Surface reconstructions of cubic gallium nitride (001) grown by radio frequency nitrogen plasma molecular beam epitaxy under gallium-rich conditions

Muhammad B. Haider; Rong Yang; Costel Constantin; Erdong Lu; Arthur R. Smith; Hamad A.H. Al-Brithen

doi:10.1063/1.2356604

Surface reconstructions of cubic gallium nitride (001) grown by radio frequency nitrogen plasma molecular beam epitaxy under gallium-rich conditions

Muhammad B. Haider
, Rong Yang
, Costel Constantin
, Erdong Lu
, Arthur R. Smith^*
, Hamad A.H. Al-Brithen

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

Cubic GaN has been grown under gallium (Ga)-rich growth conditions using radio frequency nitrogen plasma molecular beam epitaxy on MgO(001) substrates. Reflection high energy electron diffraction patterns indicate the smoothness of the c-GaN surface and show 2× and even 8× periodicities after the growth at sample temperature Ts <200 °C and 1×1 at higher temperatures. Scanning tunneling microscopy images reveal a sequence of variant surface reconstructions including c (4×12), 4×7, c (4×16), 4×9, c (4×20), and 4×11. These variant reconstructions correspond to slightly different Ga adatom coverages all less than 14 ML, with 4×11 having the highest, and c (4×12) the lowest Ga coverage. The electronic properties of these six variant reconstructions are investigated, and they are found to have a metallic nature.

Original language	English
Article number	083516
Journal	Journal of Applied Physics
Volume	100
Issue number	8
DOIs	https://doi.org/10.1063/1.2356604
State	Published - 2006
Externally published	Yes

Bibliographical note

Funding Information:
The material presented here is based upon work supported by the National Science Foundation under Grant Nos. 9983816 and 0304314. Support is also acknowledged from the Office of Naval Research Grant No. N00014-99-1-0528.

ASJC Scopus subject areas

General Physics and Astronomy

Access to Document

10.1063/1.2356604

Cite this

@article{409b7d278c214175941fddc881ba32c7,

title = "Surface reconstructions of cubic gallium nitride (001) grown by radio frequency nitrogen plasma molecular beam epitaxy under gallium-rich conditions",

abstract = "Cubic GaN has been grown under gallium (Ga)-rich growth conditions using radio frequency nitrogen plasma molecular beam epitaxy on MgO(001) substrates. Reflection high energy electron diffraction patterns indicate the smoothness of the c-GaN surface and show 2× and even 8× periodicities after the growth at sample temperature Ts <200 °C and 1×1 at higher temperatures. Scanning tunneling microscopy images reveal a sequence of variant surface reconstructions including c (4×12), 4×7, c (4×16), 4×9, c (4×20), and 4×11. These variant reconstructions correspond to slightly different Ga adatom coverages all less than 14 ML, with 4×11 having the highest, and c (4×12) the lowest Ga coverage. The electronic properties of these six variant reconstructions are investigated, and they are found to have a metallic nature.",

author = "Haider, \{Muhammad B.\} and Rong Yang and Costel Constantin and Erdong Lu and Smith, \{Arthur R.\} and Al-Brithen, \{Hamad A.H.\}",

note = "Funding Information: The material presented here is based upon work supported by the National Science Foundation under Grant Nos. 9983816 and 0304314. Support is also acknowledged from the Office of Naval Research Grant No. N00014-99-1-0528.",

year = "2006",

doi = "10.1063/1.2356604",

language = "English",

volume = "100",

journal = "Journal of Applied Physics",

issn = "0021-8979",

number = "8",

}

TY - JOUR

T1 - Surface reconstructions of cubic gallium nitride (001) grown by radio frequency nitrogen plasma molecular beam epitaxy under gallium-rich conditions

AU - Haider, Muhammad B.

AU - Yang, Rong

AU - Constantin, Costel

AU - Lu, Erdong

AU - Smith, Arthur R.

AU - Al-Brithen, Hamad A.H.

N1 - Funding Information: The material presented here is based upon work supported by the National Science Foundation under Grant Nos. 9983816 and 0304314. Support is also acknowledged from the Office of Naval Research Grant No. N00014-99-1-0528.

PY - 2006

Y1 - 2006

N2 - Cubic GaN has been grown under gallium (Ga)-rich growth conditions using radio frequency nitrogen plasma molecular beam epitaxy on MgO(001) substrates. Reflection high energy electron diffraction patterns indicate the smoothness of the c-GaN surface and show 2× and even 8× periodicities after the growth at sample temperature Ts <200 °C and 1×1 at higher temperatures. Scanning tunneling microscopy images reveal a sequence of variant surface reconstructions including c (4×12), 4×7, c (4×16), 4×9, c (4×20), and 4×11. These variant reconstructions correspond to slightly different Ga adatom coverages all less than 14 ML, with 4×11 having the highest, and c (4×12) the lowest Ga coverage. The electronic properties of these six variant reconstructions are investigated, and they are found to have a metallic nature.

AB - Cubic GaN has been grown under gallium (Ga)-rich growth conditions using radio frequency nitrogen plasma molecular beam epitaxy on MgO(001) substrates. Reflection high energy electron diffraction patterns indicate the smoothness of the c-GaN surface and show 2× and even 8× periodicities after the growth at sample temperature Ts <200 °C and 1×1 at higher temperatures. Scanning tunneling microscopy images reveal a sequence of variant surface reconstructions including c (4×12), 4×7, c (4×16), 4×9, c (4×20), and 4×11. These variant reconstructions correspond to slightly different Ga adatom coverages all less than 14 ML, with 4×11 having the highest, and c (4×12) the lowest Ga coverage. The electronic properties of these six variant reconstructions are investigated, and they are found to have a metallic nature.

UR - https://www.scopus.com/pages/publications/33750512974

U2 - 10.1063/1.2356604

DO - 10.1063/1.2356604

M3 - Article

AN - SCOPUS:33750512974

SN - 0021-8979

VL - 100

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 8

M1 - 083516

ER -

Surface reconstructions of cubic gallium nitride (001) grown by radio frequency nitrogen plasma molecular beam epitaxy under gallium-rich conditions

Abstract

Bibliographical note

ASJC Scopus subject areas

Access to Document

Fingerprint

Cite this