title: ÐÐ·Ð¼ÐµÑÐµÐ½Ð¸Ðµ Ð²ÑÐµÐ¼ÐµÐ½Ð¸ Ð¶Ð¸Ð·Ð½Ð¸ ÑÐºÑÐ¸ÑÐ¾Ð½Ð° Ð² Ð´Ð²Ð¾Ð¹Ð½Ð¾Ð¹ Ð¿Ð¾Ð»ÑÐ¼Ð°Ð³Ð½Ð¸ÑÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð½ÑÐ¾Ð²Ð¾Ð¹ ÑÐ¼Ðµ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð¼Ð°Ð³Ð½Ð¸ÑÐ¾Ð¾Ð¿ÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÑÑÐµÐºÑÐ° ÐÐµÑÑÐ°
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Measurement of the exciton lifetimeÂ in a double semi-magnetic quantum well using the magneto-optical Kerr effect
Creators: name: ÐÐµÐ¹ÑÐ°Ð´Ð·Ðµ, ÐÐµÑÐ¼Ð°Ð½
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: 2024
Subjects: ÑÑÐ½Ð½ÐµÐ»ÑÐ½Ð¾-ÑÐ²ÑÐ·Ð°Ð½Ð½ÑÐµ ÐºÐ²Ð°Ð½ÑÐ¾Ð²ÑÐµ ÑÐ¼Ñ
ÑÐ°Ð´Ð¸Ð°Ð¸Ð¾Ð½Ð½Ð¾Ðµ Ð¸ Ð½ÐµÑÐ°Ð´Ð¸Ð°Ð¸Ð¾Ð½Ð½Ð¾Ðµ Ð²ÑÐµÐ¼Ñ Ð¶Ð¸Ð·Ð½Ð¸ ÑÐºÑÐ¸ÑÐ¾Ð½Ð°
ÑÐ°Ð´Ð¸Ð°Ð¸Ð¾Ð½Ð½Ð¾Ðµ Ð¸ Ð½ÐµÑÐ°Ð´Ð¸Ð°Ð¸Ð¾Ð½Ð½Ð¾Ðµ ÑÑÐ¸ÑÐ¸ÐµÐ½Ð¸Ðµ ÑÐºÑÐ¸ÑÐ¾Ð½Ð½Ð¾Ð¹ Ð»Ð¸Ð½Ð¸Ð¸
Ð³Ð¸Ð³Ð°Ð½ÑÑÐºÐ¸Ð¹ ÑÑÑÐµÐºÑ Ð·ÐµÐ¹Ð¼Ð°Ð½Ð°
Ð°Ð¼Ð¿Ð»Ð¸ÑÑÐ´Ð½ÑÐµ ÐºÐ¾ÑÑÑÐ¸ÑÐ¸ÐµÐ½ÑÑ Ð¾ÑÑÐ°Ð¶ÐµÐ½Ð¸Ñ
tunnel-coupled quantum wells
radiionic and non-radiionic exciton lifetime
radiionic and non-radiionic exciton line bloading
giant zeiman effect
amplitude reflection coefficients

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ Ð¼Ð°Ð³Ð½Ð¸ÑÐ¾Ð¾Ð¿ÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÑÑÐµÐºÑÐ° ÐÐµÑÑÐ° Ð±ÑÐ»Ð¸ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ñ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ¿ÐµÐºÑÑÐ° Ð¾ÑÑÐ°Ð¶ÐµÐ½Ð¸Ñ ÑÐºÑÐ¸ÑÐ¾Ð½Ð½Ð¾Ð¹ Ð»Ð¸Ð½Ð¸Ð¸ Ð² Ð¿Ð¾Ð»ÑÐ¼Ð°Ð³Ð½Ð¸ÑÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð½ÑÐ¾Ð²Ð¾Ð¹ ÑÐ¼Ðµ Cd0.984Mn0.016Te, ÑÑÐ½Ð½ÐµÐ»ÑÐ½Ð¾-ÑÐ²ÑÐ·Ð°Ð½Ð½Ð¾Ð¹ Ñ ÑÐ¸ÑÐ¾ÐºÐ¾Ð¹ ÐºÐ²Ð°Ð½ÑÐ¾Ð²Ð¾Ð¹ ÑÐ¼Ð¾Ð¹ CdTe. ÐÐ·Ð¼ÐµÑÑÐµÐ¼ÑÐ¹ Ð¾Ð±ÑÐ°Ð·ÐµÑ Ð½Ð°ÑÐ¾Ð´Ð¸Ð»ÑÑ Ð² ÐºÑÐ¸Ð¾ÑÑÐ°ÑÐµ Ð·Ð°Ð¼ÐºÐ½ÑÑÐ¾Ð³Ð¾ ÑÐ¸ÐºÐ»Ð° Ð¿ÑÐ¸ ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÐµ T = 6K. ÐÐ° Ð¾Ð±ÑÐ°Ð·ÐµÑ Ð´ÐµÐ¹ÑÑÐ²Ð¾Ð²Ð°Ð»Ð¾ ÑÐ»Ð°Ð±Ð¾Ðµ Ð¿ÐµÑÐµÐ¼ÐµÐ½Ð½Ð¾Ðµ Ð¼Ð°Ð³Ð½Ð¸ÑÐ½Ð¾Ð¼ Ð¿Ð¾Ð»Ðµ B = 1 ÐÑ, Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð½Ð¾Ðµ Ð²Ð´Ð¾Ð»Ñ Ð¾ÑÐ¸ ÑÐ¾ÑÑÐ° ÑÑÑÑÐºÑÑÑÑ (Ð³ÐµÐ¾Ð¼ÐµÑÑÐ¸Ñ Ð¤Ð°ÑÐ°Ð´ÐµÑ). ÐÐ»Ñ ÑÐ¾Ð·Ð´Ð°Ð½Ð¸Ñ Ð»Ð¸Ð½ÐµÐ¹Ð½Ð¾ Ð¿Ð¾Ð»ÑÑÐ¸Ð·Ð¾Ð²Ð°Ð½Ð½Ð¾Ð³Ð¾ Ð»ÑÑÐ° Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð»ÑÑ ÑÐ¸ÑÐ°Ð½-ÑÐ°Ð¿ÑÐ¸ÑÐ¾Ð²ÑÐ¹ Ð»Ð°Ð·ÐµÑ Ñ Ð¿ÐµÑÐµÑÑÑÐ°Ð¸Ð²Ð°ÐµÐ¼Ð¾Ð¹ Ð´Ð»Ð¸Ð½Ð¾Ð¹ Ð²Ð¾Ð»Ð½Ñ. ÐÑÐ¸ Ð¾ÑÑÐ°Ð¶ÐµÐ½Ð¸Ð¸ Ð»Ð¸Ð½ÐµÐ¹Ð½Ð¾Ð³Ð¾ Ð¿Ð¾Ð»ÑÑÐ¸Ð·Ð¾Ð²Ð°Ð½Ð½Ð¾Ð³Ð¾ Ð»ÑÑÐ° Ð¾Ñ Ð¾Ð±ÑÐ°Ð·ÑÐ° ÐµÐ³Ð¾ Ð¿Ð»Ð¾ÑÐºÐ¾ÑÑÑ Ð¿Ð¾Ð»ÑÑÐ¸Ð·Ð°ÑÐ¸Ð¸ Ð¿Ð¾Ð²Ð¾ÑÐ°ÑÐ¸Ð²Ð°Ð»Ð°ÑÑ Ð½Ð° ÑÐ³Ð¾Ð» ÐÐµÑÑÐ°. Ð­ÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½Ð¾ Ð±ÑÐ»Ð° Ð¿Ð¾Ð»ÑÑÐµÐ½Ð° ÑÐ¿ÐµÐºÑÑÐ°Ð»ÑÐ½Ð°Ñ Ð·Ð°Ð²Ð¸ÑÐ¸Ð¼Ð¾ÑÑÑ ÑÐ³Ð»Ð° ÐÐµÑÑÐ°. Ð£ÑÑÐ°Ð½Ð¾Ð²Ð»ÐµÐ½Ð¾, ÑÑÐ¾ ÑÐ¸ÑÐ¸Ð½Ð° ÑÑÐ¾Ð³Ð¾ ÑÐ¿ÐµÐºÑÑÐ° Ð·Ð°Ð²Ð¸ÑÐ¸Ñ Ð¾Ñ ÑÐ°Ð´Ð¸Ð°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð³Ð¾ Ð¸ Ð½ÐµÑÐ°Ð´Ð¸Ð°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð³Ð¾ ÑÑÐ¸ÑÐµÐ½Ð¸Ñ ÑÐºÑÐ¸ÑÐ¾Ð½Ð½Ð¾Ð³Ð¾ ÑÐµÐ·Ð¾Ð½Ð°Ð½ÑÐ° Ð² Ð¿Ð¾Ð»ÑÐ¼Ð°Ð³Ð½Ð¸ÑÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð½ÑÐ¾Ð²Ð¾Ð¹ ÑÐ¼Ðµ Cd0.984Mn0.016Te. ÐÐ°Ð½Ð½ÑÐµ Ð¸Ð·Ð¼ÐµÑÐµÐ½Ð¸Ð¹ Ð¿Ð¾Ð·Ð²Ð¾Ð»Ð¸Ð»Ð¸ Ð¾Ð¿ÑÐµÐ´ÐµÐ»Ð¸ÑÑ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ñ ÑÐ°Ð´Ð¸Ð°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð³Ð¾ Ð¸ Ð½ÐµÑÐ°Ð´Ð¸Ð°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð³Ð¾ Ð²ÑÐµÐ¼ÐµÐ½ Ð¶Ð¸Ð·Ð½Ð¸ ÑÐºÑÐ¸ÑÐ¾Ð½Ð° Ð² Ð¿Ð¾Ð»ÑÐ¼Ð°Ð³Ð½Ð¸ÑÐ½Ð¾Ð¹ ÑÐ¼Ðµ Ð¸ ÑÑÑÐ°Ð½Ð¾Ð²Ð¸ÑÑ, ÑÑÐ¾ Ð½Ð¾ÑÐ¸ÑÐµÐ»Ð¸ Ð·Ð°ÑÑÐ´Ð°, ÑÐ¾ÑÐ¾Ð²Ð¾Ð·Ð±ÑÐ¶Ð´ÐµÐ½Ð½ÑÐµ Ð² Ð¿Ð¾Ð»ÑÐ¼Ð°Ð³Ð½Ð¸ÑÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð½ÑÐ¾Ð²Ð¾Ð¹ ÑÐ¼Ðµ, ÑÑÐ½Ð½ÐµÐ»Ð¸ÑÑÑÑ Ð² ÑÐ¸ÑÐ¾ÐºÑÑ ÐºÐ²Ð°Ð½ÑÐ¾Ð²ÑÑ ÑÐ¼Ñ Ð±ÐµÐ· Ð¸Ð·Ð»ÑÑÐµÐ½Ð¸Ñ Ñ Ð²ÑÐµÐ¼ÐµÐ½ÐµÐ¼ Ð¿Ð¾ÑÑÐ´ÐºÐ° 0.1 Ð¿Ñ.
description: In this work, using the magneto-optical Kerr effect, we studied the reflection spectrum of an exciton line in a semi-magnetic Cd0.984Mn0.016Te quantum well, tunnel-connected to a wide CdTe quantum well. The sample being measured was in a closed-cycle cryostat at a temperature T = 6K. The sample was exposed to a weak alternating magnetic field B = 1 G, directed along the structure growth axis (Faraday geometry). A titanium-sapphire laser with a tunable wavelength was used to create a linearly polarized beam. When a linear polarized beam was reflected from the sample, its plane of polarization was rotated by the Kerr angle. The spectral dependence of the Kerr angle was experimentally obtained. It has been established that the width of this spectrum depends on the radiative and non-radiative broadening of the exciton resonance in the Cd0.984Mn0.016Te semi-magnetic quantum well. The measurement data made it possible to determine the radiative and non-radiative lifetimes of an exciton in a semi-magnetic well and to establish that charge carriers photoexcited in a semi-magnetic quantum well tunnel into a wide quantum well without radiation with a time of the order of 0.1 ps.