The Effect of Sr-substitution on the Electrical and Structural Properties in Colossal Magnetoresistive La1-xSrxMnO3 with x = 0.05, 0.12, 0.18, 0.30 and 0.40

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Abstract

The effect of Sr-substitution at the La-site in colossal magnetoresistive La1-xSrxMnO3 (x = 0.05, 0.12, 0.18, 0.30 and 0.40) on the electrical transport and structural property has been studied. Investigations were conducted through X-ray diffraction (XRD) analysis, temperature-dependent electrical resistance measurements and scanning electron microscope (SEM). Between x = 0.05 to 0.30, XRD analysis showed that at room temperature, the composition has orthorhombic structure. At x = 0.40 composition, the structure is rhombohedral. Electrical resistance measurements (30-290 K) showed that the material was insulating between x = 0.05 to 0.12, whereas increased substitution from x = 0.18 to 0.40 transformed the electrical property from insulating to metallic. The transformation in the transport property along with the conspicuous change in structure with increase Sr-substitution x provide a strong indication of a large electron-lattice coupling in this material.

Original languageEnglish
Article number012029
JournalJournal of Physics: Conference Series
Volume1083
Issue number1
DOIs
Publication statusPublished - 10 Sep 2018
Event6th International Conference of Solid State Science and Technology and Workshop on Advanced Materials Technology: Growth and Characterization, ICSSST AMTGC 2017 - Penang, Malaysia
Duration: 13 Nov 201716 Nov 2017

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electrical properties
substitutes
electrical resistance
transport properties
diffraction
insulation
indication
x rays
electron microscopes
scanning
room temperature
electrons
temperature

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

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title = "The Effect of Sr-substitution on the Electrical and Structural Properties in Colossal Magnetoresistive La1-xSrxMnO3 with x = 0.05, 0.12, 0.18, 0.30 and 0.40",
abstract = "The effect of Sr-substitution at the La-site in colossal magnetoresistive La1-xSrxMnO3 (x = 0.05, 0.12, 0.18, 0.30 and 0.40) on the electrical transport and structural property has been studied. Investigations were conducted through X-ray diffraction (XRD) analysis, temperature-dependent electrical resistance measurements and scanning electron microscope (SEM). Between x = 0.05 to 0.30, XRD analysis showed that at room temperature, the composition has orthorhombic structure. At x = 0.40 composition, the structure is rhombohedral. Electrical resistance measurements (30-290 K) showed that the material was insulating between x = 0.05 to 0.12, whereas increased substitution from x = 0.18 to 0.40 transformed the electrical property from insulating to metallic. The transformation in the transport property along with the conspicuous change in structure with increase Sr-substitution x provide a strong indication of a large electron-lattice coupling in this material.",
author = "{Nor Azah}, {Nik Jaafar} and {Abd. Shukor}, Roslan",
year = "2018",
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language = "English",
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journal = "Journal of Physics: Conference Series",
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TY - JOUR

T1 - The Effect of Sr-substitution on the Electrical and Structural Properties in Colossal Magnetoresistive La1-xSrxMnO3 with x = 0.05, 0.12, 0.18, 0.30 and 0.40

AU - Nor Azah, Nik Jaafar

AU - Abd. Shukor, Roslan

PY - 2018/9/10

Y1 - 2018/9/10

N2 - The effect of Sr-substitution at the La-site in colossal magnetoresistive La1-xSrxMnO3 (x = 0.05, 0.12, 0.18, 0.30 and 0.40) on the electrical transport and structural property has been studied. Investigations were conducted through X-ray diffraction (XRD) analysis, temperature-dependent electrical resistance measurements and scanning electron microscope (SEM). Between x = 0.05 to 0.30, XRD analysis showed that at room temperature, the composition has orthorhombic structure. At x = 0.40 composition, the structure is rhombohedral. Electrical resistance measurements (30-290 K) showed that the material was insulating between x = 0.05 to 0.12, whereas increased substitution from x = 0.18 to 0.40 transformed the electrical property from insulating to metallic. The transformation in the transport property along with the conspicuous change in structure with increase Sr-substitution x provide a strong indication of a large electron-lattice coupling in this material.

AB - The effect of Sr-substitution at the La-site in colossal magnetoresistive La1-xSrxMnO3 (x = 0.05, 0.12, 0.18, 0.30 and 0.40) on the electrical transport and structural property has been studied. Investigations were conducted through X-ray diffraction (XRD) analysis, temperature-dependent electrical resistance measurements and scanning electron microscope (SEM). Between x = 0.05 to 0.30, XRD analysis showed that at room temperature, the composition has orthorhombic structure. At x = 0.40 composition, the structure is rhombohedral. Electrical resistance measurements (30-290 K) showed that the material was insulating between x = 0.05 to 0.12, whereas increased substitution from x = 0.18 to 0.40 transformed the electrical property from insulating to metallic. The transformation in the transport property along with the conspicuous change in structure with increase Sr-substitution x provide a strong indication of a large electron-lattice coupling in this material.

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