Atomistic spin dynamics of the CuMn spin glass alloy

Details Atomistic spin dynamics of the CuMn spin glass alloy Atomistic spin dynamics of the CuMn spin glass alloy

2008-10-09

arxiv.org/abs/0810.1645v1

Physics

Condensed Matter

Materials Science

18 pages, 9 figures

Scientific paper

10.1103/PhysRevB.79.024411

We demonstrate the use of Langevin spin dynamics for studying dynamical properties of an archetypical spin glass system. Simulations are performed on CuMn (20% Mn) where we study the relaxation that follows a sudden quench of the system to the low temperature phase. The system is modeled by a Heisenberg Hamiltonian where the Heisenberg interaction parameters are calculated by means of first-principles density functional theory. Simulations are performed by numerically solving the Langevin equations of motion for the atomic spins. It is shown that dynamics is governed, to a large degree, by the damping parameter in the equations of motion and the system size. For large damping and large system sizes we observe the typical aging regime.

Affiliated with

Also associated with

No associations

Rating

Atomistic spin dynamics of the CuMn spin glass alloy does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Atomistic spin dynamics of the CuMn spin glass alloy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Atomistic spin dynamics of the CuMn spin glass alloy will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-460912