Delocalized 2-magnons eigenstates in long-range correlated random Heisenberg chains

Journal of Magnetism and Magnetic Materials

Volumn 321, Issue 15, 2009, Pages 2304-2310

  Dias, W S ^a   Nascimento, E M ^a   de Moura, F A B F ^a   Lyra, M L ^a  

^a FEDERAL UNIVERSITY OF ALAGOAS   (Brazil)

Author keywords

Disordered systems; Phase transitions; Quantum localization; Spin dynamics

Indexed keywords

ASYMMETRIC PROFILES; DISORDERED SYSTEMS; EIGENSTATES; EXACT DIAGONALIZATION; FERROMAGNETIC CHAINS; FINITE ENERGIES; HEISENBERG; KINEMATIC INTERACTIONS; MAGNON STATE; MAGNONS; MEAN-SQUARE DISPLACEMENTS; ONE-DIMENSIONAL; QUANTUM LOCALIZATION; RANDOM EXCHANGE COUPLINGS; RANDOM HEISENBERG CHAINS; SCHROEDINGER EQUATIONS; SPIN EXCITATIONS; SPIN FLIPS; SPIN STATE; TIME DEPENDENTS; TIME EVOLUTIONS; WAVE-PACKET;

COUPLINGS; DYNAMICS; EXCHANGE COUPLING; MULTILAYERS; PHASE TRANSITIONS; SPIN WAVES;

SPIN DYNAMICS;

EID: 65149087099     PISSN: 03048853     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.jmmm.2009.02.120     Document Type: Article

References (25)

1. Ziman T.A.L. Phys. Rev. Lett. 49 (1982) 337
2. For a review see, e.g., B. Kramer, A. MacKinnon, Rep. Prog. Phys. 56 (1993) 1469.
3. Abrahams E., Anderson P.W., Licciardello D.C., and Ramakrishnan T.V. Phys. Rev. Lett. 42 (1979) 673
4. For a review see, e.g., I.M. Lifshitz, S.A. Gredeskul, L.A. Pastur, Introduction to the Theory of Disordered Systems, Wiley, New York, 1988.
5. Slevin K., and Ohtsuki T. Phys. Rev. Lett. 82 (1999) 382
6. Slevin K., and Ohtsuki T. Phys. Rev. Lett. 78 (1997) 4083
7. Asada Y., Slevin K., and Ohtsuki T. J. Phys. Soc. Jpn. Suppl. 74 (2005) 238
8. Ziman T.A.L. Phys. Rev. Lett. 49 (1982) 337
9. Theodorou G. J. Phys. C 15 (1982) L1315
10. Riklund R., and Severin M. J. Phys. C 21 (1988) L965
11. Evangelou S.N., and Katsanos D.E. Phys. Lett. A 164 (1992) 456
12. Evangelou S.N., Wang A.Z., and Xiong S.J. J. Phys. Condens. Matter 6 (1994) 4937
13. Crisan M., and Tataru L. J. Magn. Magn. Mater. 138 (1994) 57
14. Dugaev V.K., Bruno P., and Barnaś J. J. Magn. Magn. Mater. 240 (2002) 200
15. Dugaev V.K., Bruno P., and Barnaś J. J. Magn. Magn. Mater. 242 (2002) 461
16. de Moura F.A.B.F., Coutinho-Filho M.D., Raposo E.P., and Lyra M.L. Phys. Rev. B 66 (2002) 014418
17. Dean P. Proc. Phys. Soc. 84 (1964) 727
18. Izrailev F.M., and Krokhin A.A. Phys. Rev. Lett. 82 (1999) 4062
19. Izrailev F.M., Krokhin A.A., and Ulloa S.E. Phys. Rev. B 63 (2001) 41102
20. de Moura F.A.B.F., and Lyra M.L. Phys. Rev. Lett. 81 (1998) 3735
21. de Moura F.A.B.F., and Lyra M.L. Physica A 266 (1999) 465
22. de Moura F.A.B.F., Coutinho-Filho M.D., Raposo E.P., and Lyra M.L. Phys. Rev. 68 (2003) 012202
23. Domínguez-Adame F., Malyshev V.A., de Moura F.A.B.F., and Lyra M.L. Phys. Rev. Lett. 91 (2003) 197402
24. de Moura F.A.B.F., Coutinho-Filho M.D., Raposo E.P., and Lyra M.L. Europhys. Lett. 66 (2004) 585
25. Nascimento E.M., de Moura F.A.B.F., and Lyra M.L. Phys. Rev. B 72 (2005) 224420