Saturation field of frustrated chain cuprates

• Verfasst von: Nishimoto, Satoshi [VerfasserIn]
• Verfasst von: Drechsler, S.-L. [VerfasserIn]
• Verfasst von: Kuzian, R. O. [VerfasserIn]
• Verfasst von: van den Brink, J. [VerfasserIn]
• Verfasst von: Richter, J. [VerfasserIn]
• Verfasst von: Lorenz, W. E. A. [VerfasserIn]
• Verfasst von: Skourski, Y. [VerfasserIn]
• Verfasst von: Klingeler, Rüdiger [VerfasserIn]
• Verfasst von: Büchner, B. [VerfasserIn]
• Titel: Saturation field of frustrated chain cuprates
• Titelzusatz: broad regions of predominant interchain coupling
• Verf.angabe: 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
• E-Jahr: 2011
• Jahr: 22 August 2011
• Umfang: 4 S.
• Fussnoten: Gesehen am 28.09.2022
• Titel Quelle: Enthalten in: Physical review letters
• Ort Quelle: College Park, Md. : APS, 1958
• Jahr Quelle: 2011
• Band/Heft Quelle: 107(2011), 9, Artikel-ID 097201, Seite 1-4
• ISSN Quelle: 1079-7114
• DOI: doi:10.1103/PhysRevLett.107.097201
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1817715216

Abstract

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.