Abstract:
We solve the SU(N) Heisenberg spin-glass model in the limit of large N focusing on the dynamical spin susceptibility. We show that the results for the model at S = 3/2, which is appropriate for the SrCr9xGa12-9xO19 compound, have a qualitative behavior in close agreement with neutron-scattering data. Quantum fluctuations produce a significant transfer of spectral weight to higher frequencies, while thermal fluctuations are responsible for a dramatic change in the low-frequency part of the dynamical spin susceptibility where T becomes comparable to the spin-glass transition temperature. © 2004 The American Physical Society.
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Citas:
---------- APA ----------
Camjayi, A. & Rozenberg, M.J.
(2004)
. Anomalous dynamical spin susceptibility in the SU(N) Heisenberg spin-glass model and SrCr9xGa12-9xO19. Physical Review B - Condensed Matter and Materials Physics, 69(2).
http://dx.doi.org/10.1103/PhysRevB.69.020404---------- CHICAGO ----------
Camjayi, A., Rozenberg, M.J.
"Anomalous dynamical spin susceptibility in the SU(N) Heisenberg spin-glass model and SrCr9xGa12-9xO19"
. Physical Review B - Condensed Matter and Materials Physics 69, no. 2
(2004).
http://dx.doi.org/10.1103/PhysRevB.69.020404---------- MLA ----------
Camjayi, A., Rozenberg, M.J.
"Anomalous dynamical spin susceptibility in the SU(N) Heisenberg spin-glass model and SrCr9xGa12-9xO19"
. Physical Review B - Condensed Matter and Materials Physics, vol. 69, no. 2, 2004.
http://dx.doi.org/10.1103/PhysRevB.69.020404---------- VANCOUVER ----------
Camjayi, A., Rozenberg, M.J. Anomalous dynamical spin susceptibility in the SU(N) Heisenberg spin-glass model and SrCr9xGa12-9xO19. Phys. Rev. B Condens. Matter Mater. Phys. 2004;69(2).
http://dx.doi.org/10.1103/PhysRevB.69.020404