Electron paramagnetic resonance studies of nitrogen interstitial defects in diamond

被引:27
作者
Felton, S. [1 ]
Cann, B. L. [1 ]
Edmonds, A. M. [1 ]
Liggins, S. [1 ]
Cruddace, R. J. [1 ]
Newton, M. E. [1 ]
Fisher, D. [2 ]
Baker, J. M. [3 ]
机构
[1] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England
[2] Diamond Trading Co, DTC Res Ctr, Maidenhead SL6 6JW, Berks, England
[3] Univ Oxford, Clarendon Lab, Oxford OX1 3PU, England
基金
英国工程与自然科学研究理事会;
关键词
GROWTH-SECTOR DEPENDENCE; OPTICAL-CENTERS; NEUTRAL VACANCY; EPR IDENTIFICATION; UNIAXIAL-STRESS; TEMPERATURE; AGGREGATION; ABSORPTION; ATOMS; R1;
D O I
10.1088/0953-8984/21/36/364212
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
We report on electron paramagnetic resonance (EPR) studies of nitrogen doped diamond that has been (15)N enriched, electron irradiated and annealed. EPR spectra from two new nitrogen containing S = 1/2 defects are detected and labelled WAR9 and WAR10. We show that the properties of these defects are consistent with them being the < 001 >-nitrogen split interstitial and the < 001 >-nitrogen split interstitial-< 001 >-carbon split interstitial pair, respectively. We also provide an explanation for why these defects have previously eluded discovery.
引用
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页数:8
相关论文
共 37 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]   NEUTRAL VACANCY IN DIAMOND [J].
CLARK, CD ;
WALKER, J .
PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1973, 334 (1597) :241-257
[4]   Things we still don't know about optical centres in diamond [J].
Collins, AT .
DIAMOND AND RELATED MATERIALS, 1999, 8 (8-9) :1455-1462
[5]   High-temperature annealing of optical centers in type-I diamond [J].
Collins, AT ;
Connor, A ;
Ly, CH ;
Shareef, A ;
Spear, PM .
JOURNAL OF APPLIED PHYSICS, 2005, 97 (08)
[6]   The annealing of interstitial-related optical centres in type Ib diamond [J].
Collins, AT ;
Dahwich, A .
DIAMOND AND RELATED MATERIALS, 2004, 13 (11-12) :1959-1962
[7]   VACANCY ENHANCED AGGREGATION OF NITROGEN IN DIAMOND [J].
COLLINS, AT .
JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1980, 13 (14) :2641-2650
[8]   Colour changes produced in natural brown diamonds by high-pressure, high-temperature treatment [J].
Collins, AT ;
Kanda, H ;
Kitawaki, H .
DIAMOND AND RELATED MATERIALS, 2000, 9 (02) :113-122
[9]  
David R.L., 2006, CRC Handbook of Chemistry and Physics
[10]   SYMMETRY PROPERTIES OF ND1 ABSORPTION CENTRE IN ELECTRON-IRRADIATED DIAMOND [J].
DAVIES, G ;
LIGHTOWLERS, EC .
JOURNAL OF PHYSICS PART C SOLID STATE PHYSICS, 1970, 3 (03) :638-+