OBSERVATION OF A MONOVACANCY IN THE METASTABLE STATE OF THE EL2 DEFECT IN GAAS BY POSITRON-ANNIHILATION

被引：71

作者：

KRAUSE, R

SAARINEN, K

HAUTOJARVI, P

POLITY, A

GARTNER, G

CORBEL, C

机构：

[1] HELSINKI UNIV TECHNOL,PHYS LAB,SF-02150 ESPOO,FINLAND

[2] BERGAKAD FREIBERG,SEKT PHYS,O-9200 FREIBERG,GERMANY

[3] CENS,INST NATL SCI & TECH NUCL,F-91191 GIF SUR YVETTE,FRANCE

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 65卷 / 26期

关键词：

D O I：

10.1103/PhysRevLett.65.3329

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A monovacancy defect is observed by positron-lifetime and Doppler-broadening experiments in semi-insulating GaAs after photoquenching the EL2 defects. The monovacancy exhibits the same thermal and optical recoveries as the metastable state of EL2 and its concentration is proportional to that of the EL2 defect. It is concluded that the metastable state of the EL2 defect involves the monovacancy. The results indicate that the monovacancy or its immediate surroundings is negatively charged.

引用

页码：3329 / 3332

页数：4

共 19 条

[1] [Anonymous], 1983, POSITRON SOLID STATE
[2] BISTABILITY AND METASTABILITY OF THE GALLIUM VACANCY IN GAAS - THE ACTUATOR OF EL2
BARAFF, GA
SCHLUTER, M
[J]. PHYSICAL REVIEW LETTERS, 1985, 55 (21) : 2340 - 2343
[3] METASTABILITY OF THE ISOLATED ARSENIC-ANTISITE DEFECT IN GAAS
CHADI, DJ
CHANG, KJ
[J]. PHYSICAL REVIEW LETTERS, 1988, 60 (21) : 2187 - 2190
[4] POSITRON-ANNIHILATION SPECTROSCOPY OF NATIVE VACANCIES IN AS-GROWN GAAS
CORBEL, C
STUCKY, M
HAUTOJARVI, P
SAARINEN, K
MOSER, P
[J]. PHYSICAL REVIEW B, 1988, 38 (12): : 8192 - 8208
[5] NATIVE AND IRRADIATION-INDUCED MONOVACANCIES IN N-TYPE AND SEMI-INSULATING GAAS
CORBEL, C
PIERRE, F
HAUTOJARVI, P
SAARINEN, K
MOSER, P
[J]. PHYSICAL REVIEW B, 1990, 41 (15): : 10632 - 10641
[6] ISOLATED ARSENIC-ANTISITE DEFECT IN GAAS AND THE PROPERTIES OF EL2
DABROWSKI, J
SCHEFFLER, M
[J]. PHYSICAL REVIEW B, 1989, 40 (15): : 10391 - 10401
[7] INVESTIGATION OF DEFECTS IN GALLIUM-ARSENIDE USING POSITRON-ANNIHILATION
DANNEFAER, S
HOGG, B
KERR, D
[J]. PHYSICAL REVIEW B, 1984, 30 (06): : 3355 - 3366
[8] VACANCY INTERACTIONS IN GAAS
DANNEFAER, S
KERR, D
[J]. JOURNAL OF APPLIED PHYSICS, 1986, 60 (02) : 591 - 594
[9] THERMAL RECOVERY OF PHOTOQUENCHED EL2 INFRARED-ABSORPTION IN GAAS
FISCHER, DW
[J]. PHYSICAL REVIEW B, 1988, 37 (06): : 2968 - 2972
[10] HAUTOJARVI P, 1979, TOPICS CURRENT PHYSI, V12

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