Ising model


by captain
Tags: ising, model
captain
captain is offline
#1
Nov24-09, 03:07 PM
P: 163
I am curious to know the Ising model can be applied to high temperature superconducting materials. If so are there any papers significant papers on this subject that I should know about. Thanks to anyone in advance who can answer this question.
Phys.Org News Partner Physics news on Phys.org
Researchers find tin selenide shows promise for efficiently converting waste heat into electrical energy
After 13 years, progress in pitch-drop experiment (w/ video)
Global scientific team 'visualizes' a new crystallization process (w/ video)
kanato
kanato is offline
#2
Nov24-09, 08:15 PM
P: 416
I doubt it. The Ising model is too simple to give realistic results, generally people use the Heisenberg model instead. It might be a reasonable approximation for the undoped antiferromagnetic phase of HTSC's but since the Ising model doesn't include any terms for allowingelectrons to move around the lattice, it would not be helpful for describing a conducting state, let alone a superconducting state.

There are several recent papers which calculate exchange constants for the iron arsenide superconductors, such as Phys. Rev. Lett. 102, 107003 (2009).
crazystone
crazystone is offline
#3
Dec1-09, 11:40 PM
P: 1
Ising, I sing! How about you? :)

wbwb
wbwb is offline
#4
Dec2-09, 02:14 PM
P: 2

Ising model


Actually the Ising model has quite some significance for the high temperature superconducting materials - though not for a description of high temperature superconductivity. The two dimensional asymmetric next-nearest neighbor Ising model (ASYNNNI) is widely used to describe the oxygen ordering in the YBCO type of high-Tc cuprates. Just do a literature search for it.


Register to reply

Related Discussions
about ising model Atomic, Solid State, Comp. Physics 12
mechanism before Ising model Atomic, Solid State, Comp. Physics 7
Ising Model Atomic, Solid State, Comp. Physics 6
2d ising model, mft Advanced Physics Homework 1
Frustrated Ising Model Atomic, Solid State, Comp. Physics 1