SPIN BACKFLOW IN THE VICINITY OF SPIN POLARONS IN THE T-J-MODEL

Authors
RAMSAK A HORSCH P JAKLIC J
Citation
A. Ramsak et al., SPIN BACKFLOW IN THE VICINITY OF SPIN POLARONS IN THE T-J-MODEL, Physica. C, Superconductivity, 235, 1994, pp. 2247-2248
Citations number
6
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
235
Year of publication
1994
Part
4
Pages
2247 - 2248
Database
ISI
SICI code
0921-4534(1994)235:<2247:SBITVO>2.0.ZU;2-U
Abstract
We investigate the spin backflow current in a spin-1/2 Heisenberg quan tum antiferromagnet associated with the motion of a hole. The spin bac kflow is studied here with two different methods: (a) starting from th e wave function of the hole-like quasiparticle obtained in the self-co nsistent Born approximation and (b) an approximation-free exact diagon alisation technique. Spin currents calculated analytically are in a go od agreement with small cluster diagonalization studies.