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Nuclear Quadrupole Effect and Phase Transition in the Quasi‐One‐Dimensional Conductor β‐Na 0.33 V 2 O 5
Author(s) -
Onoda M.,
Takahashi T.,
Nagasawa H.
Publication year - 1982
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221090239
Subject(s) - electric field gradient , quadrupole , nuclear quadrupole resonance , phase transition , vanadium , tensor (intrinsic definition) , phase (matter) , resonance (particle physics) , principal axis theorem , conductor , nuclear magnetic resonance , field (mathematics) , line (geometry) , chemistry , atomic physics , condensed matter physics , materials science , physics , geometry , inorganic chemistry , mathematics , organic chemistry , pure mathematics , composite material
The angular dependence of the main NMR resonance lines of the 51 V nuclei in β‐Na 0.33 V 2 O 5 is measured above and below the first‐order structural phase transition temperature in the frequency range between 10 and 20 MHz. The nuclear quadrupole interaction parameters of the broad resonance line are determined, and the principal axes of the electric field gradient tensor are found to coincide with those of the crystalline field around the vanadium atoms in site I.