Simultaneous effects of pressure and temperature on the binding energy and diamagnetic susceptibility of a laser dressed donor in a spherical quantum dot

被引：28

作者：

Vaseghi, B. ^{[1
]}

Sajadi, T. ^{[1
]}

机构：

[1] Univ Yasuj, Coll Sci, Dept Phys, Yasuj 75914353, Iran

来源：

PHYSICA B-CONDENSED MATTER | 2012年 / 407卷 / 14期

关键词：

Binding energy; Diamagnetic susceptibility; Pressure; Temperature; Laser dressed potential; NONLINEAR-OPTICAL PROPERTIES; HYDROGENIC IMPURITY; HYDROSTATIC-PRESSURE; MAGNETIC-FIELDS; ELECTRIC-FIELD; STATES; WELL;

D O I：

10.1016/j.physb.2012.04.028

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Binding energies and diamagnetic susceptibility of an impurity in a spherical GaAs quantum dot under the simultaneous influence of static pressure, temperature and laser radiation are investigated. Pressure- and temperature-dependent dressed potential which is produced by the combined effects of laser radiation and impurity considerably change the energy spectrum and diamagnetic susceptibility of the system. It is shown that binding energies and diamagnetic susceptibility increase with increasing pressure. Moreover, laser radiation effects on the diamagnetic susceptibility are not significant in comparison with its effects on the binding energy. (c) 2012 Elsevier B.V. All rights reserved.

引用

页码：2790 / 2793

页数：4

共 27 条

[1] Effect of anisotropy of band structure on optical gain in spherical quantum dots based on PbS and PbSe [J].

Andreev, AD ;

Lipovskii, AA .

SEMICONDUCTORS, 1999, 33 (12) :1304-1308

[2] Effect of an electric field on the Bohm-Aharonov oscillations in the electronic spectrum of a quantum ring [J].

Barticevic, Z ;

Fuster, G ;

Pacheco, M .

PHYSICAL REVIEW B, 2002, 65 (19) :1-4

[3] Electronic structure and nonlinear optical rectification in a quantum dot: effects of impurities and external electric field [J].

Baskoutas, S. ;

Paspalakis, E. ;

Terzis, A. F. .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2007, 19 (39)

[4] HYDROGENIC IMPURITY STATES IN A QUANTUM WELL - A SIMPLE-MODEL [J].

BASTARD, G .

PHYSICAL REVIEW B, 1981, 24 (08) :4714-4722

[5] GAMMA-X MIXING IN GAAS/ALXGA1-XAS COUPLED DOUBLE QUANTUM-WELLS UNDER HYDROSTATIC-PRESSURE [J].

BURNETT, JH ;

CHEONG, HM ;

PAUL, W ;

KOTELES, ES ;

ELMAN, B .

PHYSICAL REVIEW B, 1993, 47 (04) :1991-1997

[6] Simultaneous effects of electric and magnetic fields in a GaAs/AlAs spherical quantum dot with a hydrogenic impurity [J].

Dane, C. ;

Akbas, H. ;

Minez, S. ;

Guleroglu, A. .

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2010, 42 (07) :1901-1904

[7] Combined effects of intense laser field and applied electric field on exciton states in GaAs quantum wells: Transition from the single to double quantum well [J].

Duque, C. A. ;

Mora-Ramos, M. E. ;

Kasapoglu, E. ;

Sari, H. ;

Sokmen, I. .

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2012, 249 (01) :118-127

[8] Effects of an electric field on the confined hydrogen impurity states in a spherical parabolic quantum dot [J].

He, Lili ;

Xie, Wenfang .

SUPERLATTICES AND MICROSTRUCTURES, 2010, 47 (02) :266-273

[9] Numerical study of spin relaxation in a quantum wire with spin-orbit interaction [J].

Kaneko, Tomoaki ;

Koshino, Mikito ;

Ando, Tsuneya .

PHYSICAL REVIEW B, 2008, 78 (24)

[10] The hydrostatic pressure and temperature effects on donor impurities in cylindrical quantum wire under the magnetic field [J].

Kasapoglu, E. ;

Ungan, F. ;

Sari, H. ;

Sokmen, I. .

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2010, 42 (05) :1623-1626

← 1 2 3 →