Spontaneous polarization and band gap bowing in YxAl yGa1-x-yN alloys lattice-matched to GaN

Kazuhiro Shimada, Atsuhito Zenpuku, Kazuya Fujiwara, Kouji Hazu, Shigefusa F. Chichibu, Masahiro Hata, Hiroyuki Sazawa, Tomoyuki Takada, Takayuki Sota

研究成果: Article

7 引用 (Scopus)

抜粋

First-principles calculations are carried out to estimate the spontaneous polarization and the energy band gap bowing in YxAl yGa1-x-yN alloys lattice-matched to GaN. The ground state properties of alloys are computed by using the pseudopotential-planewave method in conjunction with generalized gradient approximation to density functional theory. We find nonlinear behavior of the spontaneous polarization and the band gap energies in Y xAlyGa1-x-yN alloys and the values depend on the atomic geometry in the unit cell, especially on that of yttrium.

元の言語English
記事番号074114
ジャーナルJournal of Applied Physics
110
発行部数7
DOI
出版物ステータスPublished - 2011 10 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

フィンガープリント Spontaneous polarization and band gap bowing in Y<sub>x</sub>Al <sub>y</sub>Ga<sub>1-x-y</sub>N alloys lattice-matched to GaN' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用

    Shimada, K., Zenpuku, A., Fujiwara, K., Hazu, K., Chichibu, S. F., Hata, M., Sazawa, H., Takada, T., & Sota, T. (2011). Spontaneous polarization and band gap bowing in YxAl yGa1-x-yN alloys lattice-matched to GaN. Journal of Applied Physics, 110(7), [074114]. https://doi.org/10.1063/1.3651154