Quantum magnets with large single-ion easy-plane anisotropy in transverse magnetic field

Details Quantum magnets with large single-ion easy-plane anisotropy in transverse magnetic field Quantum magnets with large single-ion easy-plane anisotropy in transverse magnetic field

2011-12-05

arxiv.org/abs/1112.0833v1

JETP Letters 94, 665 (2011)

Physics

Condensed Matter

Strongly Correlated Electrons

7 pages, 4 figures, to appear in JETP Letters

Scientific paper

10.1134/S0021364011200124

We discuss low-temperature properties of magnets with integer spin and large single-ion easy-plane anisotropy $D$ in transverse magnetic field $h$. Considering the exchange interaction between spins as a perturbation and using the diagram technique we derive at $h\sim D$ in the first nonvanishing orders of the perturbation theory thermal corrections to the elementary excitation spectrum, magnetization and specific heat. An expression for the boundary $h_{c1}(T)$ is found in the $h$-$T$ plane between the paramagnetic phase and that with the long range magnetic order. The effective interaction is derived between bosons near the quantum critical point $h_{c1}(0)$. The proposed theory describes well experimental data obtained in $\rm NiCl_2$-$\rm 4SC(NH_2)_2$ (DTN).

Affiliated with

Also associated with

No associations

Rating

Quantum magnets with large single-ion easy-plane anisotropy in transverse 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 magnets with large single-ion easy-plane anisotropy in transverse magnetic field, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum magnets with large single-ion easy-plane anisotropy in transverse magnetic field will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-393344