Electrical Properties of La0.67Sr0.33Mn0.8Ni0.2O3Synthesized by Sol Gel Method

Kurniawan, Budhy; Widyaiswari, Utami; Fauziyah, I.; Imaduddin, Agung

doi:10.1088/1757-899x/196/1/012010

Cited by 1 publication

(4 citation statements)

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“…The crystalline structure of samples was characterized by using XRD and have been reported in the previous publication. The result showed that the samples have single phase without any impurity peak [3,5]. Based on the Rietveld refinement analysis method, the samples are identified as a rhombohedral with R-3c space group.…”

Section: Resultsmentioning

confidence: 98%

“…Afterward, the nitrate solutions of these precursors were mixed and stirred on the hotplate with temperature 80-90°C. The next step is to adjust the pH of this mixed solution until 5.6 by added ammonia solution to the mixed solution [3]. Then, the solution was mixed and stirred until the water evaporated and it formed a sol gel.…”

Section: Methodsmentioning

confidence: 99%

“…The resistivity of the samples was measured by using cryogenic magnetometer. Temperature dependence of resistivity, ρ(T), curve of both samples has been published and showed that the resistivity of the samples increased with the Ni doping, and Ni-doped LSMO has an insulator behavior and showed no metal-insulator transition [3]. The resistivity of the samples then measured with the variation of applied magnetic fields.…”

Section: Fmmentioning

confidence: 99%

“…The other studies [3,4] showed that Ni-doped in LSMO changed the electrical properties of the LSMO material. They showed that un-doped LSMO has metallic behavior in the temperature range 50 -250 K, while the La0.67Sr0.33Mn0.80Ni0.20O3 sample has insulator behavior in the temperature range 100 -300 K. Those samples showed different behavior due to the decrease of the Mn 3+ /Mn 4+ ratio in the doped LSMO that suppressed the double exchange (DE) interaction [3]. The change of electrical properties will be accompanied by the change of magnetic properties.…”

Section: Introductionmentioning

confidence: 96%

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Study of Magnetoresistance Effect and Magnetic Properties of La0.67Sr0.33Mn1-xNixO3 (x = 0 and 0.2) Material Prepared by Sol-Gel Method

Widyaiswari

Kurniawan

Imaduddin

et al. 2019

MSF

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Mixed valence manganite materials have been studied due to their interesting physical properties such as their magnetoresistance (MR) effect. The change of Mn3+/Mn4+ ratio affects the possible bonds between anion and cation and their spin structure that may occur in the samples. The aim of this research is to study the change of magnetoresistance effect and magnetic properties of La0.67Sr0.33MnO3 (LSMO) by doping the Mn site with Ni ion. La0.67Sr0.33Mn1-xNixO3 samples were synthesized by using sol-gel method and characterized by using X-ray diffractometer (XRD) and Energy Dispersive X-ray spectroscopy (EDX) to confirm whether Ni has been doped successfully to the parental compound or not. XRD results showed that the samples have a single phase and Ni peak has been detected in the EDX result of Ni-doped LSMO. Resistivity and magnetic measurement showed that LSMO material has ferromagnetic metallic behavior, while x = 0.20 Ni-doped LSMO sample showed paramagnetic insulator behavior. The absolute value of the MR for un-doped sample is higher than the doped sample when the low field is applied, while under the influence of the high magnetic field, it become smaller than the doped sample.

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Section: Resultsmentioning

confidence: 98%

Section: Methodsmentioning

confidence: 99%

Section: Fmmentioning

confidence: 99%