Local impurities in 2D quantum antiferromagnets

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

卷:177

Article; Proceedings Paper

Kotov, VN ; Oitmaa, J ; Sushkov, O

关键词: Heisenberg antiferromagnet;    impurity effects;   

DOI  :  10.1016/S0304-8853(97)00844-5

来源: Elsevier

【 摘 要 】

The 2D quantum Heisenberg antiferromagnet at zero temperature with two kinds of locally frustrating defects ferromagnetic bonds and impurity spins - is studied. An analytic approach is developed to investigate strong defect-environment couplings. Results for the local ground state properties are compared to numerical simulations and previous work. (C) 1998 Elsevier Science B.V. All rights reserved.

【 授权许可】

Free