Open Access
Nature Communications, volume 12, issue 1, publication number 4576
Large linear non-saturating magnetoresistance and high mobility in ferromagnetic MnBi
He Y.
1
,
Gayles Jacob
1, 2
,
Yao Mengyu
1
,
Helm Toni
1, 3
,
Reimann T.
3
,
Schnelle Walter
1
,
Nicklas M
1
,
Sun Yan
1
,
FECHER GERHARD H.
1
,
Felser Claudia
1
1
Max-Planck-Institute for Chemical Physics of Solids, Dresden, Germany
|
2
Department of Physics, University of South Florida, Tampa, USA
|
Publication type: Journal Article
Publication date: 2021-07-28
Journal:
Nature Communications
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor: 16.6
ISSN: 20411723
PubMed ID:
34321475
General Chemistry
General Biochemistry, Genetics and Molecular Biology
General Physics and Astronomy
Abstract
A large non-saturating magnetoresistance has been observed in several nonmagnetic topological Weyl semi-metals with high mobility of charge carriers at the Fermi energy. However, ferromagnetic systems rarely display a large magnetoresistance because of localized electrons in heavy d bands with a low Fermi velocity. Here, we report a large linear non-saturating magnetoresistance and high mobility in ferromagnetic MnBi. MnBi, unlike conventional ferromagnets, exhibits a large linear non-saturating magnetoresistance of 5000% under a pulsed field of 70 T. The electrons and holes’ mobilities are both 5000 cm2V−1s−1 at 2 K, which are one of the highest for ferromagnetic materials. These phenomena are due to the spin-polarised Bi 6p band’s sharp dispersion with a small effective mass. Our study provides an approach to achieve high mobility in ferromagnetic systems with a high Curie temperature, which is advantageous for topological spintronics. Ferromagnetic systems rarely display a large or non-saturating magnetoresistance, due to the low Fermi velocity of the predominant charge carrier. Here, the authors show that MnBi, a ferromagnet, bucks this trend, showing both large and non-saturating magnetoresistance, and high charge carrier motilities.
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- We do not take into account publications that without a DOI.
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- Statistics recalculated weekly.
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He Y. et al. Large linear non-saturating magnetoresistance and high mobility in ferromagnetic MnBi // Nature Communications. 2021. Vol. 12. No. 1. 4576
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He Y., Gayles J., Yao M., Helm T., Reimann T., Strocov V. N., Schnelle W., Nicklas M., Sun Y., FECHER G. H., Felser C. Large linear non-saturating magnetoresistance and high mobility in ferromagnetic MnBi // Nature Communications. 2021. Vol. 12. No. 1. 4576
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TY - JOUR
DO - 10.1038/s41467-021-24692-7
UR - https://doi.org/10.1038%2Fs41467-021-24692-7
TI - Large linear non-saturating magnetoresistance and high mobility in ferromagnetic MnBi
T2 - Nature Communications
AU - Helm, Toni
AU - Schnelle, Walter
AU - Sun, Yan
AU - FECHER, GERHARD H.
AU - Felser, Claudia
AU - He, Y.
AU - Gayles, Jacob
AU - Yao, Mengyu
AU - Reimann, T.
AU - Strocov, Vladimir N.
AU - Nicklas, M
PY - 2021
DA - 2021/07/28 00:00:00
PB - Springer Nature
IS - 1
VL - 12
PMID - 34321475
SN - 2041-1723
ER -
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@article{2021_He,
author = {Toni Helm and Walter Schnelle and Yan Sun and GERHARD H. FECHER and Claudia Felser and Y. He and Jacob Gayles and Mengyu Yao and T. Reimann and Vladimir N. Strocov and M Nicklas},
title = {Large linear non-saturating magnetoresistance and high mobility in ferromagnetic MnBi},
journal = {Nature Communications},
year = {2021},
volume = {12},
publisher = {Springer Nature},
month = {jul},
url = {https://doi.org/10.1038%2Fs41467-021-24692-7},
number = {1},
doi = {10.1038/s41467-021-24692-7}
}