Institute for Solid State ResearchIFW Dresden D-01171 Dresden Germany
State Key Laboratory of Functional Materials for Informatics and Center for Excellence in Superconducting ElectronicsSIMITChinese Academy of Sciences Shanghai 200050 China
Solid State and Structural Chemistry UnitIndian Institute of Science, Bangalore Karnataka 560012 India
Department of Quantum MaterialsMax-Planck-Institute for Solid State Research Heisenbergstrasse 1 Stuttgart 70569 Germany
Department of ChemistryPrinceton University Princeton NJ 08544 USA
School of Physical Science and TechnologyShanghaiTech University Shanghai 200031 China
Non‐magnetic half‐metals are a new class of materials that are metallic only for one spin direction. In contrast to conventional half‐metals, this spin direction is not fixed in space and is always perpendicular to the momentum of an electron. IrBiSe is one of such materials. Using angle‐resolved photoemission spectroscopy and band structure calculations, Zhonghao Liu et al. find a record‐high Dresselhaus spin‐orbit splitting, fully spin‐polarized remnant Fermi surfaces and a chiral 3D spin‐texture, all with no magnetism present (see article number 1900684). Promising applications include using IrBiSe as a source of spin‐polarized electrons, and lightly doped IrBiSe is expected to generate electric‐field‐controlled spin‐polarized currents, free from back scattering, and could host triplet superconductivity.
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