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Jonathan Alvarado
Texas State University at San Marcos, Department of Physics, RFM 3228, 601 University Drive, San Marcos, TX78666.
Jonathan Alvarado
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I worked on three different projects for my REU:
[a] Realization of a z-coil-set for a triaxial Vibrating Sample Magnetometer. A coil-winder was modified, spools were designed and 3D printed, coils were wound on the realized spools, the realized coil set was characterized and tested. this work was done under supervsion of Leo Rodriguez and Arjun Sapkota.
[b] Magnetic characterization of different samples taken from a hard magnetic 3D printer filament. Measurements were made on a sample taken from the center of the filament and a sample taken from the cylindrical surface area of the filament. The anisotropy of the different samples was determined by measuring the magnetic hysteresis curves in different direction. This work was done in collaboration with Gabriela Espinoza.
[c] Realization of a cooling stage for a Raman spectrometer using of-the-shelf PC water cooling components and a 3D printer. A low budget stage that is able to cool the thin films below freezing was realized for $80.00. When testing the stage on perovskite thin film samples a real time phase transformation was observed through the optical microscope of the Raman setup. This project was supervised by Ripon Mahamudujjaman.
Publications:
[1] Leo Rodriguez, Arjun Sapkota, Jonathan Alvarado, Jitendra Tate, Wilhelmus Geerts, “Computational Modelling of a Triaxial Vibrational Sample Magnetometer”, AIP Advances 14, 2, 025306, 2024, Computational modelling of a triaxial vibrating sample magnetometer | AIP Advances | AIP Publishing (impact factor 1.697).
[2] Gabriela Espinosa Rodriguez, Oluwasola Arigbabowo, Jonathan Alvarado, Jitendra Tate, Wilhelmus J. Geerts, "Crystal Anisotropy of Strontium Ferrite and PA-12 Fused Filament Fabrication (FFF)", submitted to AIP Advances, September 31, 2023.
Presentations:
[1] Jonathan Alvarado, Leo Rodriguez, Arjun Sapkota, Oluwasola Arigbabowo, Gabriela Espinoza, Jitendra Tate, Wilhelmus Geerts, "Development of Triaxial Vibrating Sample Magetometer", Research, Inquiry, and Creative Expression Poster showcase 2023, August 2, 2023, TxState University, San Marcos.
[2] Gabriela Espinosa Rodriguez, Oluwasola Arigbabowo, Jonathan Alvarado, Jitendra Tate, Wilhelmus J. Geerts, "Crystal Anisotropy of Strontium Ferrite and PA-12 Fused Filament Fabrication (FFF)", oral presentation MMM-2023 conference, 10/30/2023-11/3/2023, Dallas.
Jonathan is a Mechanical Engineering student at UT Rio Grande Valley. He did an REU at Texas State in the summer of 2023 ( NSF REU grant 2051066).
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