A Study on the Magneto-optical Properties and Application of Diluted Magnetic Semiconductor Cd1-xMnxTe

Subpicosecond Faraday Effect in Cd1–xMnxTe and Its Application in Magneto-Optical Sampling

208 LLE Review, Volume 99 Introduction Recent technological developments in electronics and optoelectronics have opened prospects for novel devices and digital circuits operating in the subpicosecond temporal regime.1–5 As the operating speed of modern electrical devices increases, the problem of how to properly characterize them becomes progressively more difficult. Independent measurements of...

Optical Properties of Cd1−xMnxTe Crystals near Fundamental Absorption Edge in Transverse Magnetic Fields

A simple and convenient model is proposed to elucidate the optical characteristics of Cd1−xMnxTe crystals using experimental data on light reflection in magnetic field. The model is based on the quasi-oscillator concept accounting both for the exciton and fundamental absorption edge contributions. The energy dependencies of refraction index and absorption coefficient are presented for Mn mole f...

Relaxation of spin-glass magnetization in Cd1-xMnxTe diluted magnetic semiconductors.

Relaxation of thermal-remanent magnetization and isothermal remanent magnetization of spin glass in Cd& „Mn„Te diluted magnetic semiconductors have been studied at different conditions. Magnetization relaxation can be described by a power-law decay, M(t) =Mpt (f & to and to=2 s) with small values of a or a logarithmic decay M(t}=MD(1—a lnt) (t & to and to=2 s). Temperature and applied magnetic-...

Magneto-optical studies of dilute nitrides and II-VI diluted magnetic semiconductor quantum structures

control of the optical properties of nanoparticles by laser fields

در این پایان نامه، درهمتنیدگی بین یک سیستم نقطه کوانتومی دوگانه(مولکول نقطه کوانتومی) و میدان مورد مطالعه قرار گرفته است. از آنتروپی ون نیومن به عنوان ابزاری برای بررسی درهمتنیدگی بین اتم و میدان استفاده شده و تاثیر پارامترهای مختلف، نظیر تونل زنی(که توسط تغییر ولتاژ ایجاد می شود)، شدت میدان و نسبت دو گسیل خودبخودی بر رفتار درجه درهمتنیدگی سیستم بررسی شده اشت.با تغییر هر یک از این پارامترها، در...