Quantum Magnetism and Quantum Entanglement
Note - IPM
Note - IPM
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Jahanfar Abouie<br />
Adv Cond Mat<br />
Smr School<br />
2012-IPM<br />
13/<br />
Theory of magnetism-Interactions<br />
exchanged<br />
→ Parallel spins, Ferromagnetic<br />
Origin : Orthogonal orbitals<br />
→ Antiparallel spins, Antiferromagnetic<br />
Origin: Non-orthogonal orbitals<br />
Bethe-Slater curve (Schematic)<br />
: radius of an atom<br />
: radius of its 3<br />
shell of electrons<br />
B. D. Cullity, C. D. Graham, “Introduction to magnetic materials” 2 nd Edt. IEEE Press (2009)