Exact diagonalization study of domain structure in integer filling factor quantum Hall ferromagnets

Physical Review B - Condensed Matter and Materials Physics

Volumn 67, Issue 20, 2003, Pages

  Rezayi, E H ^a   Jungwirth, T ^b,c   Macdonald, A H ^c   Haldane, F D M ^d  

^a CALIFORNIA STATE UNIVERSITY   (United States)

^b INSTITUTE OF PHYSICS   (Czech Republic)

^c The University of Texas at Austin   (United States)

^d PRINCETON UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ACCELERATION; ARTICLE; CALCULATION; ENERGY; EXCITATION; MAGNETIC FIELD; MAGNETISM; MICROSCOPY; QUANTUM CHEMISTRY; QUANTUM MECHANICS;

EID: 0037489275     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.67.201305     Document Type: Article

References (16)

1. W. Pan, R.R. Du, H.L. Stormer, D.C. Tsui, L.N. Pfeiffer, K.W. Baldwin, and K.W. West, Phys. Rev. Lett. 83, 820 (1999).
2. M.P. Lilly, K.B. Cooper, J.P. Eisenstein, L.N. Pfeiffer, and K.W. West, Phys. Rev. Lett. 83, 824 (1999).
3. E.H. Rezayi and F.D.M. Haldane, Phys. Rev. Lett. 84, 4685 (2000).
4. W. Pan, T. Jungwirth, H.L. Stormer, D.C. Tsui, A.H. MacDonald, S.M. Girvin, L. Smrc̆ka, L.N. Pfeiffer, K.W. Baldwin, and K.W. West, Phys. Rev. Lett. 85, 3257 (2000).
5. T. Jungwirth, A.H. MacDonald, L. Smrc̆ka, and S.M. Girvin, Phys. Rev. B 60, 15574 (1999).
6. W. Pan, H.L. Stormer, D.C. Tsui, L.N. Pfeiffer, K.W. Baldwin, and K.W. West, Phys. Rev. B 64, 121305 (2001).
7. Magnetotransport anisotropy at integer filling factors and tilted fields has also been reported in Si/SiGe heterostructure samples: U. Zeitler, H.W. Schumacher, A.G.M. Jansen, and R.J. Haug, Phys. Rev. Lett. 86, 866 (2001).
8. Stripe states at integer filling factors are, however, a possibility. See E. Demler, Daw-Wei Wang, S. Das Sarma, and B.I. Halperin, Solid State Commun. 123, 243 (2002);
9. Daw-Wei Wang, S. Das Sarma, E. Demler, and B.I. Halperin, Phys. Rev. B 66, 195334 (2002).
10. T. Jungwirth and A.H. MacDonald, Phys. Rev. B 63, 035305 (2001).
11. T. Jungwirth and A.H. MacDonald, Phys. Rev. Lett. 87, 216801 (2001).
12. J.T. Chalker, D.G. Polyakov, F. Evers, A.D. Mirlin, and P. Wölfle, Phys. Rev. B 66, 161317 (2002).
13. F.D.M. Haldane, in The Quantum Hall Effect, 2nd ed., edited by R.E. Prange and S.M. Girvin (Springer, New York, 1990).
14. E.H. Rezayi, F.D.M. Haldane, and Kun Yang, Phys. Rev. Lett. 83, 1219 (1999);
15. Phys. Rev. Lett. F.D.M. Haldane, E.H. Rezayi, and Kun Yang, 85, 5396 (2000).
16. z (along total B) is conserved, the domain walls have no dynamics and are localized. Indeed, the wall energy is essentially unchanged for fewer reversed spins (for 5, 4, and 3). It is somewhat reduced for very few reversed spins (for 1 and 2). The degree of quasidegeneracy is also denigrated for very small reversed spins. These differences are, however, very likely to be of finite-size origin.