activity
20152024
most citedGate-recessed E-mode p-channel HFET with high on-current based on GaN/AlN 2D hole gas

115 citations · 445 across the 14 of their papers we have counts for

collaborators

14 papers

cond-mat.mtrl-sci2024★ 17 cited

Ferroelectric AlBN Films by Molecular Beam Epitaxy

Chandrashekhar Savant, Ved Gund, Kazuki Nomoto +13

We report the properties of molecular beam epitaxy deposited AlBN thin films on a recently developed epitaxial nitride metal electrode Nb2N. While a control AlN thin film exhibits…

physics.app-ph2023★ 44 cited

FerroHEMTs: High-Current and High-Speed All-Epitaxial AlScN/GaN Ferroelectric Transistors

J. Casamento, K. Nomoto, T. S. Nguyen +11

We report the first observation of ferroelectric gating in AlScN barrier wide-bandgap nitride transistors. These FerroHEMT devices realized by direct epitaxial growth represent a n…

cond-mat.mtrl-sci2022★ 22 cited

Molecular Beam Homoepitaxy of N-polar AlN on bulk AlN substrates

Jashan Singhal, Jimy Encomendero, Yongjin Cho +6

N-polar AlN epilayers were grown on the N-face of single crystal bulk AlN substrates by plasma assisted molecular beam epitaxy (PA-MBE). A combination of in situ thermal deoxidatio…

cond-mat.mtrl-sci2022★ 11 cited

N-polar GaN p-n junction diodes with low ideality factors

Kazuki Nomoto, Huili Grace Xing, Debdeep Jena +1

High-quality N-polar GaN p-n diodes are realized on single-crystal N-polar GaN bulk substrate by plasma-assisted molecular beam epitaxy. The room-temperature current-voltage charac…

physics.app-ph2021★ 70 cited

Epitaxial ScAlN on GaN is a High K Dielectric

Joseph Casamento, Hyunjea Lee, Takuya Maeda +7

Epitaxial ScAlN thin films of ~100 nm thickness grown on metal polar GaN exhibit significantly enhanced relative dielectric permittivity () values relative to AlN.…

cond-mat.mtrl-sci2021★ 4 cited

Ferroelectricity in Polar ScAlN/GaN Epitaxial Semiconductor Heterostructures

Joseph Casamento, Ved Gund, Hyunjea Lee +11

Room temperature ferroelectricity is observed in lattice-matched ~18% ScAlN/GaN heterostructures grown by molecular beam epitaxy on single-crystal GaN substrates. The epitaxial fil…