Spin-waves in antiferromagnetic single crystal LiFePO$_4$

Details Spin-waves in antiferromagnetic single crystal LiFePO$_4$ Spin-waves in antiferromagnetic single crystal LiFePO$_4$

2005-08-19

arxiv.org/abs/cond-mat/0508480v1

Physics

Condensed Matter

Materials Science

Scientific paper

10.1103/PhysRevB.73.024410

Spin-wave dispersions in the antiferromagnetic state of single crystal LiFePO$_4$ were determined by inelastic neutron scattering measurements. The dispersion curves measured from the (010) reflection along both {\it a}$^\ast$ and {\it b}$^\ast$ reciprocal-space directions reflect the anisotropic coupling of the layered Fe$^{2+}$ (S = 2) spin-system. The spin-wave dispersion curves were theoretically modeled using linear spin-wave theory by including in the spin-Hamiltonian in-plane nearest- and next-nearest-neighbor interactions ({\it J}$_1$ and {\it J}$_2$), inter-plane nearest-neighbor interactions ({\it J}$_\bot$) and a single-ion anisotropy ({\it D}). A weak (010) magnetic peak was observed in elastic neutron scattering studies of the same crystal indicating that the ground state of the staggered iron moments is not along (010) direction, as previously reported from polycrystalline samples studies, but slightly rotated away from this axis.

Affiliated with

Also associated with

No associations

Rating

Spin-waves in antiferromagnetic single crystal LiFePO$_4$ 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 Spin-waves in antiferromagnetic single crystal LiFePO$_4$, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spin-waves in antiferromagnetic single crystal LiFePO$_4$ will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-135274