CARRIER–LATTICE RELAXATION FOR BROADENING EPR LINEWIDTH IN Nd0.55Sr0.45MnO3-Reference-Cited by-同舟云学术

CARRIER–LATTICE RELAXATION FOR BROADENING EPR LINEWIDTH IN Nd0.55Sr0.45MnO3

Published:2013-12-03 Issue:31 Volume:27 Page:1350232
ISSN:0217-9849
Container-title:Modern Physics Letters B
language:en
Short-container-title:Mod. Phys. Lett. B

Author:

FAN JIYU¹,ZHANG XIYUAN¹,TONG WEI²,ZHANG LEI²,ZHANG WEICHUN¹,ZHU YAN¹,SHI YANGGUANG¹,HU DAZHI¹,HONG BO³,YING YAO⁴,LING LANGSHENG²,PI LI²⁵,ZHANG YUHENG²⁵

Affiliation:

1. Department of Applied Physics, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

2. High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, China

3. Department of Material Engineering, China Jiliang University, Hangzhou 310018, China

4. Institute of Magnetic and Electronic Materials, College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310023, China

5. Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China

Abstract

In this paper, we report the electron paramagnetic resonance (EPR) study of perovskite manganite Nd 0.55 Sr 0.45 MnO 3. Experimental data reveal that the EPR linewidth broadens with a quasilinear manner up to 480 K. The broadening of the EPR linewidth can be understood in terms of the shortening of carrier–lattice relaxation time due to the occurrence of strong carrier–phonon interactions. Two same activation energies obtained respectively from the temperature dependence of EPR intensity and resistivity indicate that the linewidth variation is correlated to the small polaron hopping. Therefore, the carrier–lattice coupling play a major role for deciding its magnetism in the present system.

Publisher

World Scientific Pub Co Pte Lt

Subject

Condensed Matter Physics,Statistical and Nonlinear Physics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0217984913502321

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