title: ÐÐ»Ð¸ÑÐ½Ð¸Ðµ Ð¿Ð¾Ð´ÑÐ²ÐµÑÐºÐ¸ Ð½Ð° ÑÐ¿Ð¸Ð½Ð¾Ð²ÑÑ Ð´Ð¸Ð½Ð°Ð¼Ð¸ÐºÑ Ð² Ð¿Ð¾Ð»ÑÐ¼Ð°Ð³Ð½Ð¸ÑÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð½ÑÐ¾Ð²Ð¾Ð¹ ÑÐ¼Ðµ CdMnTe/CdMgTe
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: Effect of illumination on spin dynamics in a semi-magnetic quantum well CdMnTe/CdMgTe
Creators: name: ÐÐµÐ³Ð¾ÐµÐ², ÐÐ°ÐºÑÐ¸Ð¼
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: 2020
Subjects: ÑÑÐ½Ð½ÐµÐ»ÑÐ½Ð¾-ÑÐ²ÑÐ·Ð°Ð½Ð½ÑÐµ Ð¿Ð¾Ð»ÑÐ¼Ð°Ð³Ð½Ð¸ÑÐ½Ð°Ñ Ð¸ Ð½ÐµÐ¼Ð°Ð³Ð½Ð¸ÑÐ½Ð°Ñ ÐºÐ²Ð°Ð½ÑÐ¾Ð²ÑÐµ ÑÐ¼Ñ CdMnTe/CdMgTe Ð¸ CdTe/CdMgTe
Ð¾Ð¿ÑÐ¸ÑÐµÑÐºÐ°Ñ Ð¾ÑÐ¸ÐµÐ½ÑÐ°ÑÐ¸Ñ
ÑÐ¿Ð¸Ð½Ð¾Ð²Ð°Ñ Ð´Ð¸Ð½Ð°Ð¼Ð¸ÐºÐ°
Ð½Ð°ÐºÐ°ÑÐºÐ°-Ð·Ð¾Ð½Ð´Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
tunnel-coupled semimagnetic and non-magnetic quantum wells CdMnTe/CdMgTe and CdTe/CdMgTe
optical orientation
spin dynamics
pump-probe

description: Ð Ð°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð²Ð»Ð¸ÑÐ½Ð¸Ñ Ð¼ÐµÐ¶Ð·Ð¾Ð½Ð½Ð¾Ð¹ Ð½ÐµÑÐµÐ·Ð¾Ð½Ð°Ð½ÑÐ½Ð¾Ð¹ Ð¿Ð¾Ð´ÑÐ²ÐµÑÐºÐ¸, Ð½Ð° ÑÐ¿Ð¸Ð½Ð¾Ð²ÑÑ Ð´Ð¸Ð½Ð°Ð¼Ð¸ÐºÑ Ð² Ð¿Ð¾Ð»ÑÐ¼Ð°Ð³Ð½Ð¸ÑÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð½ÑÐ¾Ð²Ð¾Ð¹ ÑÐ¼Ðµ CdMnTe/CdMgTe, ÑÑÐ½Ð½ÐµÐ»ÑÐ½Ð¾-ÑÐ²ÑÐ·Ð°Ð½Ð½Ð¾Ð¹ Ñ Ð½ÐµÐ¼Ð°Ð³Ð½Ð¸ÑÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð½ÑÐ¾Ð²Ð¾Ð¹ ÑÐ¼Ð¾Ð¹ CdTe/CdMgTe. ÐÐ·Ð¼ÐµÑÑÐµÐ¼ÑÐ¹ Ð¾Ð±ÑÐ°Ð·ÐµÑ Ð½Ð°ÑÐ¾Ð´Ð¸Ð»ÑÑ Ð² Ð¿Ð¾Ð¿ÐµÑÐµÑÐ½Ð¾Ð¼ Ð¼Ð°Ð³Ð½Ð¸ÑÐ½Ð¾Ð¼ Ð¿Ð¾Ð»Ðµ (Ð³ÐµÐ¾Ð¼ÐµÑÑÐ¸Ñ Ð¤Ð¾Ð¹Ð³ÑÐ°). Ð¡Ð¿Ð¸Ð½Ð¾Ð²Ð°Ñ Ð´Ð¸Ð½Ð°Ð¼Ð¸ÐºÐ° ÑÐµÐ³Ð¸ÑÑÑÐ¸ÑÑÐµÑÑÑ Ñ Ð¿Ð¸ÐºÐ¾ÑÐµÐºÑÐ½Ð´Ð½Ð¾Ð¼ ÑÐ°Ð·ÑÐµÑÐµÐ½Ð¸ÐµÐ¼ Ð² ÑÐµÐ¶Ð¸Ð¼Ðµ Ð½Ð°ÐºÐ°ÑÐºÐ°-Ð·Ð¾Ð½Ð´Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸ÐµÑ Ð¿Ð¾Ð¼Ð¾ÑÑÑ ÑÑÑÐµÐºÑÐ° ÐÐµÑÑÐ°, ÑÐ¾ÑÑÐ¾ÑÑÐµÐ³Ð¾ Ð² Ð¿Ð¾Ð²Ð¾ÑÐ¾ÑÐµ Ð¿Ð»Ð¾ÑÐºÐ¾ÑÑÐ¸ Ð»Ð¸Ð½ÐµÐ¹Ð½Ð¾Ð¹ Ð¿Ð¾Ð»ÑÑÐ¸Ð·Ð°ÑÐ¸Ð¸ Ð·Ð¾Ð½Ð´Ð¸ÑÑÑÑÐµÐ³Ð¾ Ð¸Ð¼Ð¿ÑÐ»ÑÑÐ°. ÐÐ»Ñ Ð²Ð¾Ð·Ð±ÑÐ¶Ð´ÐµÐ½Ð¸Ñ ÑÐ¿Ð¸Ð½Ð¾Ð² Ð¸ÑÐ¿Ð¾Ð»ÑÐ·ÑÐµÑÑÑ ÑÐ¸ÑÐ°Ð½-ÑÐ°Ð¿ÑÐ¸ÑÐ¾Ð²ÑÐ¹ (Ti:Sa) Ð»Ð°Ð·ÐµÑ Ñ Ð¿ÐµÑÐµÑÑÑÐ°Ð¸Ð²Ð°ÐµÐ¼Ð¾Ð¹ Ð´Ð»Ð¸Ð½Ð½Ð¾Ð¹ Ð²Ð¾Ð»Ð½Ñ Ð¸ Ð´Ð»Ð¸ÑÐµÐ»ÑÐ½Ð¾ÑÑÑÑ Ð¸Ð¼Ð¿ÑÐ»ÑÑÐ¾Ð² 1.5Ð¿Ñ, ÑÐ»ÐµÐ´ÑÑÑÐ¸Ñ Ñ ÑÐ°ÑÑÐ¾ÑÐ¾Ð¹ 80ÐÐÑ. ÐÐ¾Ð¿Ð¾Ð»Ð½Ð¸ÑÐµÐ»ÑÐ½Ð°Ñ Ð¿Ð¾Ð´ÑÐ²ÐµÑÐºÐ° ÑÑÑÑÐºÑÑÑÑ Ð¾ÑÑÑÐµÑÑÐ²Ð»ÑÐ»Ð°ÑÑ Ð² Ð½ÐµÐ¿ÑÐµÑÑÐ²Ð½Ð¾Ð¼ ÑÐµÐ¶Ð¸Ð¼Ðµ Ð·ÐµÐ»ÐµÐ½ÑÐ¼ Ð»Ð°Ð·ÐµÑÐ¾Ð¼(532Ð½Ð¼). Ð ÑÐ¾Ð´Ðµ Ð¸Ð·Ð¼ÐµÑÐµÐ½Ð¸Ñ ÐÐµÑÑÐ¾Ð²ÑÐºÐ¸Ñ ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð² Ð²ÑÐ°ÑÐµÐ½Ð¸Ñ Ð¿Ð»Ð¾ÑÐºÐ¾ÑÑÐ¸ Ð¿Ð¾Ð»ÑÑÐ¸Ð·Ð°ÑÐ¸Ð¸, Ð¿Ð¾Ð»ÑÑÐµÐ½Ð° Ð²ÑÐµÐ¼ÐµÐ½Ð½Ð°Ñ Ð·Ð°Ð²Ð¸ÑÐ¸Ð¼Ð¾ÑÑÑ, ÐºÐ¾ÑÐ¾ÑÐ°Ñ Ð¸Ð¼ÐµÐµÑ ÑÐ»Ð¾Ð¶Ð½ÑÑ ÑÐ¾ÑÐ¼Ñ (Â«Ð±Ð¾ÑÐºÐ¾Ð¾Ð±ÑÐ°Ð·Ð½Ð¾ÑÑÑÂ»), Ð¼ÐµÐ½ÑÑÑÑÑÑÑ Ñ Ð¸Ð·Ð¼ÐµÐ½ÐµÐ½Ð¸ÐµÐ¼ Ð¼Ð¾ÑÐ½Ð¾ÑÑÐ¸ Ð¿Ð¾Ð´ÑÐ²ÐµÑÐºÐ¸.
description: The work is devoted to the study of the effect, through additional, non-resonant illumination, on the spin dynamics in a CdMnTe / CdMgTe semi-magnetic quantum well (QW) tunnel-coupled to a non-magnetic CdTe / CdMgTe QW. The measured sample was in a transverse magnetic field (Voigt geometry). Spin dynamics are recorded in the pump-probe mode, with ps resolution, using the Kerr effect, which consists in rotating the plane of linear polarization of the probe pulse. To excite spins, a titanium-sapphire (Ti: Sa) laser with a tunable wavelength and a pulse duration of 1.5 ps, following a frequency of 80 MHz, is used. Additional illumination of the structure was carried out in a continuous wave green laser. During the work of measuring the Kerr signal of rotation of the plane of polarization (HF), which forms a complex shape ("barrel-shaped"), which changes with time and with the change in the backlight power.