Single-hole dynamics in dimerized spin liquids

Physical Review B - Condensed Matter and Materials Physics

Volumn 60, Issue 5, 1999, Pages 3289-3293

  Sushkov, O P ^a  

^a UNIVERSITY OF NEW SOUTH WALES   (Australia)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0000932279     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.60.3289     Document Type: Article

References (15)

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5. See, e.g., the review article E. Dagotto, Rev. Mod. Phys. 66, 763 (1994).
6. O. P. Sushkov and V. N. Kotov, Phys. Rev. Lett. 81, 1941 (1998).
7. V. N. Kotov, O. P. Sushkov, and R. Eder, Phys. Rev. B 59, 6266 (1999).
8. A. V. Chubukov, Pis’ma Zh. Éksp. Teor. Fiz. 49, 108 (1989) [JETP Lett. 49, 129 (1989)].
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11. V. N. Kotov, O. Sushkov, Z. Weihong, and J. Oitmaa, Phys. Rev. Lett. 80, 5790 (1998).
12. To derive the mapping for the case of many holes one has to include several additional terms which reflect hole-hole interactions.
13. This is the perturbation theory formula valid, strictly speaking, at (Formula presented). However, it works well even at (Formula presented). For example, at (Formula presented), the perturbation theory gives (Formula presented), and according to exact numerical calculations (Ref. 14) (Formula presented).
14. J. Oitmaa, R. R. P. Singh, and Z. Weihong, Phys. Rev. B 54, 1009 (1996).
15. The spin-wave spectrum can be found in Ref. 14. At (Formula presented) the minimum energy of the spin wave is (Formula presented). This is the decay threshold.