Optical absorption in core-shell quantum antidot with donor impurity under applied co-directed electric and magnetic fields

被引：1

作者：

Chubrei, M. V. ^{[1
]}

Holovatsky, V. A. ^{[2
]}

Holovatska, N. H. ^{[3
]}

机构：

[1] Chernivtsi Natl Univ, Dept Informat Technol & Comp Phys, Kotsiubynsky Str 2, UA-58002 Chernovtsy, Ukraine

[2] Chernivtsi Natl Univ YuriyFedkovych, Dept Thermoelectr & Med Phys, Kotsiubynsky Str 2, Chernovtsy, Ukraine

[3] Chernivtsi Natl Univ, Dept Foreign Languages Humanitites, Kotsiubynsky Str 2, Chernovtsy, Ukraine

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2024年 / 768卷 / 03期

关键词：

Energy spectrum; optical absorption coefficient; polarizability; quantum antidot; PHOTOIONIZATION CROSS-SECTION; BINDING-ENERGY; DOT; POLARIZABILITY;

D O I：

10.1080/15421406.2023.2253609

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this article, we have investigated an electron energy spectrum, optical absorption coefficients (OACs) and polarizability under the effect of the co-directed electric and magnetic fields in the multilayer spherical quantum antidot (MSQAD) Al-0.3 Ga0.7As/GaAs/Al0.3Ga0.7As with off-center impurity. The calculations were done for different dot sizes within the effective mass approximation using the matrix method. The dependence of the total, linear, and nonlinear OACs on the incident photon energy is calculated considering the intraband electron quantum transitions. The donor polarizability and impurity binding energy as function of electric field intensity are obtained at different values of the magnetic field induction.

引用

页码：40 / 49

页数：10

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