A Magnetic exchange interaction by first principle (Blume-Capel model)

UFSJ
Messages
13
Reaction score
2
Hi guys.

I work with statistichal mechanics, applying classical spin models, as Ising model. I'm trying a collaboration with a colleague that works with first principle calculations. Does anyone know how to calculate the exchange interaction and anisotropic constant (of the Blume-Capel model), of bulk materials, by first principle??

Thanks a lot !
 
Physics news on Phys.org
UFSJ said:
Hi guys.

I work with statistichal mechanics, applying classical spin models, as Ising model. I'm trying a collaboration with a colleague that works with first principle calculations. Does anyone know how to calculate the exchange interaction and anisotropic constant (of the Blume-Capel model), of bulk materials, by first principle??

Thanks a lot !
Hi.

You can try 4 states method, details in 10.1103/PhysRevB.84.224429. I hope that will be helpful.
 
Hi. I have got question as in title. How can idea of instantaneous dipole moment for atoms like, for example hydrogen be consistent with idea of orbitals? At my level of knowledge London dispersion forces are derived taking into account Bohr model of atom. But we know today that this model is not correct. If it would be correct I understand that at each time electron is at some point at radius at some angle and there is dipole moment at this time from nucleus to electron at orbit. But how...
Back
Top