spin-state transition

https://doi.org/10.1351/goldbook.S05877
An electronic transition from a @LT06788@ state to a @LT07067@, or vice versa. Example: With an increase in temperature Co3+ ions in LaCoO3 transform from a @LT07067@ (\(\text{t}_{\text{2g}}^{6}\text{e}_{\text{g}}^{0}\)) to the @LT06788@ state (\(\text{t}_{\text{2g}}^{4}\text{e}_{\text{g}}^{2}\)).
Source:
PAC, 1994, 66, 577. (Definitions of terms relating to phase transitions of the solid state (IUPAC Recommendations 1994)) on page 591 [Terms] [Paper]
Cite as: IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). Online version (2019-) created by S. J. Chalk. ISBN 0-9678550-9-8. https://doi.org/10.1351/goldbook.
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Last revised: February 24, 2014