An extension of the characteristic angle method to the easy-plane spin-3/2 ferromagnet
arXiv:cond-mat/9607218 · doi:10.1016/0375-9601(96)00510-5
Abstract
The Characteristic Angle (CA) method [Lei Zhou and Ruibao Tao, J. Phys. A, {\bf 27} 5599] developed previously for the easy-plane spin-1 magnetic systems has been successfully extended to the spin-3/2 case. A compact form of the CA spin-3/2 operator transformation is given, then the ground state energy, the magnon dispersion relation and the spontaneous magnetization are discussed for an easy-plane spin-3/2 ferromagnet by using the CA method. Comparisons with the old theoretical methods are made in the end.
arXiv commentLaTex formatted. To be published in the forthcoming issue of Physics Letters A (1996). 3 figures. Email address: [email protected]