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author:

Ni, Yan (Ni, Yan.) [1] | Guo, Yongxiang (Guo, Yongxiang.) [2] | Jiang, Yuan-Yuan (Jiang, Yuan-Yuan.) [3] | Huang, Ting (Huang, Ting.) [4] | Mu, Qiuxuan (Mu, Qiuxuan.) [5] | Hou, Feiyan (Hou, Feiyan.) [6] | Li, Tiaoyang (Li, Tiaoyang.) [7] | Wang, Shaohao (Wang, Shaohao.) [8] (Scholars:王少昊) | Zhang, Zhen (Zhang, Zhen.) [9] | Shao, Dingfu (Shao, Dingfu.) [10] | Ding, Xiangdong (Ding, Xiangdong.) [11] | Min, Tai (Min, Tai.) [12] | Li, Tao (Li, Tao.) [13]

Indexed by:

EI Scopus SCIE

Abstract:

Chiral noncollinear magnetic nanostructures, such as skyrmions, are intriguing spin configurations with significant potential for magnetic memory technologies. However, the limited availability of 2D magnetic materials that host skyrmions with Curie temperatures above room temperature presents a major challenge for practical implementation. Chromium tellurides exhibit diverse spin configurations and remarkable stability under ambient conditions, making them a promising platform for fundamental spin physics research and the development of innovative 2D spintronic devices. Here, domain structures of Cr0.85Te nanoflakes synthesized via chemical vapor deposition are investigated, using magnetic force microscopy at room temperature. The results reveal that the domain width of the as-grown nanoflakes scales with the square root of their thicknesses. Notably, the emergence and annihilation of skyrmions are observed, which can be reversibly controlled by external magnetic fields and thermal excitation in ambient air. Micromagnetic simulations suggest that the emergence of skyrmions in Cr0.85Te nanoflakes arises from inversion symmetry breaking due to compositional gradients across the sample thickness, rather than the interfacial Dzyaloshinskii-Moriya interaction. These findings provide new insights into the mechanisms underlying skyrmion formation in 2D ferromagnets and open exciting possibilities for manipulating domain structures at room temperature, offering practical pathways for developing next-generation spintronic devices.

Keyword:

Cr0.85Te nanoflakes magnetic domain evolution magnetic force microscopy room temperature 2D ferromagnetic skyrmions

Community:

  • [ 1 ] [Ni, Yan]Xi An Jiao Tong Univ, Ctr Spintron & Quantum Syst, Sch Mat Sci & Engn, State Key Lab Mech Behav Mat, Xian 710049, Shaanxi, Peoples R China
  • [ 2 ] [Guo, Yongxiang]Xi An Jiao Tong Univ, Ctr Spintron & Quantum Syst, Sch Mat Sci & Engn, State Key Lab Mech Behav Mat, Xian 710049, Shaanxi, Peoples R China
  • [ 3 ] [Huang, Ting]Xi An Jiao Tong Univ, Ctr Spintron & Quantum Syst, Sch Mat Sci & Engn, State Key Lab Mech Behav Mat, Xian 710049, Shaanxi, Peoples R China
  • [ 4 ] [Mu, Qiuxuan]Xi An Jiao Tong Univ, Ctr Spintron & Quantum Syst, Sch Mat Sci & Engn, State Key Lab Mech Behav Mat, Xian 710049, Shaanxi, Peoples R China
  • [ 5 ] [Hou, Feiyan]Xi An Jiao Tong Univ, Ctr Spintron & Quantum Syst, Sch Mat Sci & Engn, State Key Lab Mech Behav Mat, Xian 710049, Shaanxi, Peoples R China
  • [ 6 ] [Min, Tai]Xi An Jiao Tong Univ, Ctr Spintron & Quantum Syst, Sch Mat Sci & Engn, State Key Lab Mech Behav Mat, Xian 710049, Shaanxi, Peoples R China
  • [ 7 ] [Li, Tao]Xi An Jiao Tong Univ, Ctr Spintron & Quantum Syst, Sch Mat Sci & Engn, State Key Lab Mech Behav Mat, Xian 710049, Shaanxi, Peoples R China
  • [ 8 ] [Jiang, Yuan-Yuan]Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, HFIPS, Hefei 230031, Peoples R China
  • [ 9 ] [Shao, Dingfu]Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, HFIPS, Hefei 230031, Peoples R China
  • [ 10 ] [Jiang, Yuan-Yuan]Univ Sci & Technol China, Hefei 230026, Peoples R China
  • [ 11 ] [Hou, Feiyan]Shanxi Univ, State Key Lab Quantum Opt & Quantum Opt Devices, Taiyuan 030006, Peoples R China
  • [ 12 ] [Li, Tiaoyang]Fuzhou Univ, Jinjiang Joint Inst Microelect, Coll Phys & Informat Engn, Fuzhou 350108, Peoples R China
  • [ 13 ] [Wang, Shaohao]Fuzhou Univ, FZU Jinjiang Joint Inst Microelect, Jinjiang Campus, Jinjiang 362200, Peoples R China
  • [ 14 ] [Zhang, Zhen]Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
  • [ 15 ] [Ding, Xiangdong]Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
  • [ 16 ] [Min, Tai]Nanjing Univ, Sch Mat Sci & Intelligent Engn, Suzhou 215163, Peoples R China

Reprint 's Address:

  • [Min, Tai]Xi An Jiao Tong Univ, Ctr Spintron & Quantum Syst, Sch Mat Sci & Engn, State Key Lab Mech Behav Mat, Xian 710049, Shaanxi, Peoples R China;;[Li, Tao]Xi An Jiao Tong Univ, Ctr Spintron & Quantum Syst, Sch Mat Sci & Engn, State Key Lab Mech Behav Mat, Xian 710049, Shaanxi, Peoples R China;;[Min, Tai]Nanjing Univ, Sch Mat Sci & Intelligent Engn, Suzhou 215163, Peoples R China

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Source :

SMALL

ISSN: 1613-6810

Year: 2024

Issue: 5

Volume: 21

1 3 . 0 0 0

JCR@2023

Cited Count:

WoS CC Cited Count: 1

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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