Artículo

La versión final de este artículo es de uso interno. El editor solo permite incluir en el repositorio el artículo en su versión post-print. Por favor, si usted la posee enviela a
Consulte la política de Acceso Abierto del editor

Abstract:

A study to investigate the quantum and thermal fluctuations in the SU(N) Heisenberg spin-glass model near the quantum critical point was presented. The effect of quantum and thermal fluctuations in the frequency dependent response function was studied with observation of transfers of spectral weight. A remarkable qualitative agreement with various experiments on the quantum frustrated magnet SrCr9pGa12-9pO19 was observed.

Registro:

Documento: Artículo
Título:Quantum and thermal fluctuations in the SU(N) heisenberg spin-glass model near the quantum critical point
Autor:Camjayi, A.; Rozenberg, M.J.
Filiación:Departamento de Física, FCEN, Cd. Universitaria Pabellón I, 1428 Buenos Aires, Argentina
Palabras clave:Magnets; Specific heat; Spin glass; Thermal fluctuations; Quantum theory
Año:2003
Volumen:90
Número:21
Página de inicio:2172021
Página de fin:2172024
Título revista:Physical Review Letters
Título revista abreviado:Phys Rev Lett
ISSN:00319007
CODEN:PRLTA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v90_n21_p2172021_Camjayi

Referencias:

  • Fischer, K.H., Hertz, J.A., (1991) Spin Glasses, , Cambridge University Press, Cambridge, England
  • Mézard, M., Parisi, G., Virasoro, M., (1987) Spin Glass Theory and Beyond, , World Scientific, Singapore
  • Rieger, H., Young, A.P., Quantum spin glasses (1997) Lecture Notes in Physics, 492, p. 254. , edited by J. M. Rubi and C. Perez-Vicente (Springer Verlag, Berlin)
  • Binder, K., Young, A.P., (1986) Rev. Mod. Phys., 58, p. 801
  • Sachdev, S., (1999) Quantum Phase Transitions, , Cambridge University Press, Cambridge, England
  • Reich, D.H., (1990) Phys. Rev. B, 42, p. 4631
  • Wu, W., (1991) Phys. Rev. Lett., 67, p. 2076
  • Wu, W., (1993) Phys. Rev. Lett., 71, p. 1919
  • Brooke, J., Bitko, D., Rosenbaum, T.F., Aeppli, G., (1999) Science, 284, p. 779
  • Obradors, X., (1990) Solid State Commun., 65, p. 189
  • Ramirez, A., (1992) Phys. Rev. B, 45, p. 2505
  • Lee, S.-H., (1996) Europhys. Lett., 35, p. 127
  • Mondelli, C., (1999) Physics B, 266, p. 104
  • Limot, L., (2002) Phys. Rev. B, 65, p. 144447. , and references therein
  • Bray, A.J., Moore, M.A., (1980) J. Phys., C13, pp. L655
  • Sachdev, S., Ye, J., (1993) Phys. Rev. Lett., 70, p. 3339
  • Georges, A., Parcollet, O., Sachdev, S., (2000) Phys. Rev. Lett., 85, p. 840
  • Georges, A., Parcollet, O., Sachdev, S., (2001) Phys. Rev. B, 63, p. 134406
  • Kopeć, T.K., (1995) Phys. Rev. B, 52, p. 9590
  • Grempel, D.R., Rozenberg, M.J., (1998) Phys. Rev. Lett., 80, p. 389
  • Arrachea, L., Rozenberg, M.J., (2001) Phys. Rev. Lett., 86, p. 5172
  • Arrachea, L., Rozenberg, M.J., (2002) Phys. Rev. B, 65, p. 224430
  • We checked the reliability of the analytic continuation for different choices of number of frequency points; Sherrington, D., Kirkpatrick, S., (1975) Phys. Rev. Lett., 35, p. 1792
  • To obtain accurate results we had to use up to about 2 × 106 Matsubara frequency points

Citas:

---------- APA ----------
Camjayi, A. & Rozenberg, M.J. (2003) . Quantum and thermal fluctuations in the SU(N) heisenberg spin-glass model near the quantum critical point. Physical Review Letters, 90(21), 2172021-2172024.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v90_n21_p2172021_Camjayi [ ]
---------- CHICAGO ----------
Camjayi, A., Rozenberg, M.J. "Quantum and thermal fluctuations in the SU(N) heisenberg spin-glass model near the quantum critical point" . Physical Review Letters 90, no. 21 (2003) : 2172021-2172024.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v90_n21_p2172021_Camjayi [ ]
---------- MLA ----------
Camjayi, A., Rozenberg, M.J. "Quantum and thermal fluctuations in the SU(N) heisenberg spin-glass model near the quantum critical point" . Physical Review Letters, vol. 90, no. 21, 2003, pp. 2172021-2172024.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v90_n21_p2172021_Camjayi [ ]
---------- VANCOUVER ----------
Camjayi, A., Rozenberg, M.J. Quantum and thermal fluctuations in the SU(N) heisenberg spin-glass model near the quantum critical point. Phys Rev Lett. 2003;90(21):2172021-2172024.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v90_n21_p2172021_Camjayi [ ]