Nature Materials, volume 9, issue 7, pages 579-585

Robust isothermal electric control of exchange bias at room temperature

Xi He 1
Yi Wang 1
Ning Wu 1
Anthony N Caruso 2
Elio Vescovo 3
KIRILL D. BELASHCHENKO 1
Peter A. Dowben 1
Christian Binek 1
Publication typeJournal Article
Publication date2010-06-20
Journal: Nature Materials
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor41.2
ISSN14761122, 14764660
General Chemistry
Condensed Matter Physics
General Materials Science
Mechanical Engineering
Mechanics of Materials
Abstract
Voltage-controlled spin electronics is crucial for continued progress in information technology. It aims at reduced power consumption, increased integration density and enhanced functionality where non-volatile memory is combined with high-speed logical processing. Promising spintronic device concepts use the electric control of interface and surface magnetization. From the combination of magnetometry, spin-polarized photoemission spectroscopy, symmetry arguments and first-principles calculations, we show that the (0001) surface of magnetoelectric Cr2O3 has a roughness-insensitive, electrically switchable magnetization. Using a ferromagnetic Pd/Co multilayer deposited on the (0001) surface of a Cr2O3 single crystal, we achieve reversible, room-temperature isothermal switching of the exchange-bias field between positive and negative values by reversing the electric field while maintaining a permanent magnetic field. This effect reflects the switching of the bulk antiferromagnetic domain state and the interface magnetization coupled to it. The switchable exchange bias sets in exactly at the bulk Néel temperature. The control of magnetic properties by electric fields is key to realizing spintronics devices. The surface of the antiferromagnetic magnetoelectric Cr2O3 is now shown to exhibit room-temperature ferromagnetism, whose direction can be switched by an electric field. This magnetization switches the exchange-bias field with magnetic multilayers grown on Cr2O3, promising a new route towards room-temperature spintronics devices.

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GOST |
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He X. et al. Robust isothermal electric control of exchange bias at room temperature // Nature Materials. 2010. Vol. 9. No. 7. pp. 579-585.
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He X., Wang Y., Wu N., Caruso A. N., Vescovo E., BELASHCHENKO K. D., Dowben P. A., Binek C. Robust isothermal electric control of exchange bias at room temperature // Nature Materials. 2010. Vol. 9. No. 7. pp. 579-585.
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RIS Copy
TY - JOUR
DO - 10.1038/nmat2785
UR - https://www.nature.com/articles/nmat2785
TI - Robust isothermal electric control of exchange bias at room temperature
T2 - Nature Materials
AU - He, Xi
AU - Wu, Ning
AU - Caruso, Anthony N
AU - Vescovo, Elio
AU - BELASHCHENKO, KIRILL D.
AU - Dowben, Peter A.
AU - Binek, Christian
AU - Wang, Yi
PY - 2010
DA - 2010/06/20
PB - Springer Nature
SP - 579-585
IS - 7
VL - 9
SN - 1476-1122
SN - 1476-4660
ER -
BibTex |
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BibTex Copy
@article{2010_He,
author = {Xi He and Ning Wu and Anthony N Caruso and Elio Vescovo and KIRILL D. BELASHCHENKO and Peter A. Dowben and Christian Binek and Yi Wang},
title = {Robust isothermal electric control of exchange bias at room temperature},
journal = {Nature Materials},
year = {2010},
volume = {9},
publisher = {Springer Nature},
month = {jun},
url = {https://www.nature.com/articles/nmat2785},
number = {7},
pages = {579--585},
doi = {10.1038/nmat2785}
}
MLA
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MLA Copy
He, Xi, et al. “Robust isothermal electric control of exchange bias at room temperature.” Nature Materials, vol. 9, no. 7, Jun. 2010, pp. 579-585. https://www.nature.com/articles/nmat2785.
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