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Saturation field of frustrated chain cuprates: broad regions of predominant interchain coupling

A thermodynamic method to extract the interchain coupling (IC) of spatially anisotropic 2D or 3D spin-1/2 systems from their empirical saturation field Hs (T=0) is proposed. Using modern theoretical methods we study how Hs is affected by an antiferromagnetic (AFM) IC between frustrated chains descri...

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Hauptverfasser: Nishimoto, Satoshi (VerfasserIn) , Drechsler, S.-L. (VerfasserIn) , Kuzian, R. O. (VerfasserIn) , van den Brink, J. (VerfasserIn) , Richter, J. (VerfasserIn) , Lorenz, W. E. A. (VerfasserIn) , Skourski, Y. (VerfasserIn) , Klingeler, Rüdiger (VerfasserIn) , Büchner, B. (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 22 August 2011
In: Physical review letters
Year: 2011, Jahrgang: 107, Heft: 9, Pages: 1-4
ISSN:1079-7114
DOI:10.1103/PhysRevLett.107.097201
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevLett.107.097201
Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.107.097201
Volltext
Verfasserangaben:S. Nishimoto, S.-L. Drechsler, R.O. Kuzian, J. van den Brink, J. Richter, W.E.A. Lorenz, Y. Skourski, R. Klingeler, and B. Büchner
Beschreibung
Zusammenfassung:A thermodynamic method to extract the interchain coupling (IC) of spatially anisotropic 2D or 3D spin-1/2 systems from their empirical saturation field Hs (T=0) is proposed. Using modern theoretical methods we study how Hs is affected by an antiferromagnetic (AFM) IC between frustrated chains described in the J1−J2-spin model with ferromagnetic 1st and AFM 2nd neighbor in-chain exchange. A complex 3D-phase diagram has been found. For Li2CuO2 and Ca2Y2Cu5O10, we show that Hs is solely determined by the IC and predict Hs≈61 T for the latter. With Hs≈55 T from magnetization data one reads out a weak IC for Li2CuO2 close to that obtained from inelastic neutron scattering.
Beschreibung:Gesehen am 28.09.2022
Beschreibung:Online Resource
ISSN:1079-7114
DOI:10.1103/PhysRevLett.107.097201

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