Energy levels and exchange interactions of spin clusters
نویسنده
چکیده
We first describe a simple method for diagonalizing the isotropic exchange Hamil, tonian of a cluster of N spins in the most general case where all the exchange constants are different. The technique, based on the rotation invariance of the system, leads to a considerable reduction of the total matrix. Simple expressions of the magnetization and susceptibility are provided and an example of the determination of the exchange constants of a complex with five
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