TY - JOUR
T1 - Effect of Silver Substitution on Electrical Transport and Magnetoresistance of La0.8Ca0.2MnO3
AU - Munazat, Dicky Rezky
AU - Kurniawan, Budhy
AU - Imaddudin, Agung
AU - Kamila, Rina
AU - Razaq, Dhawud Sabilur
PY - 2019/7/1
Y1 - 2019/7/1
N2 - In this work, we have investigated the effect of silver substitution on electrical transport behavior and magnetoresistance of La0.8- xAgxCa0.2MnO3 (x = 0 and 0.05). Preparation and study of structural and microstructure of both samples have been reported on previous work. Temperature-dependent resistivity has been measured at temperature range of 15-285 K with zero field cooling. Magnetoresistance effect has been measured at 15, 100, and 285 K with magnetic field up to 1 T. The electrical transport behavior of both samples are quite well described by a theory based on the Percolation model. The electrical conduction mechanism at low temperature can be explained by a theory based on Kondo-like spin-dependent scattering, electron-electron, electron-magnon, and electron-phonon scattering. It was found that silver substitution increases the metal-insulator transition temperature (TM-I) from 197.55 to 277.56 K, and Curie temperature (Tc Mod) from 217.25 to 278.65 K. Moreover, the maximum magnetoresistance value of both samples was obtained at 15 K.
AB - In this work, we have investigated the effect of silver substitution on electrical transport behavior and magnetoresistance of La0.8- xAgxCa0.2MnO3 (x = 0 and 0.05). Preparation and study of structural and microstructure of both samples have been reported on previous work. Temperature-dependent resistivity has been measured at temperature range of 15-285 K with zero field cooling. Magnetoresistance effect has been measured at 15, 100, and 285 K with magnetic field up to 1 T. The electrical transport behavior of both samples are quite well described by a theory based on the Percolation model. The electrical conduction mechanism at low temperature can be explained by a theory based on Kondo-like spin-dependent scattering, electron-electron, electron-magnon, and electron-phonon scattering. It was found that silver substitution increases the metal-insulator transition temperature (TM-I) from 197.55 to 277.56 K, and Curie temperature (Tc Mod) from 217.25 to 278.65 K. Moreover, the maximum magnetoresistance value of both samples was obtained at 15 K.
UR - http://www.scopus.com/inward/record.url?scp=85069210895&partnerID=8YFLogxK
U2 - 10.1088/1757-899X/546/4/042025
DO - 10.1088/1757-899X/546/4/042025
M3 - Conference article
AN - SCOPUS:85069210895
VL - 546
JO - IOP Conference Series: Materials Science and Engineering
JF - IOP Conference Series: Materials Science and Engineering
SN - 1757-8981
IS - 4
M1 - 042025
T2 - 9th Annual Basic Science International Conference 2019, BaSIC 2019
Y2 - 20 March 2019 through 21 March 2019
ER -