scholarly journals Nonpercolative nature of the metal-insulator transition and persistence of local Jahn-Teller distortions in the rhombohedral regime ofLa1−xCaxMnO3

2016 ◽  
Vol 93 (16) ◽  
Author(s):  
Mouath Shatnawi ◽  
Emil S. Bozin ◽  
J. F. Mitchell ◽  
Simon J. L. Billinge
2001 ◽  
Vol 15 (27) ◽  
pp. 3551-3558 ◽  
Author(s):  
S. BASAK ◽  
I. CHAUDHURI ◽  
S. K. GHATAK

The effect of strain on the resistivity and thermopower of ferromagnetic manganites has been examined based on the model that incorporates the electron-lattice interaction through the Jahn–Teller effect and an effective hopping determined by nearest neighbor spin–spin correlation of t2g electrons. The metal insulator transition temperature associated with resistivity decreases with increase in strain. In the presence of large strain the system remains in the semiconducting state. Thermopower (S) is positive and increasing function of strain and it exhibits a maximum with temperature. The temperature where maximum of S appears, shifts towards higher (lower) value in the presence of magnetic field (strain). A large magneto-thermopower that depends on strain is obtained around metal–insulator transition.


1999 ◽  
Vol 11 (1) ◽  
pp. 109-120 ◽  
Author(s):  
O Toulemonde ◽  
F Millange ◽  
F Studer ◽  
B Raveau ◽  
J-H Park ◽  
...  

2004 ◽  
Vol 114 ◽  
pp. 277-281 ◽  
Author(s):  
J. Wosnitza ◽  
J. Hagel ◽  
O. Stockert ◽  
C. Pfleiderer ◽  
J. A. Schlueter ◽  
...  

2018 ◽  
Vol 2 (8) ◽  
Author(s):  
Yoshiko Nanao ◽  
Yoshiharu Krockenberger ◽  
Ai Ikeda ◽  
Yoshitaka Taniyasu ◽  
Michio Naito ◽  
...  

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