en
Scientific article
English

Exchange interactions in mixed Yb3+-Cr3+ and Yb3+-Ho3+ dimers: An inelastic-neutron-scattering investigation of Cs3Yb1.8Cr0.2Br9 and Cs3Yb1.8Ho0.2Br9

Published inPhysical review. B, Condensed matter and materials physics, vol. 48, no. 1-2, p. 12723-12731
Publication date1993
Abstract

The two title compounds were synthesized and investigated with the inelastic-neutron-scattering (INS) technique. They contain mixed YbMBr93- (M=Cr3+, Ho3+) dimers as discrete units, and the magnetic excitations of mixed Yb3+-Cr3+ and Yb3+-Ho3+ dimers could thus be observed. The Yb3+-Cr3+ dimer has three INS transitions, for which anisotropic exchange, as well as zero-field splitting of Cr3+, has to be included in the exchange Hamiltonian. For the Yb3+-Ho3+ dimer the effect of the exchange interaction manifests itself as a broadening and a splitting of the crystal-electric-field levels of the isolated Ho3+ ion. Taking into account the full (2J+1) ground-state multiplet of Ho3+, as well as anisotropic exchange, gives a satisfactory description of this dimer.

Research group
Citation (ISO format)
AEBERSOLD, M. A. et al. Exchange interactions in mixed Yb3+-Cr3+ and Yb3+-Ho3+ dimers: An inelastic-neutron-scattering investigation of Cs3Yb1.8Cr0.2Br9 and Cs3Yb1.8Ho0.2Br9. In: Physical review. B, Condensed matter and materials physics, 1993, vol. 48, n° 1-2, p. 12723–12731. doi: 10.1103/PhysRevB.48.12723
Identifiers
ISSN of the journal1098-0121
537views
0downloads

Technical informations

Creation09/21/2009 4:11:26 PM
First validation09/21/2009 4:11:26 PM
Update time03/14/2023 3:13:15 PM
Status update03/14/2023 3:13:15 PM
Last indexation01/15/2024 6:52:51 PM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack