Abstract
Compression and heating of Li0.95Mn2.05O4 induce a unique three-way switch. We demonstrate the possibility of tuning of the structural properties and the induction of phase transitions by changing the external pressure and temperature, and hence changing the lattice strain.
Highlights
Cooperative static and dynamic orbital ordering enables the development of oxides to make a switchable material that could be used in certain speci c applications.[1]
Results presented are consistent with the earlier observations for LiMn2O4,20,21 which suggest a speci c mechanism for the lithium–manganese samples compressed beyond the limit of hydrostaticity
Similar suppression of the cooperative Jahn– Teller effect is manifested in the angledispersive X-ray diffraction (ADXRD) high temperature experiment for the tetragonal phase of c/a0 < 1 (ESI Fig. S5†), which in Fig. 6 can be observed as an increase in the c/a0 ratio
Summary
Cooperative static and dynamic orbital ordering enables the development of oxides to make a switchable material that could be used in certain speci c applications.[1]. We report on the Jahn–Teller switching between two tetragonal structures, which is induced by high pressure.
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