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Title: Resistivity, I–V characteristics and Hall effect in Dy{sub 0.5}(Sr{sub 1-x}Ca{sub x}){sub 0.5}MnO{sub 3} manganites

Abstract

Highlights: • The resistivity of Dy{sub 0.5}(Sr{sub 1-x}Ca{sub x}){sub 0.5}MnO{sub 3} (x = 0 and x = 0.3) systems showed that these samples exhibited an insulating behavior. • I–V characteristics of both samples deviate from the Ohmic behavior. • Magnetoresistance and electroresistance provided negative values. • Hall resistivity ρxy of the Dy{sub 0.5}Sr{sub 0.5}MnO{sub 3} sample presents electron-like type of the charge carriers. • The temperature coefficient of resistance (TCR) shows that both systems can be good candidates for bolometer applications. - Abstract: Dy{sub 0.5}(Sr{sub 1-x}Ca{sub x}){sub 0.5}MnO{sub 3} (x = 0 and x = 0.3) manganites were synthesized using sol-gel method. Both samples exhibited an insulating behavior in the whole temperature range. Even the application of 5 T magnetic fields does not change this state. Conduction mechanisms were also investigated. The I–V characteristics of both samples present Ohmic behavior at minor voltages. Magnetoresistance and electroresistance were also studied. The thermal variation of Hall resistivity of Dy{sub 0.5}Sr{sub 0.5}MnO{sub 3} was determined in cooling down and warming up processes revealing electron-like type of charge carriers. Temperature coefficient of resistance shows significant values for both systems making them good candidates for bolometer applications.

Authors:
 [1];  [1];  [1];  [2];  [1];  [3]
  1. Laboratoire de Physique Appliquée, Faculté des Sciences, Université de Sfax, B.P. 1171, Sfax 3000 (Tunisia)
  2. (FunMagMa), Immanuel Kant Baltic Federal University, 236041, Kaliningrad (Russian Federation)
  3. CMTR, ICMPE, UMR 7182 CNRS-UPEC, 2 rue Henri Dunant, F-94320 Thiais (France)
Publication Date:
OSTI Identifier:
22730477
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 95; Other Information: Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; BOLOMETERS; CHARGE CARRIERS; HALL EFFECT; HIGH ROOMS; MAGNETIC FIELDS; SOL-GEL PROCESS; TEMPERATURE COEFFICIENT; TEMPERATURE RANGE

Citation Formats

Hamdi, R., E-mail: rihab.hamdi.physique@gmail.com, Tozri, A., Smari, M., Center for Functionalized Magnetic Materials, Dhahri, E., and Bessais, L.. Resistivity, I–V characteristics and Hall effect in Dy{sub 0.5}(Sr{sub 1-x}Ca{sub x}){sub 0.5}MnO{sub 3} manganites. United States: N. p., 2017. Web. doi:10.1016/J.MATERRESBULL.2017.08.035.
Hamdi, R., E-mail: rihab.hamdi.physique@gmail.com, Tozri, A., Smari, M., Center for Functionalized Magnetic Materials, Dhahri, E., & Bessais, L.. Resistivity, I–V characteristics and Hall effect in Dy{sub 0.5}(Sr{sub 1-x}Ca{sub x}){sub 0.5}MnO{sub 3} manganites. United States. doi:10.1016/J.MATERRESBULL.2017.08.035.
Hamdi, R., E-mail: rihab.hamdi.physique@gmail.com, Tozri, A., Smari, M., Center for Functionalized Magnetic Materials, Dhahri, E., and Bessais, L.. Wed . "Resistivity, I–V characteristics and Hall effect in Dy{sub 0.5}(Sr{sub 1-x}Ca{sub x}){sub 0.5}MnO{sub 3} manganites". United States. doi:10.1016/J.MATERRESBULL.2017.08.035.
@article{osti_22730477,
title = {Resistivity, I–V characteristics and Hall effect in Dy{sub 0.5}(Sr{sub 1-x}Ca{sub x}){sub 0.5}MnO{sub 3} manganites},
author = {Hamdi, R., E-mail: rihab.hamdi.physique@gmail.com and Tozri, A. and Smari, M. and Center for Functionalized Magnetic Materials and Dhahri, E. and Bessais, L.},
abstractNote = {Highlights: • The resistivity of Dy{sub 0.5}(Sr{sub 1-x}Ca{sub x}){sub 0.5}MnO{sub 3} (x = 0 and x = 0.3) systems showed that these samples exhibited an insulating behavior. • I–V characteristics of both samples deviate from the Ohmic behavior. • Magnetoresistance and electroresistance provided negative values. • Hall resistivity ρxy of the Dy{sub 0.5}Sr{sub 0.5}MnO{sub 3} sample presents electron-like type of the charge carriers. • The temperature coefficient of resistance (TCR) shows that both systems can be good candidates for bolometer applications. - Abstract: Dy{sub 0.5}(Sr{sub 1-x}Ca{sub x}){sub 0.5}MnO{sub 3} (x = 0 and x = 0.3) manganites were synthesized using sol-gel method. Both samples exhibited an insulating behavior in the whole temperature range. Even the application of 5 T magnetic fields does not change this state. Conduction mechanisms were also investigated. The I–V characteristics of both samples present Ohmic behavior at minor voltages. Magnetoresistance and electroresistance were also studied. The thermal variation of Hall resistivity of Dy{sub 0.5}Sr{sub 0.5}MnO{sub 3} was determined in cooling down and warming up processes revealing electron-like type of charge carriers. Temperature coefficient of resistance shows significant values for both systems making them good candidates for bolometer applications.},
doi = {10.1016/J.MATERRESBULL.2017.08.035},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = ,
volume = 95,
place = {United States},
year = {2017},
month = {11}
}