✦ LIBER ✦

In-plane polarization of GaN-based heterostructures with arbitrary crystal orientation

✍ Scribed by Wei, Q. Y. ;Li, T. ;Wu, Z. H. ;Ponce, F. A.

Publisher: John Wiley and Sons
Year: 2010
Tongue: English
Weight: 486 KB
Volume: 207
Category: Article
ISSN: 0031-8965
DOI: 10.1002/pssa.200925632

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The total polarization fields of pseudomorphic In~x~Ga~1−x~N/GaN and Al~x~Ga~1−x~N/GaN heterostructures with 0 ≤ x ≤ 0.4 have been calculated as a function of the crystal orientation. Especial attention is placed on the direction and magnitude of in‐plane piezoelectric polarization, which is not negligible for the non‐polar and semi‐polar growth. For an arbitrary crystal orientation, the piezoelectric polarization prevails in the InGaN/GaN system while the spontaneous polarization prevails in the AlGaN/GaN system. The in‐plane potential due to polarization fields in non‐polar epilayers is found to depend on the degree of planarity of the heterojunctions, and on the respective lateral dimensions.

📜 SIMILAR VOLUMES

On plane defects in nematic liquid cryst

On plane defects in nematic liquid crystals with variable degree of orientation

✍ D. Roccato; E. G. Virga 📂 Article 📅 1992 🏛 Springer 🌐 English ⚖ 669 KB

Measurement of linear and cubic spin–orb

Measurement of linear and cubic spin–orbit coupling parameters in AlGaN/AlN/GaN heterostructures with a polarization-induced two-dimensional electron gas

✍ H. Cheng; N. Biyikli; Ü. Özgür; Ç. Kurdak; H. Morkoç; V.I. Litvinov 📂 Article 📅 2008 🏛 Elsevier Science 🌐 English ⚖ 309 KB

Polarization-sensitive tunable filter in

Polarization-sensitive tunable filter in a one-dimensional photonic crystal consisting of anisotropic metamaterials with arbitrary optical axis

✍ Yuan You 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 333 KB

Control of In-Plane and Out-Of-Plane Reo

Control of In-Plane and Out-Of-Plane Reorientation in Photo-Cross-Linkable Copolymer Liquid-Crystal Films by Irradiation with Linearly Polarized Ultraviolet Light and Annealing

✍ Nobuhiro Kawatsuki; Nobuyoshi Furuso; Emi Uchida; Tohei Yamamoto 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 316 KB

## Abstract This paper describes thermally enhanced in‐plane and out‐of‐plane reorientation of mesogenic groups in copolymer liquid‐crystal (CPLC) films that have a photo‐cross‐linkable 4‐(4′‐methoxycinnamoyl)biphenyl (MCB) side group and a 4‐methoxybiphenyl (4MB) side group. The side groups are cr

Photocontrol of Birefringence and In-Pla

Photocontrol of Birefringence and In-Plane Molecular Orientation in Copolymer Liquid Crystal Films with 4-Methoxyazobenzene and Photo-Cross-Linkable Side Groups

✍ Nobuhiro Kawatsuki; Emi Uchida; Tohei Yamamoto 📂 Article 📅 2003 🏛 John Wiley and Sons 🌐 English ⚖ 139 KB

## Abstract Control of the in‐plane orientation direction in a polymethacrylate copolymer liquid crystal film substituted with 4‐methoxyazobenzene (4MAz) and 4‐methoxycinnamoyloxybiphenyl (4MCB) side groups, and control of the reversible birefringence of the resultant oriented film are described. H