Electronic and structural transition in $La_{0.2} Sr_{0.8} Mn O_3$

R. Bindu; Kalobaran Maiti; R. Rawat; S. Khalid

doi:10.1063/1.2898885

paper

Electronic and structural transition in $L a_{0.2} S r_{0.8} M n O_{3}$

arXiv:0712.2746 · doi:10.1063/1.2898885

Abstract

We investigate the interplay of the electronic and structural transition in La $_{0.2}$ Sr $_{0.8}$ MnO $_{3}$ . The transport and specific heat measurements exhibit unusual evolutions and signature of a first order phase transition around 265 K. Mn K-edge extended $x$ -ray absorption fine structure results reveal distortion in the MnO $_{6}$ octahedra even in the cubic phase and a remarkable evolution of the distortion across the phase transition. These results manifest the importance of fluctuations in Mn 3 $d$ orbital occupancy and disorder in their electronic properties, which may help in understanding the orbital and spin ordering proposed in these systems.

3 pages, 3 figures

References in corpus (1)

Geometrically frustrated magnetic behavior of Sr3NiRhO6 and Sr3NiPtO6

Electronic and structural transition in La0.2​Sr0.8​MnO3​

Abstract

References in corpus (1)

Electronic and structural transition in $L a_{0.2} S r_{0.8} M n O_{3}$