Spin-wave theory of the spiral phase of the t-J model.
نویسندگان
چکیده
A graded Holstein-Primakoff realization of the SU(2/1) algebra is proposed. A spin-wave theory with a condition that the sublattice magnetization is zero is discussed. It is shown that the generalized spin-wave theory is appropriate to investigate the long-range spiral (incommensurate) phase of the t − J model at T = 0. The spin-spin correlator is calculated.
منابع مشابه
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عنوان ژورنال:
- Physical review. B, Condensed matter
دوره 47 14 شماره
صفحات -
تاریخ انتشار 1993