Study on magnetic properties in perovskite Nd1-xSrxMnO3 system

Authors

  • Van Khai Vu**
  • Nhan Ba Dam, Van Tuan Chu
  • Huy Sinh Nguyen

Keywords:

Block’s law, Double-Exchange interaction (DE), ferromagnetic-paramagnetic phase transition, ratio of Mn3 /Mn4 , single phase, spin-glass

Abstract

The magnetic properties of Nd1-xSrxMnO3 system (with x = 1/3, 0.4, and 0.5) have been investigated with magnetization curves in zero field cooling (ZFC) and field cooling (FC) measurements in the temperature range of 77-350K. It is indicated that the temperature dependence of magnetization has fitted in the Block’s law in the region of T < TC at all samples. The magnetoresistance of Nd1-xSrxMnO3 system has been determined with low magnetic fields of 0.0-0.4T in low temperatures. It is found that the obtained magnetoresistance ratio (CMR) has decreased by increasing Sr concentrations. The maximum values of CMR (%) have obtained at around the region of metal-insulator transition temperature (TP). The dependence of maximum CMR (%) on the Sr concentrations has been in accordance with the hyperbola function in this system. 

 

Classification number

2.5

Author Biographies

Van Khai Vu*

Construction Mechanical Faculty, University of Civil Engineering

Nhan Ba Dam, Van Tuan Chu

Department of Basic Sciences, Hung Yen University of Technology and Education

Huy Sinh Nguyen

Department of Basic Sciences, Hung Yen University of Technology and Education

Faculty of Physics, VNU University of Science

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Published

2017-05-25

Received: 16 January 2017; accepted: 27 February 2017

How to Cite

Vu Van Khai*, Dam Nhan Ba, Chu Van Tuan, & Nguyen Huy Sinh. (2017). Study on magnetic properties in perovskite Nd1-xSrxMnO3 system. Version B of Vietnam Journal of Science and Technology, 59(5). Retrieved from https://b.vjst.vn/index.php/ban_b/article/view/503

Issue

Vol. 59 No. 5 (2017): Volume 59 - Number 5 - May 2017

Section

Engineering and Technology