79 citations · 261 across the 9 of their papers we have counts for
9 papers
Experimental observation of ballistic to diffusive transition in AlN thin films
Md Shafkat Bin Hoque, Michael E. Liao, Saman Zare +10
Bulk AlN possesses high thermal conductivity due to long phonon mean-free-paths, high group velocity, and long lifetimes. However, the thermal transport scenario becomes very diffe…
Millimeter Wave Thin-Film Bulk Acoustic Resonator in Sputtered Scandium Aluminum Nitride
Sinwoo Cho, Omar Barrera, Pietro Simeoni +8
This work reports a millimeter wave (mmWave) thin-film bulk acoustic resonator (FBAR) in sputtered scandium aluminum nitride (ScAlN). This paper identifies challenges of frequency…
Thermal conductivity measurements of sub-surface buried substrates by steady-state thermoreflectance
Md Shafkat Bin Hoque, Yee Rui Koh, Kiumars Aryana +10
Measuring the thermal conductivity of sub-surface buried substrates are of significant practical interests. However, this remains challenging with traditional pump-probe spectrosco…
Molecular Beam Epitaxy Growth of High Crystalline Quality LiNbO
M. Brooks Tellekamp, Joshua C. Shank, Mark S. Goorsky +1
Lithium niobate is a multi-functional material with wide reaching applications in acoustics, optics, and electronics. Commercial applications for lithium niobate require high cryst…
Molecular Beam Epitaxy of lithium niobium oxide multifunctional materials
M. Brooks Tellekamp, Joshua C. Shank, W. Alan Doolittle
The role of stoichiometry and growth temperature in the preferential nucleation of material phases in the Li-Nb-O family are explored yielding an empirical growth phase diagram. It…
Scalable Memdiodes Exhibiting Rectification and Hysteresis for Neuromorphic Computing
Joshua C. Shank, M. Brooks Tellekamp, Matthew J. Wahila +5
Metal-NbO-metal memdiodes exhibiting rectification, hysteresis, and capacitance are demonstrated for applications in neuromorphic circuitry. These devices do not requ…