Interfacial control of Dzyaloshinskii-Moriya interaction in heavy metal/ferromagnetic metal thin film heterostructures
Abstract
The interfacial Dzyaloshinskii-Moriya interaction (DMI) in ultrathin magnetic thin film heterostructures provides a new approach for controlling spin textures on mesoscopic length scales. Here we investigate the dependence of the interfacial DMI constant D on a Pt wedge insertion layer in Ta/CoFeB/Pt(wedge)/MgO thin films by observing the asymmetric spin-wave dispersion using Brillouin light scattering. Continuous tuning of D by more than a factor of 3 is realized by inserting less than one monolayer of Pt. The observations in this work provide new insights for designing magnetic thin film heterostructures with tailored D for controlling skyrmions and magnetic domain-wall chirality and dynamics.
- Authors:
-
- Univ. of Texas, Austin, TX (United States)
- Univ. of California, Los Angeles, CA (United States)
- Univ. of Delaware, Newark, DE (United States)
- Publication Date:
- Research Org.:
- Energy Frontier Research Centers (EFRC) (United States). Spins and Heat in Nanoscale Electronic Systems (SHINES)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
- OSTI Identifier:
- 1388922
- Alternate Identifier(s):
- OSTI ID: 1333590
- Grant/Contract Number:
- SC0012670; 1505192
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- Physical Review B
- Additional Journal Information:
- Journal Volume: 94; Journal Issue: 18; Related Information: SHINES partners with University of California, Riverside (lead); Arizona State University; Colorado State University; Johns Hopkins University; University of California Irvine; University of California Los Angeles; University of Texas at Austin; Journal ID: ISSN 2469-9950
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; phonons; thermal conductivity; thermoelectric; spin dynamics; spintronics
Citation Formats
Ma, Xin, Yu, Guoqiang, Li, Xiang, Wang, Tao, Wu, Di, Olsson, Kevin S., Chu, Zhaodong, An, Kyongmo, Xiao, John Q., Wang, Kang L., and Li, Xiaoqin. Interfacial control of Dzyaloshinskii-Moriya interaction in heavy metal/ferromagnetic metal thin film heterostructures. United States: N. p., 2016.
Web. doi:10.1103/physrevb.94.180408.
Ma, Xin, Yu, Guoqiang, Li, Xiang, Wang, Tao, Wu, Di, Olsson, Kevin S., Chu, Zhaodong, An, Kyongmo, Xiao, John Q., Wang, Kang L., & Li, Xiaoqin. Interfacial control of Dzyaloshinskii-Moriya interaction in heavy metal/ferromagnetic metal thin film heterostructures. United States. https://doi.org/10.1103/physrevb.94.180408
Ma, Xin, Yu, Guoqiang, Li, Xiang, Wang, Tao, Wu, Di, Olsson, Kevin S., Chu, Zhaodong, An, Kyongmo, Xiao, John Q., Wang, Kang L., and Li, Xiaoqin. 2016.
"Interfacial control of Dzyaloshinskii-Moriya interaction in heavy metal/ferromagnetic metal thin film heterostructures". United States. https://doi.org/10.1103/physrevb.94.180408. https://www.osti.gov/servlets/purl/1388922.
@article{osti_1388922,
title = {Interfacial control of Dzyaloshinskii-Moriya interaction in heavy metal/ferromagnetic metal thin film heterostructures},
author = {Ma, Xin and Yu, Guoqiang and Li, Xiang and Wang, Tao and Wu, Di and Olsson, Kevin S. and Chu, Zhaodong and An, Kyongmo and Xiao, John Q. and Wang, Kang L. and Li, Xiaoqin},
abstractNote = {The interfacial Dzyaloshinskii-Moriya interaction (DMI) in ultrathin magnetic thin film heterostructures provides a new approach for controlling spin textures on mesoscopic length scales. Here we investigate the dependence of the interfacial DMI constant D on a Pt wedge insertion layer in Ta/CoFeB/Pt(wedge)/MgO thin films by observing the asymmetric spin-wave dispersion using Brillouin light scattering. Continuous tuning of D by more than a factor of 3 is realized by inserting less than one monolayer of Pt. The observations in this work provide new insights for designing magnetic thin film heterostructures with tailored D for controlling skyrmions and magnetic domain-wall chirality and dynamics.},
doi = {10.1103/physrevb.94.180408},
url = {https://www.osti.gov/biblio/1388922},
journal = {Physical Review B},
issn = {2469-9950},
number = 18,
volume = 94,
place = {United States},
year = {Mon Nov 28 00:00:00 EST 2016},
month = {Mon Nov 28 00:00:00 EST 2016}
}
Web of Science
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