[formula omitted] NMR study of charge ordering in AV 6O 15 (A=Ca, Na and Ag)

We made 51 V NMR experiments to study local magnetic properties of β-AV 6O 15 (A=Ca, Na and Ag). In CaV 6O 15 we observed at 149 K a change of the 51 V NMR spectrum accompanied by the charge ordering from a mixed valence state to an ordering state of V 4+ and V 5+. In NaV 6O 15 (AgV 6O 15) a change...

Full description

Saved in:
Bibliographic Details
Published inPhysica. B, Condensed matter Vol. 281; pp. 606 - 607
Main Authors Itoh, Masayuki, Akimoto, Nobuyuki, Tsuchiya, Michitoshi, Hiroyuki Yamada, Isobe, Masahiko, Ueda, Yutaka
Format Journal Article
LanguageEnglish
Published Elsevier B.V 2000
Subjects
AV 6O 15
Charge ordering
NMR
NMR
Charge ordering
AV 6O 15
Online AccessGet full text

Cover

More Information
Summary:We made 51 V NMR experiments to study local magnetic properties of β-AV 6O 15 (A=Ca, Na and Ag). In CaV 6O 15 we observed at 149 K a change of the 51 V NMR spectrum accompanied by the charge ordering from a mixed valence state to an ordering state of V 4+ and V 5+. In NaV 6O 15 (AgV 6O 15) a change of the 51 V NMR spectrum due to the charge ordering was also observed at 130 (90) K. Thus, the charge ordering is a phase transition which commonly takes place in β-AV 6O 15 (A=Ca, Na and Ag).
ISSN:0921-4526
1873-2135
DOI:10.1016/S0921-4526(99)01036-4