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The semimetallic S = 1/2 antiferromagnetic chain Yb 4 As 3 : quantum transfer‐matrix simulations and experimental field‐dependent specific‐heat data
Author(s) -
Matysiak R.,
Kamieniarz G.,
Gegenwart P.,
Aoki H.,
Ochiai A.,
Steglich F.
Publication year - 2003
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200301748
Subject(s) - antiferromagnetism , isotropy , field (mathematics) , heisenberg model , quantum , transfer matrix , matrix (chemical analysis) , condensed matter physics , physics , magnetic field , transfer matrix method (optics) , chain (unit) , s matrix , quantum mechanics , materials science , mathematics , computer science , pure mathematics , composite material , computer vision , scattering
The S =1/2 antiferromagnetic Heisenberg model with the Dzyaloshinsky–Moriya interaction is applied to Yb 4 As 3 . In this paper we calculate the specific heat of this model, mapped onto the isotropic Heisenberg model with both uniform field B x and staggered field B y s , by the numerical quantum transfer‐matrix (QTM) method and we present new experimental results for the polydomain sample in the applied field.