@article{cf6a735a3eb74deeb1f3b2c9e9c5be9b,
title = "Evidence of magnetism-induced topological protection in the axion insulator candidate EuSn2P2",
abstract = "We unravel the interplay of topological properties and the layered (anti)ferromagnetic ordering in EuSn2P2, using spin and chemical selective electron and X-ray spectroscopies supported by firstprinciple calculations. We reveal the presence of in-plane longrange ferromagnetic order triggering topological invariants and resulting in the multiple protection of topological Dirac states. We provide clear evidence that layer-dependent spin-momentum locking coexists with ferromagnetism in this material, a cohabitation that promotes EuSn2P2 as a prime candidate axion insulator for topological antiferromagnetic spintronics applications.",
keywords = "ARPES, Axion insulator, Magnetism, Spin polarization, Topological surface states",
author = "Pierantozzi, {Gian Marco} and {De Vita}, Alessandro and Chiara Bigi and Xin Gui and Tien, {Hung Ju} and Debashis Mondal and Federico Mazzola and Jun Fujii and Ivana Vobornik and Giovanni Vinai and Alessandro Sala and Cristina Africh and Lee, {Tien Lin} and Giorgio Rossi and Chang, {Tay Rong} and Weiwei Xie and Cava, {Robert J.} and Giancarlo Panaccione",
note = "Funding Information: ACKNOWLEDGMENTS. This work has been partly performed in the frame-work of the Nanoscience Foundry and Fine Analysis (NFFA-MUR Italy) facility. The work at Princeton was supported by the NSF (NSF Materials Research Science and Engineering Centers grant DMR 2011750). We thank D. di Sante and S. Picozzi for valuable discussion. Publisher Copyright: {\textcopyright} 2022 National Academy of Sciences. All rights reserved.",
year = "2022",
month = jan,
day = "25",
doi = "10.1073/pnas.2116575119",
language = "English (US)",
volume = "119",
journal = "Proceedings of the National Academy of Sciences of the United States of America",
issn = "0027-8424",
publisher = "National Academy of Sciences",
number = "4",
}