Comment on ``Magnetic Field Independence of the Spin Gap in
V. F. Mitrovic, H. N. Bachman, W. P. Halperin, M. Eschrig, and J. A. Sauls
- Date: January 22, 1999
In a recent Letter of Gorny et al. [Phys. Rev. Lett. 82, 177 (1999)] it was reported that
the spin-lattice relaxation rate in YBa2Cu3O7-d''
is magnetic field independent. These authors
point out that their results are inconsistent with prior reports of Borsa et al.,
Carretta et al., and Mitrovic et al., which concluded that there is a small but significant
magnetic field dependence. In this comment we propose an explanation for this discrepancy.
- Comment: 1 page, 1 figure