Studies of MBE-Grown Single and Multiple AlN/GaN Heterojunctions

This book is Yu Cao's Master dissertation under Prof. Jena's direction. The book discussed the growth of single and multiple AlN/GaN heterojunctions by Molecular Beam Epitaxy (MBE). Transport properties of single AlN/GaN heterojunctions have been studied. Record-low sheet resistance in single nitride heterojunctions have been achieved. Dominant scattering mechanisms in AlN/GaN heterojunctions are discussed with the support of experimental results. Shubnikov de-Haas oscillations have been observed for the first time in binary nitrides. In the study of AlN/GaN superlattices, theoretical calculation for subband energy is demonstrated under the approximation of using Airy function as the electron wavefunction. Acoustic phonon propagation across AlN/GaN superlattices are studied based on transfer matrix method. Transmission rate of acoustic phonons in AlN/GaN superlattices with different structures are modeled. Phonon filters and cavities are design according to this study with the support of simulations.

Autorentext

Yu Cao received B.S. degree in Phys from Nanjing University in 2002 and M.S. degree in Electrical Engineering in 2003 from Natl Univ. of Singapore. He has been a graduate student in the Dept. of Elec. Eng., Univ of Notre Dame since 2005. Debdeep Jena has been an Assistant Professor of Electrical Engineering at the Univ of Notre Dame since 2003.

Klappentext

This book is Yu Cao's Master dissertation under Prof. Jena's direction. The book discussed the growth of single and multiple AlN/GaN heterojunctions by Molecular Beam Epitaxy (MBE). Transport properties of single AlN/GaN heterojunctions have been studied. Record-low sheet resistance in single nitride heterojunctions have been achieved. Dominant scattering mechanisms in AlN/GaN heterojunctions are discussed with the support of experimental results. Shubnikov de-Haas oscillations have been observed for the first time in binary nitrides. In the study of AlN/GaN superlattices, theoretical calculation for subband energy is demonstrated under the approximation of using Airy function as the electron wavefunction. Acoustic phonon propagation across AlN/GaN superlattices are studied based on transfer matrix method. Transmission rate of acoustic phonons in AlN/GaN superlattices with different structures are modeled. Phonon filters and cavities are design according to this study with the support of simulations.