D(0) AND D(-) OFF-CENTER IN STRONG MAGNETIC-FIELDS AND QUANTUM-WELLS

被引:16
作者
ZHU, JL [1 ]
XU, S [1 ]
机构
[1] TSING HUA UNIV,DEPT PHYS,BEIJING 100084,PEOPLES R CHINA
关键词
D O I
10.1088/0953-8984/6/21/003
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Variational calculations am performed for the ground and first excited states of D0 off centre and the lowest singlet and triplet states of D- off centre in quantum wells in a magnetic field. It is found that the off-centre effect on die binding energies increases with increasing magnetic field. The binding energy of the triplet state can be larger than that of die corresponding singlet one if the magnetic field is strong enough.
引用
收藏
页码:L299 / L304
页数:6
相关论文
共 12 条
[1]   2-DIMENSIONAL D-CENTERS [J].
HUANT, S ;
NAJDA, SP ;
ETIENNE, B .
PHYSICAL REVIEW LETTERS, 1990, 65 (12) :1486-1489
[2]  
LARSEN D, 1979, PHYS REV B, V12, P5217
[3]   BINDING OF D- IONS IN A MAGNETIC-FIELD [J].
LARSEN, DM .
PHYSICAL REVIEW LETTERS, 1979, 42 (11) :742-745
[4]   VARIATIONAL STUDIES OF 2-DIMENSIONAL AND 3-DIMENSIONAL D- CENTERS IN MAGNETIC-FIELDS [J].
LARSEN, DM ;
MCCANN, SY .
PHYSICAL REVIEW B, 1992, 46 (07) :3966-3970
[5]   EXCITED-STATES OF THE 2-DIMENSIONAL D- CENTER IN MAGNETIC-FIELDS [J].
LARSEN, DM ;
MCCANN, SY .
PHYSICAL REVIEW B, 1992, 45 (07) :3485-3488
[6]  
LOUIE SG, 1992, NEW HORIZONS LOW DIM, P445
[7]   DEFINITIVE IDENTIFICATION OF D- CENTERS IN GAAS QUANTUM-WELLS BY TILT-INDUCED LINE SPLITTING IN A MAGNETIC-FIELD [J].
MUELLER, ER ;
LARSEN, DM ;
WALDMAN, J ;
GOODHUE, WD .
PHYSICAL REVIEW LETTERS, 1992, 68 (14) :2204-2207
[8]  
NATORI A, 1978, J PHYS SOC JPN, V44, P1216, DOI 10.1143/JPSJ.44.1216
[9]   GROUND-STATE ENERGY OF A D-ION IN TWO-DIMENSIONAL SEMICONDUCTORS [J].
PHELPS, DE ;
BAJAJ, KK .
PHYSICAL REVIEW B, 1983, 27 (08) :4883-4886
[10]   NEGATIVE-DONOR CENTERS IN 2 DIMENSIONS [J].
SANDLER, NP ;
PROETTO, CR .
PHYSICAL REVIEW B, 1992, 46 (12) :7707-7712