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Title: Proximity-driven enhanced magnetic order at ferromagnetic-insulator-magnetic-topological-insulator interface

Abstract

Magnetic exchange driven proximity effect at a magnetic-insulator–topological-insulator (MI-TI) interface provides a rich playground for novel phenomena as well as a way to realize low energy dissipation quantum devices. In this study, we report a dramatic enhancement of proximity exchange coupling in the MI/magnetic-TI EuS/Sb2–xVxTe3 hybrid heterostructure, where V doping is used to drive the TI (Sb2Te3) magnetic. We observe an artificial antiferromagneticlike structure near the MI-TI interface, which may account for the enhanced proximity coupling. The interplay between the proximity effect and doping in a hybrid heterostructure provides insights into the engineering of magnetic ordering.

Authors:
 [1];  [2];  [3];  [4];  [5];  [6];  [2];  [3];  [5];  [3];  [3];  [3]
  1. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Brookhaven National Lab., Upton, NY (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  4. National Institute of Standards and Technology, Gaithersburg, MD (United States)
  5. Northeastern Univ., Boston, MA (United States)
  6. Boston College, Chestnut Hill, MA (United States)
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1226076
Report Number(s):
BNL-108565-2015-JA
Journal ID: ISSN 0031-9007; PRLTAO; R&D Project: MA015MACA; KC0201010
Grant/Contract Number:  
SC00112704
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 115; Journal Issue: 8; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Li, Mingda, Zhu, Yimei, Chang, Cui -Zu, Kirby, B. J., Jamer, Michelle E., Cui, Wenping, Wu, Lijun, Wei, Peng, Heiman, Don, Li, Ju, Moodera, Jagadeesh S., and Katmis, Ferhat. Proximity-driven enhanced magnetic order at ferromagnetic-insulator-magnetic-topological-insulator interface. United States: N. p., 2015. Web. doi:10.1103/PhysRevLett.115.087201.
Li, Mingda, Zhu, Yimei, Chang, Cui -Zu, Kirby, B. J., Jamer, Michelle E., Cui, Wenping, Wu, Lijun, Wei, Peng, Heiman, Don, Li, Ju, Moodera, Jagadeesh S., & Katmis, Ferhat. Proximity-driven enhanced magnetic order at ferromagnetic-insulator-magnetic-topological-insulator interface. United States. https://doi.org/10.1103/PhysRevLett.115.087201
Li, Mingda, Zhu, Yimei, Chang, Cui -Zu, Kirby, B. J., Jamer, Michelle E., Cui, Wenping, Wu, Lijun, Wei, Peng, Heiman, Don, Li, Ju, Moodera, Jagadeesh S., and Katmis, Ferhat. Mon . "Proximity-driven enhanced magnetic order at ferromagnetic-insulator-magnetic-topological-insulator interface". United States. https://doi.org/10.1103/PhysRevLett.115.087201. https://www.osti.gov/servlets/purl/1226076.
@article{osti_1226076,
title = {Proximity-driven enhanced magnetic order at ferromagnetic-insulator-magnetic-topological-insulator interface},
author = {Li, Mingda and Zhu, Yimei and Chang, Cui -Zu and Kirby, B. J. and Jamer, Michelle E. and Cui, Wenping and Wu, Lijun and Wei, Peng and Heiman, Don and Li, Ju and Moodera, Jagadeesh S. and Katmis, Ferhat},
abstractNote = {Magnetic exchange driven proximity effect at a magnetic-insulator–topological-insulator (MI-TI) interface provides a rich playground for novel phenomena as well as a way to realize low energy dissipation quantum devices. In this study, we report a dramatic enhancement of proximity exchange coupling in the MI/magnetic-TI EuS/Sb2–xVxTe3 hybrid heterostructure, where V doping is used to drive the TI (Sb2Te3) magnetic. We observe an artificial antiferromagneticlike structure near the MI-TI interface, which may account for the enhanced proximity coupling. The interplay between the proximity effect and doping in a hybrid heterostructure provides insights into the engineering of magnetic ordering.},
doi = {10.1103/PhysRevLett.115.087201},
journal = {Physical Review Letters},
number = 8,
volume = 115,
place = {United States},
year = {Mon Aug 17 00:00:00 EDT 2015},
month = {Mon Aug 17 00:00:00 EDT 2015}
}

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