Program

O.21 -- Oral, NCTP-40

Date: Wednesday, 29 July 2015

Time: 16h20 - 16h40

Spin wave in ultra-thin film in presence of interfacial Dzyaloshinskii-Moriya and anisotropy interactions

Nguyen Tu Niem, Bach Thanh Cong

Computational Materials Science Laboratory, Faculty of Physics, VNU University of Science

In this report we examine spin wave in thin magnetic films at finite temperature using double time temperature dependent Green function method for the Heisenberg Hamiltonian with additional interfacial Dzyaloshinskii- Moriya and anisotropy interactions. It is shown during RPA that, interfacial Dzyaloshinskii- Moriya interaction leads to the un-symmetric propagation of spin wave in opposite directions and the anisotropy is responsible for the gap of spin wave at center of Brillouin zone.

Presenter: Bach Thanh Cong