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Estimate of the d–d Overlap of V 2 O 5 from ESR Measurements
Author(s) -
Sperlich G.,
Lazé W. D.
Publication year - 1974
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.2220650221
Subject(s) - hyperfine structure , vanadium , ion , coulomb , atomic orbital , electron , spectral line , atomic physics , field (mathematics) , chemistry , condensed matter physics , physics , inorganic chemistry , mathematics , quantum mechanics , organic chemistry , pure mathematics
ESR spectra are given of d electrons which are localized in the randomly arranged Coulomb fields of Li + and Cu + ions in single crystals of Li x V 2 O 5 and Cu x V 2 O 5 ( x ⪅ 0.01). A localization within four vanadium 3d orbitals is derived from the hyperfine spectra. A resolved hyperfine splitting disappears at temperatures below about 15 K. The corresponding variation of the nonperiodic Coulomb field allows a rough estimate of the d‐overlap integral.