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
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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
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Palabras clave: | Magnets; Specific heat; Spin glass; Thermal fluctuations; Quantum theory |
Año: | 2003
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Volumen: | 90
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Número: | 21
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Página de inicio: | 2172021
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Página de fin: | 2172024
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Título revista: | Physical Review Letters
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Título revista abreviado: | Phys Rev Lett
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ISSN: | 00319007
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CODEN: | PRLTA
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v90_n21_p2172021_Camjayi |
Referencias:
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- 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 [ ]