Mechanism of antisymmetric spin polarization in centrosymmetric multiple- <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>Q</mml:mi></mml:math> magnets based on effective chiral bilinear and biquadratic spin cross products
نویسندگان
چکیده
We investigate how to engineer an antisymmetric spin-split band structure under spin density waves with finite ordering wave vectors in centrosymmetric systems without the relativistic spin-orbit coupling. On basis of a perturbative analysis for spin-charge coupled model itinerant magnets, we show that nonzero chiral-type bilinear and biquadratic cross products momentum space magnetic orderings are related polarization electronic structure. apply derived formula single-$Q$ cycloidal spiral double-$Q$ noncoplanar states including meron-antimeron skyrmion crystals. Our results present clue realize giant splitting driven by phase transitions lattice structures
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ژورنال
عنوان ژورنال: Physical review
سال: 2022
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physrevb.105.024413