Infinite-range quantum random Heisenberg magnet
We study with exact diagonalization techniques the Heisenberg model for a system of SU(2) spins with (formula presented) and random infinite-range exchange interactions. We calculate the critical temperature (formula presented) for the spin-glass to paramagnetic transition. We obtain (formula presen...
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| Publicado: |
2002
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| Acceso en línea: | Registro en Scopus DOI Handle Registro en la Biblioteca Digital |
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| LEADER | 04868caa a22005777a 4500 | ||
|---|---|---|---|
| 001 | PAPER-16659 | ||
| 003 | AR-BaUEN | ||
| 005 | 20241001121510.0 | ||
| 008 | 190411s2002 xx ||||fo|||| 00| 0 eng|d | ||
| 024 | 7 | |2 scopus |a 2-s2.0-85038278486 | |
| 040 | |a Scopus |b spa |c AR-BaUEN |d AR-BaUEN | ||
| 100 | 1 | |a Arrachea, Liliana del Carmen | |
| 245 | 1 | 0 | |a Infinite-range quantum random Heisenberg magnet |
| 260 | |c 2002 | ||
| 504 | |a Fischer, K.H., Hertz, J.A., (1991) Spin Glasses, , Cambridge University Press, Cambridge, England | ||
| 504 | |a Sachdev, S., (1999) Quantum Phase Transitions, , Cambridge University Press, Cambridge, England | ||
| 504 | |a Reich, D.H., (1990) Phys. Rev. B, 42, p. 4631 | ||
| 504 | |a Wu, W., (1991) Phys. Rev. Lett., 67, p. 2076 | ||
| 504 | |a Wu, W., (1993) Phys. Rev. Lett., 71, p. 1919 | ||
| 504 | |a Brooke, J., Bitko, D., Rosenbaum, T.F., Aeppli, G., (1999) Science, 284, p. 779 | ||
| 504 | |a Urano, C., Nohara, M., Kondo, S., Sakai, F., Takagi, H., Shiraki, T., Okubo, T., (2000) Phys. Rev. Lett., 85, p. 1052 | ||
| 504 | |a Dagoto, E., (1994) Rev. Mod. Phys., 66, p. 763 | ||
| 504 | |a Rieger, H., Young, A.P., (1997) Complex Behavior of Glassy Systems, Vol. 492 of Lecture Notes in Physics, p. 254. , edited by J. M. Rubi and C. Perez-Vicente (Springer Verlag, Berlin | ||
| 504 | |a Binder, K., Young, A.P., (1986) Rev. Mod. Phys., 58, p. 801 | ||
| 504 | |a Parisi, G., (1979) Phys. Rev. Lett., 23, p. 1754 | ||
| 504 | |a Arrachea, L., Rozenberg, M.J., (2001) Phys. Rev. Lett., 86, p. 5172 | ||
| 504 | |a Rozenberg, M.J., Arrachea, L., Physica B, , to be published | ||
| 504 | |a Bray, A.J., Moore, M.A., (1980) J. Phys. C, 13, p. L655 | ||
| 504 | |a Grempel, D.R., Rozenberg, M.J., (1998) Phys. Rev. Lett., 80, p. 389 | ||
| 504 | |a Sachdev, S., Ye, J., (1993) Phys. Rev. Lett., 70, p. 3339 | ||
| 504 | |a Georges, A., Parcollet, O., Sachdev, S., (2000) Phys. Rev. Lett., 85, p. 840 | ||
| 504 | |a Georges, A., Parcollet, O., Sachdev, S., (2001) Phys. Rev. B, 63, p. 134406 | ||
| 504 | |a Gagliano, E.R., Dagotto, E., Moreo, A., Alcaraz, F.C., (1986) Phys. Rev. B, 34, p. 1677 | ||
| 504 | |a Arrachea, L., (2000) Phys. Rev. B, 62, p. 10033 | ||
| 504 | |a Rozenberg, M.J., Grempel, D.R., (1998) Phys. Rev. Lett., 81, p. 2550 | ||
| 504 | |a We focus our discussion to ground states with (formula presented), adopting a basis within the (formula presented) representation. Nevertheless, our arguments can be generalized to the other spin components; Forster, D., (1994) Hydrodynamic Fluctuations, Broken Symmetry, and Correlation Functions, , Addison Wesley, New York | ||
| 504 | |a Sherrington, D., Kirkpatrick, S., (1975) Phys. Rev. Lett., 35, p. 1792 | ||
| 506 | |2 openaire |e Política editorial | ||
| 520 | 3 | |a We study with exact diagonalization techniques the Heisenberg model for a system of SU(2) spins with (formula presented) and random infinite-range exchange interactions. We calculate the critical temperature (formula presented) for the spin-glass to paramagnetic transition. We obtain (formula presented) in good agreement with previous quantum Monte Carlo and analytical estimates. We provide a detailed picture for the different kind of excitations which intervene in the dynamical response (formula presented) at (formula presented) and analyze their evolution as T increases. We also calculate the specific heat (formula presented) We find that it displays a smooth maximum at (formula presented) in good qualitative agreement with experiments. We argue that the fact that (formula presented) is due to a quantum disorder effect. © 2002 The American Physical Society. |l eng | |
| 593 | |a Departamento de Física, FCEyN Universidad de Buenos Aires, Ciudad Universitaria, Pabellón I, Buenos Aires, 1428, Argentina | ||
| 593 | |a Scuola Internazionale Superiore di Studi Avanzati (SISSA), Istituto Nazionale per la Fisica della Materia (INFM), Unità di Ricerca Trieste-SISSA, Via Beirut 4, Trieste, I-34014, Italy | ||
| 700 | 1 | |a Rozenberg, M.J. | |
| 773 | 0 | |d 2002 |g v. 65 |h pp. 1-11 |k n. 22 |p Phys. Rev. B Condens. Matter Mater. Phys. |x 10980121 |t Physical Review B - Condensed Matter and Materials Physics | |
| 856 | 4 | 1 | |u https://www.scopus.com/inward/record.uri?eid=2-s2.0-85038278486&doi=10.1103%2fPhysRevB.65.224430&partnerID=40&md5=87080bbce5e6dfa98df1dea849cd3d3c |y Registro en Scopus |
| 856 | 4 | 0 | |u https://doi.org/10.1103/PhysRevB.65.224430 |y DOI |
| 856 | 4 | 0 | |u https://hdl.handle.net/20.500.12110/paper_10980121_v65_n22_p1_Arrachea |y Handle |
| 856 | 4 | 0 | |u https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10980121_v65_n22_p1_Arrachea |y Registro en la Biblioteca Digital |
| 961 | |a paper_10980121_v65_n22_p1_Arrachea |b paper |c PE | ||
| 962 | |a info:eu-repo/semantics/article |a info:ar-repo/semantics/artículo |b info:eu-repo/semantics/publishedVersion | ||
| 963 | |a VARI | ||
| 999 | |c 77612 | ||