About this scholarly article

Dynamic probes of quantum spin chains with the Dzyaloshinskii-Moriya interaction by Derzhko, Oleg; Verkholyak, Taras; Krokhmalskii, Taras; Büttner, Helmut is a scholarly article available to read on EtoBox.

We consider the spin-1/2 anisotropic XY chain in a transverse (z) field with the Dzyaloshinskii-Moriya interaction directed along 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.

Author

Derzhko, Oleg; Verkholyak, Taras; Krokhmalskii, Taras; Büttner, Helmut

Published

2007

Language

EN