2006/06/06 by Oleg Derzhko, Taras Verkholyak, Taras Krokhmalskii +2 · 1 citation
Physics and Astronomy · #Magnetic properties of thin films #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #cond-mat.stat-mech #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.73.214407
published as Phys. Rev. B 73, 214407 (2006) (14 pages)
openalex publication_date 2006/06/06 · arxiv created 2007/12/20 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We consider the spin-(1)/(2) anisotropic XY chain in a transverse (z) field with the Dzyaloshinskii-Moriya interaction directed along the z axis in spin space to examine the effect of the Dzyaloshinskii-Moriya interaction on the zz, xx, and yy dynamic structure factors. Using the Jordan-Wigner fermionization approach we analytically calculate the dynamic transverse spin structure factor. It is governed by a two-fermion excitation continuum. We analyze the effect of the Dzyaloshinskii-Moriya interaction on the two-fermion excitation continuum. Other dynamic structure factors which are governed by many-fermion excitations are calculated numerically. We discuss how the Dzyaloshinskii-Moriya interaction manifests itself in the dynamic properties of the quantum spin chain at various fields and temperatures.