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  Influence of interchain-coupling effects on the low-T properties of the one-dimensional S=1/2 Heisenberg antiferromagnet Yb4As3

Aoki, H., Cichorek, T., Gegenwart, P., Custers, J., Lang, M., Ochiai, A., et al. (2002). Influence of interchain-coupling effects on the low-T properties of the one-dimensional S=1/2 Heisenberg antiferromagnet Yb4As3. Physica B-Condensed Matter, 312, 367-369. doi:10.1016/S0921-4526(01)01547-2.

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Aoki, H.1, Autor           
Cichorek, T.1, Autor           
Gegenwart, P.1, Autor           
Custers, J.1, Autor           
Lang, M.1, Autor           
Ochiai, A., Autor
Steglich, F.2, Autor           
Affiliations:
1Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863404              
2Frank Steglich, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863467              

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Schlagwörter: Yb4As3; sine-Gordon model; spin-glass anomaly; interchain coupling
 Zusammenfassung: We have investigated the difference in the low-T specific heat, C(T, B), of single- and multi-domain Yb4As3 crystals in magnetic fields Bless than or equal to4 T. Upon increasing field, which was applied parallel to the trigonal axis, the C(T)/T values of the single-domain sample have been found to be less reduced than that of the multi-domain one. Furthermore, a minimum value of C(T)/T which is unaffected at Bgreater than or equal to1 T is observed for the single-domain sample around 0.25 K. This behavior cannot be explained by the S = 1/2; Heisenberg antiferromagnet with the intrachain coupling determined by the inelastic neutron scattering. The interchain coupling appears to be responsible for the reported C(T)/T behavior below 1 K. (C) 2002 Elsevier Science B.V. All rights reserved.

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Sprache(n): eng - English
 Datum: 2002-03
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: eDoc: 16307
ISI: 000175871000137
DOI: 10.1016/S0921-4526(01)01547-2
 Art des Abschluß: -

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Titel: Physica B-Condensed Matter
  Alternativer Titel : Physica B
Genre der Quelle: Zeitschrift
 Urheber:
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Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 312 Artikelnummer: - Start- / Endseite: 367 - 369 Identifikator: ISSN: 0921-4526