First-principles study of the spin-lattice coulpling in spin frustrated DyMn${}_2$O${}_5$

Tianqi Shen, Kun Cao, Guang-Can Guo +1

The lattice dynamic properties and spin-phonon coupling in DyMn${}_2$O${}_5$ are studied by using the density-functional theory. The calculated phonon frequencies are in very good agre…