The production of vacancies in type Ib diamond

被引:19
作者
Collins, AT [1 ]
Dahwich, A [1 ]
机构
[1] Kings Coll London, Wheatstone Phys Lab, London WC2R 2LS, England
关键词
D O I
10.1088/0953-8984/15/37/L06
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Optical absorption measurements on different growth sectors of a polished slice of electron-irradiated type Ib synthetic diamond show that the vacancy concentration is almost four times higher in the high-nitrogen {111} sectors than in the low-nitrogen {115} sectors. Evidence is presented to show that the self-interstitials are trapped by nitrogen, thereby reducing the amount of correlated recombination with vacancies which occurs in the absence of nitrogen.
引用
收藏
页码:L591 / L596
页数:6
相关论文
共 11 条
[1]   The annealing of interstitial-related optical centres in type II natural and CVD diamond [J].
Allers, L ;
Collins, AT ;
Hiscock, J .
DIAMOND AND RELATED MATERIALS, 1998, 7 (2-5) :228-232
[2]   GROWTH-SECTOR DEPENDENCE OF OPTICAL-FEATURES IN LARGE SYNTHETIC DIAMONDS [J].
BURNS, RC ;
CVETKOVIC, V ;
DODGE, CN ;
EVANS, DJF ;
ROONEY, MLT ;
SPEAR, PM ;
WELBOURN, CM .
JOURNAL OF CRYSTAL GROWTH, 1990, 104 (02) :257-279
[3]   The Fermi level in diamond [J].
Collins, AT .
JOURNAL OF PHYSICS-CONDENSED MATTER, 2002, 14 (14) :3743-3750
[4]   OPTICAL STUDIES OF THE 2.367 EV VIBRONIC ABSORPTION SYSTEM IN IRRADIATED TYPE-IB DIAMOND [J].
COLLINS, AT ;
RAFIQUE, S .
PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1979, 367 (1728) :81-97
[5]   Current problems in diamond: towards a quantitative understanding [J].
Davies, G .
PHYSICA B-CONDENSED MATTER, 1999, 273-4 :15-23
[6]   CHARGE STATES OF VACANCY IN DIAMOND [J].
DAVIES, G .
NATURE, 1977, 269 (5628) :498-500
[7]   Identification of the neutral carbon [100]-split interstitial in diamond [J].
Hunt, DC ;
Twitchen, DJ ;
Newton, ME ;
Baker, JM ;
Anthony, TR ;
Banholzer, WF ;
Vagarali, SS .
PHYSICAL REVIEW B, 2000, 61 (06) :3863-3876
[8]  
IAKOUBOVSKII K, 2003, DIAM C CAMBR MA JUL
[9]   On the existence of positively charged single-substitutional nitrogen in diamond [J].
Lawson, SC ;
Fisher, D ;
Hunt, DC ;
Newton, ME .
JOURNAL OF PHYSICS-CONDENSED MATTER, 1998, 10 (27) :6171-6180
[10]   Correlation between ND1 optical absorption and the concentration of negative vacancies determined by electron paramagnetic resonance (EPR) [J].
Twitchen, DJ ;
Hunt, DC ;
Smart, V ;
Newton, ME ;
Baker, JM .
DIAMOND AND RELATED MATERIALS, 1999, 8 (8-9) :1572-1575