L
L. Wittmer
Researcher at Technische Universität München
Publications - 3
Citations - 2650
L. Wittmer is an academic researcher from Technische Universität München. The author has contributed to research in topics: Wurtzite crystal structure & Molecular beam epitaxy. The author has an hindex of 3, co-authored 3 publications receiving 2442 citations.
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Journal ArticleDOI
Two-dimensional electron gases induced by spontaneous and piezoelectric polarization charges in N- and Ga-face AlGaN/GaN heterostructures
Oliver Ambacher,Joseph A. Smart,James R. Shealy,Nils Weimann,K. Chu,M. J. Murphy,William J. Schaff,L.F. Eastman,Roman Dimitrov,L. Wittmer,Martin Stutzmann,W. Rieger,J. Hilsenbeck +12 more
TL;DR: In this article, the authors investigated the role of spontaneous and piezoelectric polarization on the carrier confinement at GaN/AlGaN and AlGaN/GaN interfaces.
Journal ArticleDOI
Comparison of N-face and Ga-face AlGaN/GaN-Based High Electron Mobility Transistors Grown by Plasma-Induced Molecular Beam Epitaxy
Roman Dimitrov,A. Mitchell,L. Wittmer,Oliver Ambacher,Martin Stutzmann,J. Hilsenbeck,W. Rieger +6 more
TL;DR: In this paper, a GaN/AlxGa1-xN/GaN high electron mobility transistors were grown by plasma-induced molecular beam epitaxy in order to study the formation and electric transport properties of two-dimensional electron gases.