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Electron‐lattice correlations and phase transitions in CMR manganites
Author(s) -
Moshnyaga V.,
Samwer K.
Publication year - 2011
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.201100040
Subject(s) - polaron , condensed matter physics , superlattice , ground state , magnetism , materials science , manganite , electric field , lattice (music) , electron , phase transition , doping , perovskite (structure) , physics , ferromagnetism , chemistry , quantum mechanics , acoustics , crystallography
Interrelations between global and local structure and magnetism and transport in three‐dimensional perovskite manganites is reviewed and compared with recent studies on thin films and superlattices. The concept of correlated Jahn‐Teller (JT) polarons is discussed within the phase separation scenario; their role in the local and global structural modifications of manganites is demonstrated. Polaron correlations, affected by external control parameters (temperature, electric and magnetic fields, doping, light, strain) may be very efficient to modify the ground state of manganites. Examples of electronic control of the structure by means of interface modifications, electric field and mechanical strain are highlighted.