Spin-orbit interaction driven dimerization in one-dimensional frustrated magnets

2017/03/31 by Shang-Shun Zhang, Nitin Kaushal, Elbio Dagotto +1
Biochemistry, Genetics and Molecular Biology · Engineering · Physics and Astronomy · #Advanced Condensed Matter Physics #Aerospace engineering #Condensed matter physics #Engineering #Geomagnetism and Paleomagnetism Studies #Magnet #Magnetic properties of thin films #Orbit (dynamics) #Physics #Quantum mechanics #Spin (aerodynamics) #Spin–orbit interaction #cond-mat.quant-gas #cond-mat.str-el

paper · pdf · doi:10.1103/physrevb.96.214408

published as Phys. Rev. B 96, 214408 (2017)

arxiv created 2017/11/13 · openalex publication_date 2017/12/07 · arxiv updated 2017/12/19 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06

Abstract

We study the effect of spin-orbit interaction on one-dimensional U(1)-invariant frustrated magnets with dominant critical nematic fluctuations. The spin-orbit coupling explicitly breaks the U(1) symmetry of arbitrary global spin rotations about the high-symmetry axis down to Z₂ (invariance under a \ensuremathπ rotation). Given that the nematic order parameter is invariant under a \ensuremathπ rotation, it is relevant to ask if other discrete symmetries can be spontaneously broken. Here we demonstrate that the spin-orbit coupling induces a bond density wave that spontaneously breaks the translational symmetry and opens a gap in the excitation spectrum.

Citations

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