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Spin Excitations in the Two-leg Ladder Antiferromagnet CaV$_2$O$_5$

Tetsuo Ohama·Masahiko Isobe·Yutaka Ueda
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Abstract

The nuclear spin-lattice relaxation rate (1/T1) at the V sites in CaV2O5 was measured. The result was compared with the calculation for the two-leg ladder with the strong-coupling expansion. We found a good agreement on the temperature and magnetic field dependence but a discrepancy between the exchange parameters deduced from 1/T1 and the magnetic susceptibility.

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Tetsuo Ohama, Masahiko Isobe, Yutaka Ueda. 2000-12-25. Spin Excitations in the Two-leg Ladder Antiferromagnet CaV$_2$O$_5$. https://doi.org/10.1143/jpsj.70.1801

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