A5022905350- Magnetic and transport properties of perovskites and related materials
- Advanced Condensed Matter Physics
- Rare-earth and actinide compounds
- Multiferroics and related materials
- Magnetic Properties of Alloys
- Advanced Thermoelectric Materials and Devices
- Thermal Expansion and Ionic Conductivity
- Electronic and Structural Properties of Oxides
- Physics of Superconductivity and Magnetism
- Shape Memory Alloy Transformations
- Metallurgical and Alloy Processes
- Advancements in Solid Oxide Fuel Cells
- Advanced Thermodynamics and Statistical Mechanics
- Thermal properties of materials
- Copper-based nanomaterials and applications
- Heusler alloys: electronic and magnetic properties
- Nanoporous metals and alloys
- Topological Materials and Phenomena
- Electrodeposition and Electroless Coatings
- Mesoporous Materials and Catalysis
- Ferroelectric and Piezoelectric Materials
- Magnetic Properties and Applications
University of Indonesia
2018-2024
Riau University
2023
Syarif Hidayatullah State Islamic University Jakarta
2019-2020
Sebelas Maret University
2020
Chungbuk National University
2019
Korea Institute of Materials Science
2019
This review article provides a very general extensive of magnetoresistance (MR), including AMR, CMR, TMR, GMR, and compares the latest findings developments in this field.
This study investigates the effect of A-site disorder, characterized by average ionic radius (〈
The effect of synthesis methods on the structural, magnetic, electrical transport, and magnetoresistance (MR) properties K-deficient La
La0.7Sr0.2Ba0.1Mn1-xNixO3 (x=0 and x=0.1) material has been successfully synthesized using sol-gel method. The XRD pattern shows the sample a single phase without impurities. result of refinement showed that both samples formed rhombohedral structure with R-3c (167) space group. addition nickel ions concentration 10% does not change crystal structure, but causes decrease in lattice parameters, unit cell volume, Mn-O-Mn Bond angle, increase Mn-O length. volume La0.7Sr0.2Ba0.1MnO3...
The magnetic and magnetocaloric effects of potassium-substituted La0.8−xKxBa0.05Sr0.15MnO3 (0 ≤ x 0.20) manganite were explored. samples in polycrystalline form synthesized by the sol–gel method, with a final sintering temperature 1100 °C. Powder X-ray diffraction (XRD) patterns refined Rietveld refinement show that all crystallized rhombohedral structure R-3c space group. unit cell volume decreases increasing potassium concentration. In addition, small changes average bond length angle are...
Nickel (Ni)-rich single-phase nickel-copper (Ni-Cu) alloy coatings were produced on aluminum (Al) substrates by electrodeposition in stabilized citrate baths. Electrodeposition experiments performed at four different current densities. Increasing the density resulted metal deposition rate increasing faster than hydrogen evolution rate; thus, cathodic efficiency increased. The crystal systems of Ni-Cu alloys face center cubic (fcc), with (111) plane as preferred plane. Scanning electron...
In this work, the magnetic and magnetocaloric properties of La0.7Ba0.25Nd0.05Mn1-xCuxO3 samples (x = 0 - 0.07) synthesized by sol-gel method are presented. The compounds exhibited a second-order phase transition (SOPT) ferromagnetic-paramagnetic (FM-PM) following Banerjee’s criterion. Curie temperature TC decreased with increasing doping concentration. critical behavior analysis using modified Arrott plots (MAP) showed short-range FM ordering. Significant entropy change was observed near TC,...
Abstract Conducting optimization calculations for thermoelectric performance can be beneficial in guiding the direction of further experimental work. In our study, we utilize a combination first principle, Boltzmann transport and restructured single parabolic band model to investigate half-doped semiconductors based on manganite. Ca 0.5 La 0.5− x Bi MnO 3 ( = 0, 0.25) as samples shows power factor (PF) optimum value 30% 69% 0 0.25, respectively at temperature 800 K. addition, both show two...
Abstract Magnetoresistance in perovskite materials has been extensively studied due to their great potential spintronics technology. Perovskite samples composite with metal oxides can modify electrical properties, which subsequently improve LFMR under low magnetic fields. In this study, we investigate changes properties at different temperatures of polycrystalline (1-x)La0.7Sr0.2Ca0.1MnO3/xCuO (LC) composites, where x = 0, 0.05, 0.10, 0.15, and 0.20. Polycrystalline La0.7Sr0.2Ca0.1MnO3...
Nanoparticles of La 2 CuO 4 (LCO) with different particles and crystallite size have been synthesized by the sol-gel method. The samples sintered at 600, 650, 700°C. sintering process performed in atmospheric pressure vacuum pressure. structural morphological properties investigated X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM), Transmission (TEM). XRD patterns shown that all crystallize orthorhombic structure Bmab space group. Additionally, Rietveld refinement higher...
In this work, we report structure, morphology, and chemical composition of La1.84Sr0.16CuO4 which have been synthesized using the sol-gel method. X-ray diffraction (XRD) analysis shows that sample stabilized in tetragonal structure with I4/mmm space group. Morphological Scanning Electron Microscope (SEM) average grain size is 155.13 nm. Furthermore, Dispersive Spectroscopy (EDS) result confirmed composed appropriate elements, even though different compared to calculated value stoichiometric...
Abstract A systematic investigation of electrical transport and magnetoresistance properties polycrystalline La 0.8 Ca 0.2-x Ag x MnO 3 (x = 0 0.05) is reported in this work. According to the resistivity data measured from 40 250 K, transition metallic insulator behavior upon heating were observed both samples. Additionally, 5% silver substitution shifts metal-semiconductor into a higher temperature. Furthermore, also decreases overall temperature compared original compound. In work, result...
Nanocrystalline La0.7Sr0.2Ba0.1MnO3 (LSBMO) has been synthesized using two difference method, sol-gel and wet-mixing methods. Both samples were sintered at the same temperature of 900°C for 12 hours. Structural investigation X-Ray Diffraction (XRD) shows that both crystallise in rhombohedral structure with R3c (167) space group. A slight on lattice parameters, unit cell volume Mn–O bond length was observed. The crystallinity from method better than method. average crystallite size calculated...
The effect of nickel substitution on the electrical transport properties La 0.7 Sr 0.2 Ba 0.1 Mn 1- x Ni O 3 ( = 0 and 0.1) manganite have been studied. temperature dependence resistivity samples shows that increases overall resistivity. Exchange probability calculation ferromagnetic (FM) coupling inside sample decreases upon substitution, which induces antiferromagnetic (AFM) sample. These results are suitable with reduction in electronic bandwidth value. Comparison experimental data...
A set of nanoparticles NdSrMnO 3 has been prepared base on sol-gel method. On site, the were modified by substitution among Nd and Sr. The effect site sample to structural morphological entirely examined mean X-Ray Diffractometer (XRD) Scanning Electron Microscopy (SEM). From XRD result, it is found that all under investigated show orthorhombic structure indicating does not modify structure. other hand, some behavior proposed as substituted. shape size are significantly different, resulting...