Full polar optical phonon states and dispersive spectra of a wurtzite GaN/AlN rectangular quantum wire

Li ZHANG

Makale detayları

Full polar optical phonon states and dispersive spectra of a wurtzite GaN/AlN rectangular quantum wire

Yazarlar:

Li ZHANG

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Physics 2012 Vol.36 Issue 3, pp.398-414

Belge Tipi:

Makale

Yayın Tarihi:

2/2012

Belge Dili:

Türkçe

Document ID (Org No.):

2000760362

Sıklık:

İki Aylık

eISSN:

1303-6122

pISSN:

1300-0101

Anahtar kelimeler:

Özet:

 

Within the framework of the dielectric continuum model and  Loudon's uniaxial crystal model, the full polar optical phonon modes  including the quasi-confined (QC) modes, the propagating (PR) modes,  the half-space (HS) modes, and the interface optical (IO) modes in a  quasi-one-dimensional (Q1D) wurtzite rectangular quantum wire (QWR)  structure are deduced and analyzed.  The analytical phonon states,  their dispersion equations and polar polarization eigenvectors are  derived.  Numerical calculation of dispersive spectra for these modes  is performed on a wurtzite GaN/AlN rectangular QWR. The behavior of  the QC mode reducing to the IO mode is observed clearly in the  dispersive curves of these modes, which reveals that the present  theories of phonon modes are self-consistency and correct for the  description of phonon modes in wurtzite Q1D rectangular NW. These  observations and results reveal that the confined dimensionality and  cross-section shape influence greatly the dispersive properties of  phonon modes in wurtzite quantum confined systems.

 

Within the framework of the dielectric continuum model and  Loudon's uniaxial crystal model, the full polar optical phonon modes  including the quasi-confined (QC) modes, the propagating (PR) modes,  the half-space (HS) modes, and the interface optical (IO) modes in a  quasi-one-dimensional (Q1D) wurtzite rectangular quantum wire (QWR)  structure are deduced and analyzed.  The analytical phonon states,  their dispersion equations and polar polarization eigenvectors are  derived.  Numerical calculation of dispersive spectra for these modes  is performed on a wurtzite GaN/AlN rectangular QWR. The behavior of  the QC mode reducing to the IO mode is observed clearly in the  dispersive curves of these modes, which reveals that the present  theories of phonon modes are self-consistency and correct for the  description of phonon modes in wurtzite Q1D rectangular NW. These  observations and results reveal that the confined dimensionality and  cross-section shape influence greatly the dispersive properties of  phonon modes in wurtzite quantum confined systems.

Makale detayları

Full polar optical phonon states and dispersive spectra of a wurtzite GaN/AlN rectangular quantum wire

Yazarlar:

Li ZHANG

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Physics 2012 Vol.36 Issue 3, pp.398-414

Belge Tipi:

Makale

Yayın Tarihi:

2/2012

Belge Dili:

Türkçe

Document ID (Org No.):

2000760362

Sıklık:

İki Aylık

eISSN:

1303-6122

pISSN:

1300-0101

Phonon modes

wurtzite heterostructure

rectangular quantum wires

Sayı

Makale detayları

Full polar optical phonon states and dispersive spectra of a wurtzite GaN/AlN rectangular quantum wire

Yazarlar: Li ZHANG

Yayıncı: TUBITAK

Dergi: Turkish Journal of Physics 2012 Vol.36 Issue 3, pp.398-414

Belge Tipi: Makale

Yayın Tarihi: 2/2012

Belge Dili: Türkçe

Document ID (Org No.): 2000760362

Sıklık: İki Aylık

eISSN: 1303-6122

pISSN: 1300-0101

Phonon modes

wurtzite heterostructure

rectangular quantum wires

Sayı

Yazarlar:

Li ZHANG

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Physics 2012 Vol.36 Issue 3, pp.398-414

Belge Tipi:

Makale

Yayın Tarihi:

2/2012

Belge Dili:

Türkçe

Document ID (Org No.):

2000760362

Sıklık:

İki Aylık

eISSN:

1303-6122

pISSN:

1300-0101