Gallium K-edge EXAFS measurements on cubic and hexagonal GaN

被引：14
|
作者：
Katsikini, M [1 ]
Rossner, H
Fieber-Erdmann, M
Holub-Krappe, E
Moustakas, TD
Paloura, EC
机构：
[1] Aristotle Univ Thessaloniki, Dept Phys, GR-54006 Thessaloniki, Greece
[2] Hahm Meitner Inst AS, D-14109 Berlin, Germany
[3] Boston Univ, Photon Ctr, Boston, MA 02215 USA
[4] Boston Univ, Dept ECE, Boston, MA 02215 USA
来源：
JOURNAL OF SYNCHROTRON RADIATION | 1999年 / 6卷
关键词：
GaN; EXAFS; Einstein temperature; binary semiconductors;
D O I：
10.1107/S090904959900151X
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The microstructure of undoped cubic and hexagonal GaN films is studied using temperature dependent Ga K-edge EXAFS measurements (10K-290K). The microstructure around the Ga atom is distorted due to a splitting of the second nearest neighbor shell, which consists of Ga atoms. This splitting results in an additional Ga path at a distance longer than expected by 0.8+/-0.05 A and is attributed to local lattice relaxation around nitrogen vacancies. From the temperature dependence of the DW factors for the 2(nd) nearest neighbor shell of Ga, the Einstein temperature is equal to 318+/-25K.
引用
收藏
页码：561 / 563
页数：3
相关论文
共 50 条
  • [21] A SI K-EDGE EXAFS/XANES STUDY OF SODIUM-SILICATE GLASSES
    HENDERSON, GS
    [J]. JOURNAL OF NON-CRYSTALLINE SOLIDS, 1995, 183 (1-2) : 43 - 50
  • [22] Phosphate Sorption on Boehmite with Eu(III): P K-edge EXAFS Fingerprinting
    Yoon, Soh-joung
    Bleam, William R.
    [J]. ECONOMIC AND ENVIRONMENTAL GEOLOGY, 2009, 42 (05): : 495 - 500
  • [23] IRON K-EDGE EXAFS INVESTIGATION OF ASH DEPOSITS FROM COAL COMBUSTION
    SUNDARAM, MS
    BUTCHER, TA
    KRISHNA, CR
    MANOWITZ, B
    [J]. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1990, 199 : 52 - FUEL
  • [24] Anharmonic effective pair potentials of β- and α-AgI determined by I K-edge EXAFS
    Graduate School of Science, Osaka University, Toyonaka 560, Japan
    不详
    [J]. Solid State Ionics, 1 (175-182):
  • [25] MULTIPLE SCATTERING EFFECTS IN THE COBALT K-EDGE EXAFS OF METAL CARBONYL COMPLEXES
    Binsted, N.
    Cook, S. L.
    Evans, J.
    Price, R. J.
    Greaves, G. N.
    [J]. JOURNAL DE PHYSIQUE, 1986, 47 (C-8): : 73 - 76
  • [26] Cluster model calculation of N near K-edge energy-loss fine structures in hexagonal GaN crystal
    Gao, SP
    Zhang, WH
    Li, JM
    Zhu, J
    [J]. SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY, 2001, 44 (12): : 1602 - 1607
  • [27] COPPER K-EDGE EXAFS SPECTROSCOPY OF THE CRYSTALLINE AND COLUMNAR PHASES OF COPPER STEARATE
    ABIED, H
    GUILLON, D
    SKOULIOS, A
    DEXPERT, H
    GIROUDGODQUIN, AM
    MARCHON, JC
    [J]. JOURNAL DE PHYSIQUE, 1988, 49 (02): : 345 - 352
  • [28] Cluster model calculation of N near K-edge energy-loss fine structures in hexagonal GaN crystal
    高尚鹏
    张卫华
    李家明
    朱静
    [J]. Science in China,SerA., 2001, Ser.A.2001 (12) : 1602 - 1607
  • [29] Cluster model calculation of N near K-edge energy-loss fine structures in hexagonal GaN crystal
    高尚鹏
    张卫华
    李家明
    朱静
    [J]. Science China Mathematics, 2001, (12) : 1602 - 1607
  • [30] Cluster model calculation of N near K-edge energy-loss fine structures in hexagonal GaN crystal
    Shangpeng Gao
    Weihua Zhang
    Jiaming Li
    Jing Zhu
    [J]. Science in China Series A: Mathematics, 2001, 44 : 1602 - 1607
12345