Abstract
Within the Schwinger-boson approach for the t-J model, the single hole problem in a two-dimensional quantum antiferromagnet is studied by using the quantum Bogoliubov-de Gennes formalism which treats the distortion of the spin background and quantum spin fluctuations on an equal footing. Several self-trapped localized hole states are found in the distorted spin-background as in the case of an anisotropic Heisenberg model. These localized hole states survive at finite temperatures when the antiferromagnetic order becomes short-ranged. The energy separation between the two lowest states is reduced by considering the spin-background distortion, but it remains finite. (author). 17 refs, 5 figs, 1 tab.
Citation Formats
Wu, C Q, Yu, L, and Su, Z B.
Schwinger-boson studies of the single hole motion in a 2d quantum antiferromagnet.
IAEA: N. p.,
1994.
Web.
Wu, C Q, Yu, L, & Su, Z B.
Schwinger-boson studies of the single hole motion in a 2d quantum antiferromagnet.
IAEA.
Wu, C Q, Yu, L, and Su, Z B.
1994.
"Schwinger-boson studies of the single hole motion in a 2d quantum antiferromagnet."
IAEA.
@misc{etde_10112975,
title = {Schwinger-boson studies of the single hole motion in a 2d quantum antiferromagnet}
author = {Wu, C Q, Yu, L, and Su, Z B}
abstractNote = {Within the Schwinger-boson approach for the t-J model, the single hole problem in a two-dimensional quantum antiferromagnet is studied by using the quantum Bogoliubov-de Gennes formalism which treats the distortion of the spin background and quantum spin fluctuations on an equal footing. Several self-trapped localized hole states are found in the distorted spin-background as in the case of an anisotropic Heisenberg model. These localized hole states survive at finite temperatures when the antiferromagnetic order becomes short-ranged. The energy separation between the two lowest states is reduced by considering the spin-background distortion, but it remains finite. (author). 17 refs, 5 figs, 1 tab.}
place = {IAEA}
year = {1994}
month = {Sep}
}
title = {Schwinger-boson studies of the single hole motion in a 2d quantum antiferromagnet}
author = {Wu, C Q, Yu, L, and Su, Z B}
abstractNote = {Within the Schwinger-boson approach for the t-J model, the single hole problem in a two-dimensional quantum antiferromagnet is studied by using the quantum Bogoliubov-de Gennes formalism which treats the distortion of the spin background and quantum spin fluctuations on an equal footing. Several self-trapped localized hole states are found in the distorted spin-background as in the case of an anisotropic Heisenberg model. These localized hole states survive at finite temperatures when the antiferromagnetic order becomes short-ranged. The energy separation between the two lowest states is reduced by considering the spin-background distortion, but it remains finite. (author). 17 refs, 5 figs, 1 tab.}
place = {IAEA}
year = {1994}
month = {Sep}
}