Ground state of the two-dimensional Dzyaloshinski-Moriya antiferromagnet
β Scribed by W. Koshibae; Y. Ohta; S. Maekawa
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 549 KB
- Volume
- 185-189
- Category
- Article
- ISSN
- 0921-4534
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π SIMILAR VOLUMES
We explore the ground states and quantum phase transitions of two-dimensional, spin S = 1/2, antiferromagnets by generalizing lattice models and duality transforms introduced by Sachdev and , Mod. Phys. Lett. B 4, 1043). The minimal model for square lattice antiferromagnets is a lattice discretizati
Two dimensional spin-fermion model is studied by using the perturbation method and the spin wave approximation. Non-crossing diagrams are calculated using the dominant pole approximation. As a result, we see that the renormalization parameter z is reduced as z Β’x L -1;4, where L is the linear dimens