- Magnetic and transport properties of perovskites and related materials
- Advanced Condensed Matter Physics
- Shape Memory Alloy Transformations
- Magnetic Properties of Alloys
- Magnetic Properties and Synthesis of Ferrites
- Metallic Glasses and Amorphous Alloys
- Advanced Thermodynamics and Statistical Mechanics
- Magnetic Properties and Applications
- Rare-earth and actinide compounds
Hanoi University of Science and Technology
2015
Chungbuk National University
2007
Chungnam National University
2007
The critical behavior of Pr1−xCaxMnO3 samples with x = 0.25, 0.27, and 0.29 has been investigated. Detailed analyses magnetic-field dependences magnetization at temperatures around the paramagnetic-ferromagnetic transition, M(H, T), reveal that undergo a second-order magnetic phase transition. Arrott plot method predicts values parameters to be TC ≈ 118 K, β 0.351 ± 0.003, γ 1.372 0.002, δ 4.90 0.02 for 0.25; 116 0.362 1.132 0.004, 4.09 0.03 0.27; 110 0.521 0.912 0.005, 2.71 0.29. (for 0.25)...
Abstract We present here, the results of a thorough study longitudinal permeability ratio (LPR) and transverse (TPR) in sputtered Co 19.35 Fe 53.28 Hf 7.92 O films with varying thicknesses ( t = 1, 1.5, 1.8 2.4 µm) frequency range 100 ‐ 1000 MHz. It is found that for all samples investigated, LPR/TPR first increases increasing frequency, reaches maximum at 710 MHz, then decreases higher frequencies. This related to ferromagnetic resonance. The LPR TPR profiles measured along easy axis film...