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

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

2000-12-25

arxiv.org/abs/cond-mat/0012454v1

Physics

Condensed Matter

Strongly Correlated Electrons

7 pages, 7 figures, submitted to J. Phys. Soc. Jpn

Scientific paper

10.1143/JPSJ.70.1801

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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