2nd talk. The Mott transition
2nd talk. The Mott transition
2nd talk. The Mott transition
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<strong>The</strong> <strong>Mott</strong> <strong>transition</strong>. Paramagnetic state<br />
Atomic lattice single orbital per site and average occupancy 1: half filling<br />
Hopping<br />
saves energy t<br />
Double occupancy<br />
costs energy U<br />
Small U/t<br />
Metal<br />
Increasing U/t<br />
<strong>Mott</strong> <strong>transition</strong><br />
Large U/t<br />
Insulator<br />
W<br />
Double<br />
occupancy<br />
Single<br />
occupancy<br />
U
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