Phase-controllable growth of ultrathin 2D magnetic FeTe crystals",

abstract = "Two-dimensional (2D) magnets with intrinsic ferromagnetic/antiferromagnetic (FM/AFM) ordering are highly desirable for future spintronic devices. However, the direct growth of their crystals is in its infancy. Here we report a chemical vapor deposition approach to controllably grow layered tetragonal and non-layered hexagonal FeTe nanoplates with their thicknesses down to 3.6 and 2.8 nm, respectively. Moreover, transport measurements reveal these obtained FeTe nanoflakes show a thickness-dependent magnetic transition. Antiferromagnetic tetragonal FeTe with the N{\'e}el temperature (TN) gradually decreases from 70 to 45 K as the thickness declines from 32 to 5 nm. And ferromagnetic hexagonal FeTe is accompanied by a drop of the Curie temperature (TC) from 220 K (30 nm) to 170 K (4 nm). Theoretical calculations indicate that the ferromagnetic order in hexagonal FeTe is originated from its concomitant lattice distortion and Stoner instability. This study highlights its potential applications in future spintronic devices.",

author = "Lixing Kang and Chen Ye and Xiaoxu Zhao and Xieyu Zhou and Junxiong Hu and Qiao Li and Dan Liu and Das, {Chandreyee Manas} and Jiefu Yang and Dianyi Hu and Jieqiong Chen and Xun Cao and Yong Zhang and Manzhang Xu and Jun Di and Dan Tian and Pin Song and Govindan Kutty and Qingsheng Zeng and Qundong Fu and Ya Deng and Jiadong Zhou and Ariando Ariando and Feng Miao and Guo Hong and Yizhong Huang and Pennycook, {Stephen J.} and Yong, {Ken Tye} and Wei Ji and {Renshaw Wang}, Xiao and Zheng Liu",

note = "Publisher Copyright: {\textcopyright} 2020, The Author(s).",

year = "2020",

month = dec,

day = "1",

doi = "10.1038/s41467-020-17253-x",

language = "English",

volume = "11",

journal = "Nature Communications",

issn = "2041-1723",

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Kang, L, Ye, C, Zhao, X, Zhou, X, Hu, J, Li, Q, Liu, D, Das, CM, Yang, J, Hu, D, Chen, J, Cao, X, Zhang, Y, Xu, M, Di, J, Tian, D, Song, P, Kutty, G, Zeng, Q, Fu, Q, Deng, Y, Zhou, J, Ariando, A, Miao, F, Hong, G, Huang, Y, Pennycook, SJ, Yong, KT, Ji, W, Renshaw Wang, X & Liu, Z 2020, 'Phase-controllable growth of ultrathin 2D magnetic FeTe crystals', Nature Communications, vol. 11, no. 1, 3729. https://doi.org/10.1038/s41467-020-17253-x

TY - JOUR

T1 - Phase-controllable growth of ultrathin 2D magnetic FeTe crystals

AU - Kang, Lixing

AU - Ye, Chen

AU - Zhao, Xiaoxu

AU - Zhou, Xieyu

AU - Hu, Junxiong

AU - Li, Qiao

AU - Liu, Dan

AU - Das, Chandreyee Manas

AU - Yang, Jiefu

AU - Hu, Dianyi

AU - Chen, Jieqiong

AU - Cao, Xun

AU - Zhang, Yong

AU - Xu, Manzhang

AU - Di, Jun

AU - Tian, Dan

AU - Song, Pin

AU - Kutty, Govindan

AU - Zeng, Qingsheng

AU - Fu, Qundong

AU - Deng, Ya

AU - Zhou, Jiadong

AU - Ariando, Ariando

AU - Miao, Feng

AU - Hong, Guo

AU - Huang, Yizhong

AU - Pennycook, Stephen J.

AU - Yong, Ken Tye

AU - Ji, Wei

AU - Renshaw Wang, Xiao

AU - Liu, Zheng

PY - 2020/12/1

Y1 - 2020/12/1

N2 - Two-dimensional (2D) magnets with intrinsic ferromagnetic/antiferromagnetic (FM/AFM) ordering are highly desirable for future spintronic devices. However, the direct growth of their crystals is in its infancy. Here we report a chemical vapor deposition approach to controllably grow layered tetragonal and non-layered hexagonal FeTe nanoplates with their thicknesses down to 3.6 and 2.8 nm, respectively. Moreover, transport measurements reveal these obtained FeTe nanoflakes show a thickness-dependent magnetic transition. Antiferromagnetic tetragonal FeTe with the Néel temperature (TN) gradually decreases from 70 to 45 K as the thickness declines from 32 to 5 nm. And ferromagnetic hexagonal FeTe is accompanied by a drop of the Curie temperature (TC) from 220 K (30 nm) to 170 K (4 nm). Theoretical calculations indicate that the ferromagnetic order in hexagonal FeTe is originated from its concomitant lattice distortion and Stoner instability. This study highlights its potential applications in future spintronic devices.

AB - Two-dimensional (2D) magnets with intrinsic ferromagnetic/antiferromagnetic (FM/AFM) ordering are highly desirable for future spintronic devices. However, the direct growth of their crystals is in its infancy. Here we report a chemical vapor deposition approach to controllably grow layered tetragonal and non-layered hexagonal FeTe nanoplates with their thicknesses down to 3.6 and 2.8 nm, respectively. Moreover, transport measurements reveal these obtained FeTe nanoflakes show a thickness-dependent magnetic transition. Antiferromagnetic tetragonal FeTe with the Néel temperature (TN) gradually decreases from 70 to 45 K as the thickness declines from 32 to 5 nm. And ferromagnetic hexagonal FeTe is accompanied by a drop of the Curie temperature (TC) from 220 K (30 nm) to 170 K (4 nm). Theoretical calculations indicate that the ferromagnetic order in hexagonal FeTe is originated from its concomitant lattice distortion and Stoner instability. This study highlights its potential applications in future spintronic devices.

UR - http://www.scopus.com/inward/record.url?scp=85088381537&partnerID=8YFLogxK

U2 - 10.1038/s41467-020-17253-x

DO - 10.1038/s41467-020-17253-x

M3 - Article

C2 - 32709904

AN - SCOPUS:85088381537

SN - 2041-1723

VL - 11

JO - Nature Communications

JF - Nature Communications

IS - 1

M1 - 3729

ER -

Phase-controllable growth of ultrathin 2D magnetic FeTe crystals

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