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Quantum Magnetism and Quantum Entanglement

Note - IPM

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Jahanfar Abouie<br />

Adv Cond Mat<br />

Smr School<br />

2012-IPM<br />

7/<br />

Theory of <strong>Magnetism</strong>-Interactions<br />

a) Paramagnetic ion-Nonmagnetic ion interactions<br />

Lig<strong>and</strong>s : Non-magnetic ions surrounding one paramagnetic ion.<br />

Crystal Field : Electrostatic interaction between the electrons of paramagnetic ion<br />

<strong>and</strong> electron charge distribution of the lig<strong>and</strong>s.<br />

Effects : Splitting the energy levels of the single magnetic atom.<br />

Amount of splitting : depends on the symmetry of the local environment

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