2 papers
cond-mat.mes-hall2020
Frequency-induced Negative Magnetic Susceptibility in Epoxy/Magnetite Nanocomposites
Che-Hao Chang, Shih-Chieh Su, Tsun-Hsu Chang +1
The epoxy/magnetite nanocomposites express superparamagnetism under a static or low-frequency electromagnetic field. At the microwave frequency, said the X-band, the nanocomposites…
physics.plasm-ph2019
Non-Adiabatic Effects on Electron Beam Quality for Frequency-Tunable Gyrotrons
Cheng-Hung Tsai, Tsun-Hsu Chang, Toshitaka Idehara +1
We propose an unconventional electron gun structure in which the emitter is located on a concave cathode surface with a non-uniform electric field. Such a design violates the intui…