期刊
SCIENCE ADVANCES
卷 6, 期 23, 页码 -出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/sciadv.aaz8809
关键词
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资金
- National Grid Infrastructure MetaCentrum provided under the programme Projects of Projects of Large Research, Development, and Innovations Infrastructures [CESNET LM2015042]
- Alexander von Humboldt Foundation
- Transregional Collaborative Research Center (SFB/TRR) [173 SPIN+X]
- Ministry of Education of the Czech Republic [LM2015087]
- LNSM-LNSpin
- EU FET Open RIA grant [766566]
- Grant Agency of the Charles University [280815]
- Czech Science Foundation [19-28375X]
Electrons, commonly moving along the applied electric field, acquire in certain magnets a dissipationless transverse velocity. This spontaneous Hall effect, found more than a century ago, has been understood in terms of the time-reversal symmetry breaking by the internal spin structure of a ferromagnetic, noncolinear anti-ferromagnetic, or skyrmionic form. Here, we identify previously overlooked robust Hall effect mechanism arising from collinear antiferromagnetism combined with nonmagnetic atoms at noncentrosymmetric positions. We predict a large magnitude of this crystal Hall effect in a room temperature collinear antiferromagnet RuO2 and catalog, based on symmetry rules, extensive families of material candidates. We show that the crystal Hall effect is accompanied by the possibility to control its sign by the crystal chirality. We illustrate that accounting for the full magnetization density distribution instead of the simplified spin structure sheds new light on symmetry breaking phenomena in magnets and opens an alternative avenue toward low-dissipation nanoelectronics.
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