2001/04/16 by S. Basak, Shamik Basak, I. Chaudhuri +2
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Condensed matter physics #Electrical resistivity and conductivity #Electron #Ferromagnetism #Magnetic and transport properties of perovskites and related materials #Manganite #Materials science #Metal #Metal–insulator transition #Physics #Rare-earth and actinide compounds #Seebeck coefficient #Strain (injury) #cond-mat.str-el
paper · pdf · doi:10.1142/s021797920100735x
11pages, 4 figures
arxiv created 2001/04/16 · openalex publication_date 2001/10/30 · arxiv updated 2009/11/30 · openalex created_date 2020/11/23 · openalex updated_date 2026/08/05
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 t 2 g 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.