Electrical Transport and magnetoresistance properties of La0.8Ca0.2-xAgxMnO3 (x = 0 and 0.05)

Dhawud Sabilur Razaq, Budhy Kurniawan, Agung Imaddudin, Nabila Aisyah Sahara, Dicky Rezky Munazat

Research output: Contribution to journalConference articlepeer-review


A systematic investigation of electrical transport and magnetoresistance properties of polycrystalline La0.8Ca0.2-xAgxMnO3 (x = 0 and 0.05) is reported in this work. According to the resistivity data measured from 40 to 250 K, transition from metallic to insulator behavior upon heating were observed in both samples. Additionally, 5% silver substitution shifts the metal-semiconductor transition into a higher temperature. Furthermore, silver substitution also decreases the overall temperature compared to the original compound. In this work, this result can be well described using electron-electron, electron-phonon, and the interaction between electron, phonon, and magnon. Resistivity measurements under magnetic field influence shows that silver substitution improves the magnetoresistance properties compared to the original compound. The maximum ratio of magnetoresistance at 285 K was found to be 3.3% and 4.7% for x = 0 and 0.05, respectively.

Original languageEnglish
Article number042037
JournalIOP Conference Series: Materials Science and Engineering
Issue number4
Publication statusPublished - 1 Jul 2019
Event9th Annual Basic Science International Conference 2019, BaSIC 2019 - Malang, Indonesia
Duration: 20 Mar 201921 Mar 2019


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