3 papers
cond-mat.mtrl-sci2026
Dependence of the Mn sticking coefficient on Ga-rich, N-rich, and Ga/N-flux-free conditions in GaN grown by plasma-assisted molecular beam epitaxy
YongJin Cho, Changkai Yu, Huili Grace Xing +1
This brief report examines the influence of Ga/N flux conditions on Mn incorporation in GaN. Mn-doped GaN layers were grown at 680C by molecular beam epitaxy on a Ga-pola…
cond-mat.mtrl-sci2025
Low Resistance Non-Alloyed Ohmic Contacts to High Al Composition n-type AlGaN
Joseph E. Dill, Xianzhi Wei, Changkai Yu +6
Ohmic contacts to high (>70\%) Al content n-type AlGaN ultra-wide bandgap semiconductor layers in nitride electronic and photonic devices are typically fabricated by a…
cond-mat.supr-con2025
Field-resilient superconducting coplanar waveguide resonators made of Nb, NbTi, and NbTiN
Bongkeon Kim, Chang Geun Yu, Priyanath Mal +1
Superconducting coplanar waveguide (SCPW) resonators with high internal quality factors (\Q_i) are essential for quantum information applications, but suffer severe Qi degradation…