Volume 102, Number 6, June 2013
|Number of page(s)||6|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||15 July 2013|
Stable and locally stable conditions for a conical spin state in the spinel structure
Department of Physics, Southeast University - Nanjing 211189, China
Received: 21 November 2012
Accepted: 10 June 2013
A conical spin state generates the multiferroicity with both spontaneous magnetization and ferroelectric polarization, offering a great promise for the mutual control of magnetism and ferroelectricity. To clarify the stable and locally stable conditions for the conical spin order, a Monte Carlo simulation is performed on a three-dimensional spinel lattice with classical Heisenberg spins to explore the possible ground states in different parameter spaces. The simulation confirms the locally stable range of the conical spin state, which was suggested by the LKDM (Lyons, Kaplan, Dwight, and Menyuk) theory. Furthermore, it is revealed that the anisotropy plays an important role in stabilizing the conical spin order and expanding the parameter range of its existence, whereas the nearest-neighboring antiferromagnetic A-A exchange interaction enhances frustration and thereby suppresses the conical spin order. Thus, our simulation gives a necessary supplement and a reasonable improvement to the LKDM theory.
PACS: 75.25.-j – Spin arrangements in magnetically ordered materials (including neutron and spin-polarized electron studies, synchrotron-source x-ray scattering, etc.) / 75.85.+t – Magnetoelectric effects, multiferroics / 75.50.Gg – Ferrimagnetics
© EPLA, 2013
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.