Physics – Condensed Matter – Disordered Systems and Neural Networks
Scientific paper
2002-05-17
Physics
Condensed Matter
Disordered Systems and Neural Networks
15 pages, pdf format
Scientific paper
10.1103/PhysRevB.66.012405
we investigate the thermodynamic properties of weakly anisotropic disordered magnetic chains where the nearest-neighbor Heisenberg exchange coupling is the dominant spin-spin interaction. In addition to the exchange interaction, there is single-ion anisotropy with the direction of the easy axis being the same for all spins. The analysis is carried out in the limit S >> 1, where S denotes the ionic spin, and in the temperature range T << JaveS, where Jave is the average magnitude of the exchange interaction. It is assumed that the independent boson picture is appropriate so that the thermodynamic properties of the chain are those of a gas of weakly interacting magnons whose frequencies are obtained from linearized equations of motion for the spins. The =+/-J model is studied in detail with both random and non-random anisotropy. Particular emphasis is placed on the existence
Avgin I.
Huber David L.
No associations
LandOfFree
Thermodynamic Properties of Weakly Anisotropic Disordered Magnetic Chains in the Large-S Limit 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 Thermodynamic Properties of Weakly Anisotropic Disordered Magnetic Chains in the Large-S Limit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermodynamic Properties of Weakly Anisotropic Disordered Magnetic Chains in the Large-S Limit will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-653134