Volume 180, Issue 1 pp. 133-138
Original Paper

Growth of M-Plane GaN(11-00): A Way to Evade Electrical Polarization in Nitrides

P. Waltereit

P. Waltereit

Paul-Drude-Institut für Festkörperelektronik, Hausvogteiplatz 5-7, D-10177 Berlin, Germany

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O. Brandt

O. Brandt

Paul-Drude-Institut für Festkörperelektronik, Hausvogteiplatz 5-7, D-10177 Berlin, Germany

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M. Ramsteiner

M. Ramsteiner

Paul-Drude-Institut für Festkörperelektronik, Hausvogteiplatz 5-7, D-10177 Berlin, Germany

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A. Trampert

A. Trampert

Paul-Drude-Institut für Festkörperelektronik, Hausvogteiplatz 5-7, D-10177 Berlin, Germany

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H.T. Grahn

H.T. Grahn

Paul-Drude-Institut für Festkörperelektronik, Hausvogteiplatz 5-7, D-10177 Berlin, Germany

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J. Menniger

J. Menniger

Paul-Drude-Institut für Festkörperelektronik, Hausvogteiplatz 5-7, D-10177 Berlin, Germany

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M. Reiche

M. Reiche

Paul-Drude-Institut für Festkörperelektronik, Hausvogteiplatz 5-7, D-10177 Berlin, Germany

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R. Uecker

R. Uecker

Institut für Kristallzüchtung, Max-Born-Straße 2, D-12489 Berlin, Germany

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P. Reiche

P. Reiche

Institut für Kristallzüchtung, Max-Born-Straße 2, D-12489 Berlin, Germany

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K.H. Ploog

K.H. Ploog

Paul-Drude-Institut für Festkörperelektronik, Hausvogteiplatz 5-7, D-10177 Berlin, Germany

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Abstract

We investigate the growth of M-plane GaN(1equation image00) on γ-LiAlO2(100) by molecular beam epitaxy. The crystal orientation and structural properties of buffer layers are examined by means of reflection high-energy electron diffraction, high-resolution transmission electron microscopy, X-ray diffraction, Raman scattering, and atomic force microscopy. The layers are shown to be single-phase GaN(1equation image00}<$>) within the measurements' sensitivity. In contrast to the ubiquitous C-plane GaN[0001] orientation, the M-plane of wurtzite nitrides is free of electrical polarization. This is experimentally verified for (Al,Ga)N/GaN heterostructures by continuous-wave and time-resolved luminescence.

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