Multi phonon emission in InAs quantum wells studied with a free electron laser and high pulsed magnetic fields

被引:0
作者
Bradley, IV
Murzyn, P
Murdin, BN [1 ]
Wells, JPR
Clarke, DG
Stradling, RA
Pidgeon, CR
机构
[1] Univ Surrey, Dept Phys, Guildford GU2 7XH, Surrey, England
[2] Heriot Watt Univ, Dept Phys, Edinburgh, Midlothian, Scotland
[3] FOM, Inst Plasmaphys Rijnhuizen, FELIX Free Electron Laser Facil, Edisonbaan 14,POB 1207, NL-3430 BE Nieuwegein, Netherlands
[4] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2BZ, England
关键词
InAs quantum wells; free electron laser; non-radiative decay; magnetic field;
D O I
10.1016/S0022-2313(01)00354-4
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The short pulsed, tunable output from the Dutch free electron laser FELIX. coupled with a 45 T pulsed magnet has been used to measure the non-radiative decay rates between Landau levels in n-type InAs/GaSb quantum wells. The decay rate is 2 ps(-1) when the cyclotron resonance energy, E-CR = E-LO = 30 meV, and only slightly less, 0.8 ps(-1) when E-CR = 2E(LO) when the principal relaxation pathway is the emission of multiple longitudinal optical (LO) phonons, (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:707 / 711
页数:5
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