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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| Auteurs principaux: | , , , , , , , , |
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| Format: | Article (Journal) |
| Langue: | anglais |
| Publié: |
22 August 2011
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| In: |
Physical review letters
Year: 2011, Volume: 107, Numéro: 9, Pages: 1-4 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.107.097201 |
| Accès en ligne: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevLett.107.097201 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.107.097201 
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| Notes sur l'auteur: | 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 |
| Résumé: | 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. |
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| Description: | Gesehen am 28.09.2022 |
| Description matérielle: | Online Resource |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.107.097201 |