A5007666002- Magnetic properties of thin films
- Quantum and electron transport phenomena
- Advanced Thermoelectric Materials and Devices
- Heusler alloys: electronic and magnetic properties
- Physics of Superconductivity and Magnetism
- Magneto-Optical Properties and Applications
- Surface and Thin Film Phenomena
- Perfectionism, Procrastination, Anxiety Studies
- Chalcogenide Semiconductor Thin Films
- 2D Materials and Applications
- Magnetic Properties of Alloys
- Silk-based biomaterials and applications
- Thermal properties of materials
- Quantum Dots Synthesis And Properties
- Electrospun Nanofibers in Biomedical Applications
- Magnetic and transport properties of perovskites and related materials
- Superconducting Materials and Applications
- Advanced Sensor and Energy Harvesting Materials
Khon Kaen University
2019-2024
National Institute of Advanced Industrial Science and Technology
2024
Ramkhamhaeng University
2022
Thammasat University
2022
Synchrotron Light Research Institute
2022
Melt-electrospun polycaprolactone (PCL) fibers were fabricated by using NaCl as an additive. The size and morphology of the PCL could be controlled varying concentration smallest (2.67 ± 0.57) µm was found in sample with 8 wt% NaCl, which order magnitude smaller than without melt-electrospun characterized differential scanning calorimeter (DSC), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) techniques. Interestingly, a trace not any fiber. remaining after...
In this article, we report on a low-cost instrument for the versatile measurement of spin Caloritronics phenomena such as Seebeck effect (SSE), anomalous Nernst (ANE) anisotropic magnetoresistance (AMR) and Hall (AHE). Solenoid coils provide uniform variable magnetic field while sample was sandwiched between thermal baths measured in vacuum chamber. Our results show excellent uniformity (± 0.37 mT) within magnet gap high stability generated temperature difference 0.07 K). For verifying...
The generation of spin voltage by heat, known as the Seebeck effect (SSE), involves injection current from a ferromagnetic to normal metal. In this study, shunting in SSE is investigated within hybrid structure consisting iron (Fe) and cobalt (Co) films deposited on Si-wafer substrate using thermal evaporation [Si/Fe(500 nm)/Co(10 nm)]. Spin measurements performed in-plane configuration revealed reversal Co film Fe film. However, (Si/Fe/Co), signal exhibited consistent directionality. This...
In this study, we report on the observation of spin current in opposite Hall angle materials polycrystalline bulk-Fe3O4/Co and bulk-Fe3O4/Fe Seebeck effect (SSE) devices. contrast to prior works, a facile low-cost hot-pressing powder metallurgy process was employed manufacture bulk-Fe3O4 samples. The crystal structure, magnetization properties, electrical resistivity characterizations fabricated bulk-Fe3O4, which were performed using x-ray diffraction, vibration sample microscope, four-point...
The thermoelectric figure of merit zT in n-type Ni-doped NbCoSn and p-type Mn-doped NbFeSb half-Heusler (HH) compounds was successfully improved using the 18 valence electron count concept, demonstrating reliable power generation HH-based modules.
Spin‐Hall thermopiles have been previously proposed as a means to enhance the spin Seebeck effect (SSE). However, use of platinum (Pt) for detection drives costs high and proves an impediment scalability. In this work, cost‐effective spin‐Hall thermopile constructed from opposite angle ferromagnets, cobalt (Co) iron (Fe), is reported. The devices are fabricated using standard sputter‐coated yttrium garnet (YIG) substrate that serves injector, thermally evaporated Co Fe strips enable...
The concept of a ‘phonon-liquid electron-crystal’ has received significant interest in recent years, with copper selenide (Cu2Se) emerging as one the high-performance thermoelectric materials within this framework. This study focuses on fabrication Cu2Se bulk pellets through low-temperature sintering method known cold process (CSP). introduction liquid phase (thiol-amine solution) facilitates dissolution and precipitation ion/atom clusters, resulting sample densification. Remarkably, density...
The transverse thermoelectric voltage in the Au/Ni foil bilayer system has been investigated due to combination of spin Seebeck effect (SSE) and anomalous Nernst (ANE) at room temperature. It is found that proportionally increases with increasing applied temperature difference approaches a constant value when magnetization Ni reaches saturation state. measured signal, about 0.424 ± 0.005 μV 5 K difference, ANE signal from SSE system. coefficients are determined observed voltages, dimension...