Ca.sub.2./sub.Y.sub.2./sub.Cu.sub.5./sub.O.sub.10./sub.: The first frustrated quasi-1D ferromagnet close to criticality

0384230 - FZÚ 2013 RIV US eng J - Článek v odborném periodiku
Kuzian, R.O. - Nishimoto, S. - Drechsler, S.L. - Málek, Jiří - Johnston, D. - van den Brink, J. - Schmitt, M. - Rösner, H. - Matsuda, M. - Oka, K. - Yamaguchi, H. - Ito, T.
Ca₂Y₂Cu₅O₁₀: The first frustrated quasi-1D ferromagnet close to criticality.
Physical Review Letters. Roč. 109, č. 11 (2012), "117209-1"-"117209-5". ISSN 0031-9007. E-ISSN 1079-7114
Výzkumný záměr: CEZ:AV0Z10100520
Klíčová slova: inelastic neutron scattering * exchange integrals * RIXS spectra
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
Impakt faktor: 7.943, rok: 2012

From inelastic neutron scattering data we extract exchange integrals J1 and J2, both significantly larger than previous estimates. We establish that vicinity to criticality results in dramatic temperature dependence of Zhang-Rice singlet excitations.
Trvalý link: http://hdl.handle.net/11104/0213942