Sen, P. ; Chakrabarti, B. K. (1989) Ising models with competing axial interactions in transverse fields Physical Review B, 40 (1). pp. 760-762. ISSN 0163-1829
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Official URL: http://prb.aps.org/abstract/PRB/v40/i1/p760_1
Related URL: http://dx.doi.org/10.1103/PhysRevB.40.760
Abstract
The mean-field phase diagram of a three-dimensional axial-next-nearest-neighbor Ising (ANNNI) model in a transverse field has been studied here. The dynamical modes are found by using the random-phase approximation and the phase diagram is also obtained from the softening condition of these modes. For a one-dimensional ANNNI model in a transverse field, these dynamical modes are obtained here more accurately using a Jordan-Wigner-type transformation (with some approximations). Softening of these modes gives the zero-temperature phase diagram in one dimension.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 44879 |
| Deposited On: | 23 Jun 2011 09:52 |
| Last Modified: | 23 Jun 2011 09:52 |
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