LOCAL VIBRATIONAL-MODES IN MG-DOPED GALLIUM NITRIDE

被引：76

作者：

BRANDT, MS

AGER, JW

GOTZ, W

JOHNSON, NM

HARRIS, JS

MOLNAR, RJ

MOUSTAKAS, TD

机构：

[1] XEROX CORP, PALO ALTO RES CTR, PALO ALTO, CA 94304 USA

[2] LAWRENCE BERKELEY LAB, BERKELEY, CA 94720 USA

[3] STANFORD UNIV, SOLID STATE ELECTR LAB, STANFORD, CA 94305 USA

[4] BOSTON UNIV, DEPT ELECT COMP & SYST ENGN, BOSTON, MA 02215 USA

来源：

PHYSICAL REVIEW B | 1994年 / 49卷 / 20期

关键词：

D O I：

10.1103/PhysRevB.49.14758

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Four local vibrational modes are reported for Mg-doped wurtzite GaN, which as grown possesses high concentrations of hydrogen. The modes, studied by Raman and infrared absorption spectroscopy appear to form two pairs. Based on the observed selection rules, one pair, with room-temperature frequencies of 2168 and 2219 cm-1 is assigned to inequivalent Mg-H complexes in the c plane and parallel to the c axis, respectively. The origin of the second pair of modes at 2151 and 2185 cm-1, which are IR inactive, is speculatively linked to the presence of diatomic molecules such as N2 or H-2.

引用

页码：14758 / 14761

页数：4

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