Dynamic Jahn-Teller Effect and Colossal Magnetoresistance in La 1-x Sr x MnO 3
TLDR
A model which incorporates the physics of dynamic Jahn-Teller and double-exchange effects is presented and solved via a dynamical mean field approximation to reproduce the behavior of the resistivity and magnetic transition temperature observed in Sr_x MnO_3.Abstract:
A model for the doped rare-earth manganites such as ${\mathrm{La}}_{1\ensuremath{-}x}{\mathrm{Sr}}_{x}{\mathrm{MnO}}_{3}$ incorporating the physics of dynamic Jahn-Teller and double-exchange effects is presented and solved via a dynamical mean field approximation. The interplay of these two effects as the electron phonon coupling is varied reproduces the observed behavior of the resistivity and magnetic transition temperature.read more
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Strong influence of polaron-polaron interaction on the magnetoresistance effect in La0.7A0.3MnO3 thin films
TL;DR: Using ultrafast optical spectroscopy to track the polaron dynamics around Curie temperatures, Wang et al. as discussed by the authors observed a diverse two-step recovery process in three sibling manganite thin films with various magnetoresistance effects.
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Effect of annealing environments on structural and electrical properties of La0.5Nd0.5MnO3 manganites
Bhagyashree Udeshi,Keval Gadani,Keval Gadani,K.N. Rathod,Hetal Boricha,V.G. Shrimali,Sapana Solanki,Alpa Zankat,V.S. Vadgama,Manan Gal,Davit Dhruv,A.D. Joshi,R. K. Trivedi,P.S. Solanki,Nikesh A. Shah +14 more
TL;DR: In this article, structural and electrical properties of rare earth La 0.5Nd0.5MnO3 (LNMO) manganites have been studied under the effect of synthesis environments.
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The effect of oxygen content on the magnetic cluster in the paramagnetic region of La0.67Ca0.33MnOy
Yong-Qin Ma,W.H. Song,Jie Yang,B.C. Zhao,Ranran Zhang,Zhigao Sheng,W J Lu,Gan-Hong Zheng,Jianming Dai,J. J. Du,Yuping Sun,Yuping Sun +11 more
TL;DR: In this article, the temperature dependence of internal friction, Young's modulus, and resistivity ρ(T) in situ along with the measurements of magnetization on optimally doped manganites La0.67Ca0.33MnOy with different oxygen contents were measured.
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Temperature evolution of anisotropic stress induced highly ordered stripe magnetic domains in La0.7Sr0.3MnO3 thin film on (110) NdGaO3 substrate
TL;DR: In this article, high ordered ferromagnetic (FM) domain patterns with out-of-plane magnetization have been observed in La0.7Sr0.3MnO3 thin film on (110) NdGaO3 (NGO).
Journal ArticleDOI
Electronic structure of Pr1-xCaxMnO3 from photoemission and inverse photoemission spectroscopies
Manas Kumar Dalai,Prabir Pal,R. Kundu,B. R. Sekhar,S. Banik,A.K. Shukla,Sudipto Roy Barman,C. Martin +7 more
TL;DR: In this article, the occupied and unoccupied electron states of the Pr 1 - x Ca x MnO 3 (x = 0.2, 0.33 and 0.4) near the Fermi level across their ferromagnetic-antiferromagnetic phase boundary were studied using ultraviolet photoemission spectroscopy and inverse photometric analysis.