Experimental Evidence for Kaplan–Shekhtman–Entin-Wohlman–Aharony Interactions inBa2CuGe2O7

1998/05/19 by A. Zheludev, Sergei Maslov, S. Maslov +11 · 5 citations
Physics and Astronomy · #Advanced Condensed Matter Physics #Magnetic properties of thin films #Physics of Superconductivity and Magnetism #cond-mat.str-el

paper · pdf · doi:10.1103/physrevlett.81.5410

4 pages (RevTex), 4 figures (PS)

arxiv created 1998/05/19 · openalex publication_date 1998/12/14 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

New neutron diffraction and inelastic neutron scattering experiments on Ba₂CuGe₂O₇ suggest that the previously suggested model for the magnetism of this material (an ideal sinusoidal spin spiral, stabilized by isotropic exchange and Dzyaloshinskii-Moriya interactions) needs to be refined. Both new and previously published experimental results can be quantitatively explained by taking into account the Kaplan-Shekhtman-Entin-Wohlman-Aharony term, a special anisotropy term that was predicted to always accompany Dzyaloshinskii-Moriya interactions in insulators.

Citations

• Field-Induced Commensurate-Incommensurate Phase Transition in a Dzyaloshinskii-Moriya Spiral Antiferromagnet
• Anisotropic Spin Hamiltonians due to Spin-Orbit and Coulomb Exchange Interactions
• Anisotropic Superexchange Interaction and Weak Ferromagnetism

Cited by

• Effects of anisotropic spin-exchange interactions in spin ladders
• Dzyaloshinskii-Moriya interactions in valence-bond systems
• Quasi-two-dimensional Bose-Einstein condensation of spin triplets in the dimerized quantum magnetBa2CuSi2O6Cl2
• Spin waves and the origin of commensurate magnetism inBa2CoGe2O7
• Origin of magnetic anisotropy in the spin ladder compound (C5H12N)2CuBr4