期刊
PHYSICAL REVIEW LETTERS
卷 106, 期 24, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.106.246406
关键词
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资金
- Welch Foundation [F-100]
- Spanish Ministerio de Ciencia y Tecnologa [FIS2009-07083]
Based on the earlier revealed hidden pseudo Jahn-Teller effect which essentially involves excited electronic states we show that, with extension to solids, polyatomic systems with half-filled degenerate shells, e(2) or t(3), form a novel (practically inexhaustible) class of molecular and solid state materials with correlated and switchable magnetic and dielectric bistabilities. The latter are confirmed by state-of-the-art ab initio calculations, including estimation of lifetimes, for several representatives of this class, which also reveal a giant magnetoelastic effect in LiCuO2 and NaCuO2 crystals.
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