title: ÐÐ½Ð¸Ð·Ð¾ÑÑÐ¾Ð¿Ð¸Ñ ÑÑÑÐµÐºÑÐ° Ð¥Ð°Ð½Ð»Ðµ Ð² Ð½Ð°ÐºÐ»Ð¾Ð½Ð½Ð¾Ð¼ Ð¼Ð°Ð³Ð½Ð¸ÑÐ½Ð¾Ð¼ Ð¿Ð¾Ð»Ðµ Ð² Ð½ÐµÐ¿ÑÑÐ¼Ð¾Ð·Ð¾Ð½Ð½ÑÑ ÐºÐ²Ð°Ð½ÑÐ¾Ð²ÑÑ ÑÐ¾ÑÐºÐ°Ñ (In,Al)As/AlAs
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Anisotropy of the Hanle effect in a tilted magnetic field in indirect-gap quantum dots (In,Al)As/AlAs
Creators: name: Ð¦Ð°Ð¿Ð°Ð½Ð¾Ð²Ð°, ÐÐ¸Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2023
Subjects: ÑÐ¿Ð¸Ð½ÑÑÐ¾Ð½Ð¸ÐºÐ°
Ð¾Ð¿ÑÐ¸ÑÐµÑÐºÐ°Ñ Ð¾ÑÐ¸ÐµÐ½ÑÐ°ÑÐ¸Ñ
ÑÐ¾ÑÐ¾Ð»ÑÐ¼Ð¸Ð½ÐµÑÑÐµÐ½ÑÐ¸Ñ
ÑÑÑÐµÐºÑ Ð¥Ð°Ð½Ð»Ðµ
g â ÑÐ°ÐºÑÐ¾Ñ
ÐºÐ²Ð°Ð½ÑÐ¾Ð²ÑÐµ ÑÐ¾ÑÐºÐ¸
spintronics
optical orientation
photoluminescence
Hanle effect
g â factor
quantum dots

description: Ð¦ÐµÐ»ÑÑ Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ Ð±ÑÐ»Ð¾ Ð¸Ð·ÑÑÐµÐ½Ð¸Ðµ Ð´ÐµÐ¿Ð¾Ð»ÑÑÐ¸Ð·Ð°ÑÐ¸Ð¸ ÑÐ¾ÑÐ¾Ð»ÑÐ¼Ð¸Ð½ÐµÑÑÐµÐ½ÑÐ¸Ð¸ Ð² Ð½Ð°ÐºÐ»Ð¾Ð½Ð½Ð¾Ð¼ Ð¼Ð°Ð³Ð½Ð¸ÑÐ½Ð¾Ð¼ Ð¿Ð¾Ð»Ðµ (ÑÑÑÐµÐºÑ Ð¥Ð°Ð½Ð»Ðµ) Ð² Ð½ÐµÐ¿ÑÑÐ¼Ð¾Ð·Ð¾Ð½Ð½ÑÑ ÐºÐ²Ð°Ð½ÑÐ¾Ð²ÑÑ ÑÐ¾ÑÐºÐ°Ñ (In,Al)As/AlAs. ÐÐºÑÑÐ°Ð»ÑÐ½Ð¾ÑÑÑ Ð² Ð¸Ð·ÑÑÐµÐ½Ð¸Ð¸ ÐºÐ²Ð°Ð½ÑÐ¾Ð²ÑÑ ÑÐ¾ÑÐµÐº Ð·Ð°ÐºÐ»ÑÑÐ°ÐµÑÑÑ Ð² ÑÐ¾Ð¼, ÑÑÐ¾ Ð¾Ð½Ð¸ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÑÑÑ Ð±Ð¾Ð»ÑÑÐ¾Ð¹ Ð¸Ð½ÑÐµÑÐµÑ Ð² ÐºÐ°ÑÐµÑÑÐ²Ðµ Ð¾Ð±ÑÐµÐºÑÐ¾Ð² Ñ Ð±Ð¾Ð»ÑÑÐ¸Ð¼Ð¸ Ð²ÑÐµÐ¼ÐµÐ½Ð°Ð¼Ð¸ Ð¶Ð¸Ð·Ð½Ð¸ ÑÐ¿Ð¸Ð½Ð¾Ð² ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð¾Ð² Ð¸ Ð´ÑÑÐ¾Ðº, ÑÑÐ¾ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸Ð·ÑÐµÑ Ð¸Ñ ÐºÐ°Ðº Ð¿ÐµÑÑÐ¿ÐµÐºÑÐ¸Ð²Ð½ÑÑ Ð¿ÐµÑÐµÐ½Ð¾ÑÑÐ¸ÐºÐ¾Ð² Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¸ Ð´Ð»Ñ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ Ð² ÐºÐ²Ð°Ð½ÑÐ¾Ð²ÑÑ Ð²ÑÑÐ¸ÑÐ»ÐµÐ½Ð¸ÑÑ. ÐÐ·ÑÑÐ°ÐµÐ¼ÑÐ¹ Ð¾Ð±ÑÐ°Ð·ÐµÑ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÑÐ» ÑÐ¾Ð±Ð¾Ð¹ ÑÐ°Ð¼Ð¾Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð¾Ð²Ð°Ð½Ð½ÑÐµ ÐºÐ²Ð°Ð½ÑÐ¾Ð²ÑÐµ ÑÐ¾ÑÐºÐ¸ (In,Al)As, Ð²ÑÑÑÐ¾ÐµÐ½Ð½ÑÐµ Ð² Ð¼Ð°ÑÑÐ¸ÑÑ AlAs, Ð²ÑÑÐ°ÑÐµÐ½Ð½ÑÐµ Ð½Ð° Ð¿Ð¾Ð´Ð»Ð¾Ð¶ÐºÐµ GaAs, Ð¸ Ð¿Ð¾Ð¼ÐµÑÐ°Ð»ÑÑ Ð² Ð¼Ð°Ð³Ð½Ð¸ÑÐ½Ð¾Ðµ Ð¿Ð¾Ð»Ðµ, ÑÐ³Ð¾Ð» Ð¼ÐµÐ¶Ð´Ñ Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸ÐµÐ¼ Ð¼Ð°Ð³Ð½Ð¸ÑÐ½Ð¾Ð³Ð¾ Ð¿Ð¾Ð»Ñ Ð¸ Ð»ÑÑÐ° Ð»Ð°Ð·ÐµÑÐ° Ð¼ÐµÐ½ÑÐ»ÑÑ Ð² Ð´Ð¸Ð°Ð¿Ð°Ð·Ð¾Ð½Ðµ Ð¾Ñ 87 Ð´Ð¾ 92 Ð³ÑÐ°Ð´ÑÑÐ¾Ð². Ð ÑÐ¾Ð´Ðµ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ° Ð±ÑÐ»Ð¸ Ð¿Ð¾ÑÑÑÐ¾ÐµÐ½Ñ Ð·Ð°Ð²Ð¸ÑÐ¸Ð¼Ð¾ÑÑÐ¸ ÑÑÐµÐ¿ÐµÐ½Ð¸ ÑÐ¸ÑÐºÑÐ»ÑÑÐ½Ð¾Ð¹ Ð¿Ð¾Ð»ÑÑÐ¸Ð·Ð°ÑÐ¸Ð¸ ÑÐ¾ÑÐ¾Ð»ÑÐ¼Ð¸Ð½ÐµÑÑÐµÐ½ÑÐ¸Ð¸ Ð¾Ñ Ð¼Ð°Ð³Ð½Ð¸ÑÐ½Ð¾Ð³Ð¾ Ð¿Ð¾Ð»Ñ Ð¿ÑÐ¸ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ Ð·Ð½Ð°ÑÐµÐ½Ð¸ÑÑ ÑÐ³Ð»Ð° Ð¼ÐµÐ¶Ð´Ñ Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸ÐµÐ¼ Ð¼Ð°Ð³Ð½Ð¸ÑÐ½Ð¾Ð³Ð¾ Ð¿Ð¾Ð»Ñ Ð¸ Ð»ÑÑÐ° Ð»Ð°Ð·ÐµÑÐ°, Ð¿Ð¾Ð»ÑÑÐ¸ÑÐ¸Ð½Ñ ÐºÑÐ¸Ð²Ð¾Ð¹ Ð´ÐµÐ¿Ð¾Ð»ÑÑÐ¸Ð·Ð°ÑÐ¸Ð¸ Ð»ÑÐ¼Ð¸Ð½ÐµÑÑÐµÐ½ÑÐ¸Ð¸ Ð¾Ñ ÑÐ³Ð»Ð°, ÑÐ¸ÑÐºÑÐ»ÑÑÐ½Ð¾Ð¹ Ð¿Ð¾Ð»ÑÑÐ¸Ð·Ð°ÑÐ¸Ð¸ Ð² Ð¿ÑÐµÐ´ÐµÐ»Ð°Ñ Ð±Ð¾Ð»ÑÑÐ¸Ñ Ð¿Ð¾Ð»ÐµÐ¹ Ð¾Ñ ÑÐ³Ð»Ð°, ÑÐ¿ÐµÐºÑÑ Ð¸Ð½ÑÐµÐ½ÑÐ¸Ð²Ð½Ð¾ÑÑÐ¸ Ð¸ ÑÑÐµÐ¿ÐµÐ½Ð¸ ÑÐ¸ÑÐºÑÐ»ÑÑÐ½Ð¾Ð¹ Ð¿Ð¾Ð»ÑÑÐ¸Ð·Ð°ÑÐ¸Ð¸ ÑÐ¾ÑÐ¾Ð»ÑÐ¼Ð¸Ð½ÐµÑÑÐµÐ½ÑÐ¸Ð¸ Ð¾Ð±ÑÐ°Ð·ÑÐ°. Ð ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ ÑÐ°Ð±Ð¾ÑÑ Ð±ÑÐ»Ð¾ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð¾ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ðµ Ð¿ÑÐ¾Ð´Ð¾Ð»ÑÐ½Ð¾Ð³Ð¾ Ð¸ Ð¿Ð¾Ð¿ÐµÑÐµÑÐ½Ð¾Ð³Ð¾ g â ÑÐ°ÐºÑÐ¾ÑÐ°, Ð¸ ÑÐ´ÐµÐ»Ð°Ð½ Ð²ÑÐ²Ð¾Ð´: Ð¿Ð¾Ð²ÐµÐ´ÐµÐ½Ð¸Ðµ Ð¿Ð¾Ð»ÑÑÐ¸Ð·Ð°ÑÐ¸Ð¸ Ð² Ð½Ð°ÐºÐ»Ð¾Ð½Ð½Ð¾Ð¼ Ð¼Ð°Ð³Ð½Ð¸ÑÐ½Ð¾Ð¼ Ð¿Ð¾Ð»Ðµ ÑÐ²Ð¸Ð´ÐµÑÐµÐ»ÑÑÑÐ²ÑÐµÑ Ð¾ ÑÐ¾Ð¼, ÑÑÐ¾ Ð¸Ð¼ÐµÐµÑ Ð¼ÐµÑÑÐ¾ ÑÐ¿Ð¸Ð½Ð¾Ð²Ð°Ñ Ð¿ÑÐµÑÐµÑÑÐ¸Ñ ÑÐ°ÑÑÐ¸ÑÑ Ñ Ð°Ð½Ð¸Ð·Ð¾ÑÑÐ¾Ð¿Ð½ÑÐ¼ g â ÑÐ°ÐºÑÐ¾ÑÐ¾Ð¼, Ñ.Ðµ. ÑÑÐ¶ÐµÐ»Ð¾Ð¹ Ð´ÑÑÐºÐ¸. Ð ÐµÐ·ÑÐ»ÑÑÐ°ÑÑ Ð¸ Ð²ÑÐ²Ð¾Ð´Ñ, Ð¿ÑÐ¸Ð²ÐµÐ´ÐµÐ½Ð½ÑÐµ Ð² ÑÐ°Ð±Ð¾ÑÐµ, Ð¼Ð¾Ð³ÑÑ Ð±ÑÑÑ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ñ ÐºÐ°Ðº Ð´Ð»Ñ Ð´Ð°Ð»ÑÐ½ÐµÐ¹ÑÐµÐ³Ð¾ Ð¸Ð·ÑÑÐµÐ½Ð¸Ñ ÑÐ¿Ð¸Ð½-Ð·Ð°Ð²Ð¸ÑÐ¸Ð¼ÑÑ ÑÐ²Ð»ÐµÐ½Ð¸Ð¹ Ð² Ð½Ð¸Ð·ÐºÐ¾ÑÐ°Ð·Ð¼ÐµÑÐ½ÑÑ ÑÑÑÑÐºÑÑÑÐ°Ñ, ÑÐ°Ðº Ð¸ Ð´Ð»Ñ ÑÐ¾Ð·Ð´Ð°Ð½Ð¸Ñ ÑÑÑÑÐ¾Ð¹ÑÑÐ², Ð¸ÑÐ¿Ð¾Ð»ÑÐ·ÑÑÑÐ¸Ñ ÑÐ¿Ð¸Ð½ Ð² ÐºÐ°ÑÐµÑÑÐ²Ðµ Ð¾Ð±ÑÐ°Ð±Ð¾ÑÐºÐ¸ Ð¸ Ð¿ÐµÑÐµÐ´Ð°ÑÐ¸ Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¸.
