Physics – Condensed Matter – Materials Science
Scientific paper
2007-01-08
Physics
Condensed Matter
Materials Science
Scientific paper
10.1103/PhysRevB.75.174420
The effects of quantum fluctuations on the magnetic field dependence of the spin-wave gaps in the lamellar antiferromagnet La$_2$CuO$_4$ are considered. Nonlinear corrections to the spin-wave spectrum are calculated to leading order in 1/S, where $S$ is the localized spin. The nearest-neighbor exchange interactions between the Cu spins as well as the Dzyaloshinskii-Moriya interactions are taken into account. Using the experimental values of the components of the $g$-factor tensor, we get a satisfactory agreement with the experimental results for the field dependence of the gaps by Gozar {\it et al.} [Phys. Rev. Lett. {\bf 93}, 027001 (2004)], and obtain consistent values of the in-plane and inter-plane coupling constants. The field dependence of the dispersion of spin waves propagating perpendicular to the CuO$_2$ planes is also discussed.
Aharony Amnon
Entin-Wohlman Ora
Korenblit Ya. I.
No associations
LandOfFree
Quantum corrections to the spin-wave spectrum of La$_2$CuO$_4$ in an external magnetic field does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Quantum corrections to the spin-wave spectrum of La$_2$CuO$_4$ in an external magnetic field, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum corrections to the spin-wave spectrum of La$_2$CuO$_4$ in an external magnetic field will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-721666