Polarized-neutron study on 4f-electron wave functions of magnetic-polaron state in CeP

Citation
K. Iwasa et al., Polarized-neutron study on 4f-electron wave functions of magnetic-polaron state in CeP, J PHYS CH S, 60(8-9), 1999, pp. 1185-1188
Citations number
8
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
ISSN journal
0022-3697 → ACNP
Volume
60
Issue
8-9
Year of publication
1999
Pages
1185 - 1188
Database
ISI
SICI code
0022-3697(199908/09)60:8-9<1185:PSO4WF>2.0.ZU;2-6
Abstract
The magnetic form factors of Ce ions in CeP have been studied by unpolarize d and polarized neutron diffraction, The measured form factor in the type-I antiferromagnetic phase (H = 0 and T = 2 K) agrees with the calculation fo r a Gamma(7) crystal-field ground state. On the contrary, the data at H = 3 T and T = 1.7 K (in the so-called "phase I") and that at H = 5.5 T and T = 12 K (in "phase III") indicate that the Ce ions with large moments appeari ng in these structures are in a strongly polarized state very close to the crystal-field state Gamma(8). This result supports the view that a Gamma(8) -like wave function is stabilized by the formation of a magnetic-polaron st ate. (C) 1999 Elsevier Science Ltd. All rights reserved.