Crystal field and magnetic ordering in the Haldane-chain compound Er2BaNiO5 as studied by optical spectroscopy

High-resolution absorption spectra of the chain compound Er2BaNiO5 were measured in a wide range of frequencies (6000–20,000cm−1) and temperatures (2.5–300K). Energies of 38 crystal-field levels of Er3+ in a paramagnetic Er2BaNiO5 were determined. Exchange splittings of crystal-field levels in the a...

Full description

Saved in:
Bibliographic Details
Published inJournal of alloys and compounds Vol. 380; no. 1-2; pp. 84 - 88
Main Authors Popova, M.N., Klimin, S.A., Chukalina, E.P., Levitin, R.Z., Mill, B.V., Malkin, B.Z., Antic-Fidancev, E.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 20.10.2004
Subjects
Absorption
Crystal-field calculations
Er3
Exchange splittings
Phase transition
Crystal-field calculations
Absorption
Er3
Phase transition
Exchange splittings
Online AccessGet full text

Cover

More Information
Summary:High-resolution absorption spectra of the chain compound Er2BaNiO5 were measured in a wide range of frequencies (6000–20,000cm−1) and temperatures (2.5–300K). Energies of 38 crystal-field levels of Er3+ in a paramagnetic Er2BaNiO5 were determined. Exchange splittings of crystal-field levels in the antiferromagnetically ordered state (TN=34K) were measured. Crystal-field calculations were performed and the obtained wave functions were used to calculate the temperature dependence of the magnetic susceptibility to be compared with the detailed experimental dependence measured in this work.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2004.03.032