The Mn3X family of compounds was the first in which a large anomalous Hall effect (AHE) was predicted to arise from a purely antiferromagnetic structure, due to the Berry curvature in momentum space. Nearly simultaneously with this prediction, a large AHE was observed experimentally in one of the hexagonal members of this family, Mn3Sn. Aligning antiferromagnetic domains, a necessary step for observation of the AHE, is more challenging for the cubic members of the Mn3X family, due to a combination of smaller spontaneous ferromagnetic moments and much stronger magnetic anisotropy. Here, we use a combination of uniaxial stress and applied magnetic field to align domains of bulk single-crystal Mn3Pt, and demonstrate for the first time a substantial AHE in a bulk sample of a cubic member of the Mn3X family. The AHE remains locked in with essentially no quantitative variation when the stress is ramped back to zero, which shows that it is not a consequence of any stress-induced ferromagnetic moment.
Описание
Observation of an anomalous Hall effect in single-crystal Mn3Pt
%0 Journal Article
%1 noauthororeditor
%A Zuniga-Cespedes, Belén E
%A Manna, Kaustuv
%A Noad, Hilary M L
%A Yang, Po-Ya
%A Nicklas, Michael
%A Felser, Claudia
%A Mackenzie, Andrew P
%A Hicks, Clifford W
%D 2023
%I IOP Publishing
%J New J. Phys.
%K a
%N 2
%P 023029
%R 10.1088/1367-2630/acbc3f
%T Observation of an anomalous Hall effect in single-crystal Mn$_3$Pt
%U https://dx.doi.org/10.1088/1367-2630/acbc3f
%V 25
%X The Mn3X family of compounds was the first in which a large anomalous Hall effect (AHE) was predicted to arise from a purely antiferromagnetic structure, due to the Berry curvature in momentum space. Nearly simultaneously with this prediction, a large AHE was observed experimentally in one of the hexagonal members of this family, Mn3Sn. Aligning antiferromagnetic domains, a necessary step for observation of the AHE, is more challenging for the cubic members of the Mn3X family, due to a combination of smaller spontaneous ferromagnetic moments and much stronger magnetic anisotropy. Here, we use a combination of uniaxial stress and applied magnetic field to align domains of bulk single-crystal Mn3Pt, and demonstrate for the first time a substantial AHE in a bulk sample of a cubic member of the Mn3X family. The AHE remains locked in with essentially no quantitative variation when the stress is ramped back to zero, which shows that it is not a consequence of any stress-induced ferromagnetic moment.
@article{noauthororeditor,
abstract = {The Mn3X family of compounds was the first in which a large anomalous Hall effect (AHE) was predicted to arise from a purely antiferromagnetic structure, due to the Berry curvature in momentum space. Nearly simultaneously with this prediction, a large AHE was observed experimentally in one of the hexagonal members of this family, Mn3Sn. Aligning antiferromagnetic domains, a necessary step for observation of the AHE, is more challenging for the cubic members of the Mn3X family, due to a combination of smaller spontaneous ferromagnetic moments and much stronger magnetic anisotropy. Here, we use a combination of uniaxial stress and applied magnetic field to align domains of bulk single-crystal Mn3Pt, and demonstrate for the first time a substantial AHE in a bulk sample of a cubic member of the Mn3X family. The AHE remains locked in with essentially no quantitative variation when the stress is ramped back to zero, which shows that it is not a consequence of any stress-induced ferromagnetic moment.},
added-at = {2023-06-15T12:58:18.000+0200},
author = {Zuniga-Cespedes, Belén E and Manna, Kaustuv and Noad, Hilary M L and Yang, Po-Ya and Nicklas, Michael and Felser, Claudia and Mackenzie, Andrew P and Hicks, Clifford W},
biburl = {https://www.bibsonomy.org/bibtex/2e83508644d1a194fe8a225582b9c1121/ctqmat},
day = 26,
description = {Observation of an anomalous Hall effect in single-crystal Mn3Pt },
doi = {10.1088/1367-2630/acbc3f},
interhash = {6f208a1468752b3c2060f01a9795f06a},
intrahash = {e83508644d1a194fe8a225582b9c1121},
issn = {1367-2630},
journal = {New J. Phys.},
keywords = {a},
month = {02},
number = 2,
pages = 023029,
publisher = {IOP Publishing},
timestamp = {2023-10-18T10:58:05.000+0200},
title = {Observation of an anomalous Hall effect in single-crystal Mn$_{\mathbf{3}}$Pt},
url = {https://dx.doi.org/10.1088/1367-2630/acbc3f},
volume = 25,
year = 2023
}