description: The given work is devoted to study the depolarization of photoluminescence in a tilted magnetic field (the Hanle effect) in indirect-gap quantum dots (In,Al)As/AlAs. The relevance in the research of quantum dots lies in the fact that they are of great interest as objects with long lifetimes of electron and hole spins, which characterizes them as promising information carriers for being used in quantum computing. The self-assembled (In,Al)As quantum dots, which are considered in the paper are in an AlAs matrix and were grown on a GaAs substrate, and placed in a magnetic field, the angle between the direction of the magnetic field and the laser beam varied in the range from 87 to 92 degrees. In the course of the experiment, the dependences of the degree of circular polarization of luminescence on the magnetic field for various values of the angle between the direction of the magnetic field and the laser beam, the half-width of depolarization curve on the angle, the circular polarization within large fields on the angle, the spectrum of the photoluminescence intensity, and the degree of circular polarization of the sample were plotted. As a result of the work, the value of the longitudinal and transverse g â factor was obtained. The experiment has shown: the fact of existence of behavior of polarization in a tilted magnetic field indicates presents of a spin precession of a particle with an anisotropic g â factor, i.e. heavy hole. The results of the research presented in the paper can be used both for further study of spin-dependent phenomena in low-dimensional structures and for developing devices, they use of which is based of spin as information processing and transmission.