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Title: Linearly aligned single-chiral vortices in hexagonal manganites by in situ electric arc heating

Nanoscale topological defects, such as vortices and skyrmions in ferroic systems, have been intensively investigated due to their intriguing properties and behaviors. In addition to harnessing and tuning their functionalities, spatial manipulation and control of topological defects as functional elements are important for future nanotechnologies. Here in this paper, we report a linear alignment behavior of single-chiral vortices observed in thin transmission electron microscopy samples of multiferroic hexagonal manganites during an in situ heating experiment. In order to avoid chemical degradation during high-temperature heating in vacuum, we have utilized a rapid heating and quenching by in situ electric arcing. Using atomic resolution electron microscopy and phase-field simulation, we found that vortices and antivortices formed near the phase transition temperature are pulled out in the opposite directions by mechanical strain to leave single-chiral vortices linearly aligned along an isothermal line formed during quenching. In conclusion, Oour study provides important insight into spatial manipulation of the topological defects in oxide multiferroics by investigating far-equilibrium dynamics of symmetry-breaking continuous phase transitions.
Authors:
ORCiD logo [1] ;  [1] ;  [2] ;  [3] ;  [1] ;  [1] ;  [2] ;  [3] ;  [1]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States). Condensed Matter Physics and Materials Science Dept.
  2. Pennsylvania State Univ., University Park, PA (United States). Dept of Materials Science & Engineering
  3. Rutgers Univ., Piscataway, NJ (United States). Rutgers Center for Emergent Materials and Dept. of Physics & Astronomy
Publication Date:
Report Number(s):
BNL-207990-2018-JAAM
Journal ID: ISSN 2475-9953; PRMHAR
Grant/Contract Number:
SC0012704; FG02-07ER46417
Type:
Accepted Manuscript
Journal Name:
Physical Review Materials
Additional Journal Information:
Journal Volume: 2; Journal Issue: 6; Journal ID: ISSN 2475-9953
Publisher:
American Physical Society (APS)
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
OSTI Identifier:
1466586
Alternate Identifier(s):
OSTI ID: 1457206

Han, Myung-Geun, Li, Jun, Xue, Fei, Wang, Xueyun, Meng, Qing-Ping, Tao, Jing, Chen, Long-Qing, Cheong, Sang-Wook, and Zhu, Yimei. Linearly aligned single-chiral vortices in hexagonal manganites by insitu electric arc heating. United States: N. p., Web. doi:10.1103/PhysRevMaterials.2.064004.
Han, Myung-Geun, Li, Jun, Xue, Fei, Wang, Xueyun, Meng, Qing-Ping, Tao, Jing, Chen, Long-Qing, Cheong, Sang-Wook, & Zhu, Yimei. Linearly aligned single-chiral vortices in hexagonal manganites by insitu electric arc heating. United States. doi:10.1103/PhysRevMaterials.2.064004.
Han, Myung-Geun, Li, Jun, Xue, Fei, Wang, Xueyun, Meng, Qing-Ping, Tao, Jing, Chen, Long-Qing, Cheong, Sang-Wook, and Zhu, Yimei. 2018. "Linearly aligned single-chiral vortices in hexagonal manganites by insitu electric arc heating". United States. doi:10.1103/PhysRevMaterials.2.064004.
@article{osti_1466586,
title = {Linearly aligned single-chiral vortices in hexagonal manganites by insitu electric arc heating},
author = {Han, Myung-Geun and Li, Jun and Xue, Fei and Wang, Xueyun and Meng, Qing-Ping and Tao, Jing and Chen, Long-Qing and Cheong, Sang-Wook and Zhu, Yimei},
abstractNote = {Nanoscale topological defects, such as vortices and skyrmions in ferroic systems, have been intensively investigated due to their intriguing properties and behaviors. In addition to harnessing and tuning their functionalities, spatial manipulation and control of topological defects as functional elements are important for future nanotechnologies. Here in this paper, we report a linear alignment behavior of single-chiral vortices observed in thin transmission electron microscopy samples of multiferroic hexagonal manganites during an in situ heating experiment. In order to avoid chemical degradation during high-temperature heating in vacuum, we have utilized a rapid heating and quenching by in situ electric arcing. Using atomic resolution electron microscopy and phase-field simulation, we found that vortices and antivortices formed near the phase transition temperature are pulled out in the opposite directions by mechanical strain to leave single-chiral vortices linearly aligned along an isothermal line formed during quenching. In conclusion, Oour study provides important insight into spatial manipulation of the topological defects in oxide multiferroics by investigating far-equilibrium dynamics of symmetry-breaking continuous phase transitions.},
doi = {10.1103/PhysRevMaterials.2.064004},
journal = {Physical Review Materials},
number = 6,
volume = 2,
place = {United States},
year = {2018},
month = {6}
}

Works referenced in this record:

Ordering, metastability and phase transitions in two-dimensional systems
journal, April 1973
  • Kosterlitz, J M; Thouless, D J
  • Journal of Physics C: Solid State Physics, Vol. 6, Issue 7, p. 1181-1203
  • DOI: 10.1088/0022-3719/6/7/010