Beating Analysis of Shubnikov de Haas Oscillation in In0.53Ga0.47As Double Quantum Well toward Spin Filter Applications
نویسندگان
چکیده
We recently determined the values of intrinsic spin-orbit (SO) parameters for In0.52Al0.48As/In0.53Ga0.47As(10 nm)/In0.52Al0.48As (InGaAs/InAlAs) quantum wells (QW), lattice-matched to (001) InP, from the weak localization/antilocalization analysis of the low-temperature magneto-conductivity measurements [1]. We have then studied the subband energy spectra for the InGaAs/InAlAs double QW system from beatings in the Shubnikov de Haas (SdH) oscillations. The basic properties obtained here for the double QW system provides useful information for realizing nonmagnetic spin-filter devices based on the spin-orbit interaction [2]. key words: quantum well, spin-orbit interaction, Shubnikov de Haas oscillation, Rashba effect, spin filter
منابع مشابه
Beating Analysis of Shubnikov de Haas Oscillation in Ino;s3Gao.47As Double Quantum Well toward Spin Filter Applications
SUMMARY We recently determined the values of intrinsic spin-orbit (SO) parameters for Ino.s2Alo.48As(In0.53Ga0.47As(lO nm)(Ino.s2Alo.48AS (InGaAs(InAlAs) quantum wells (QW), lattice-matched to (00l) InP, from the weak localizationjantilocalization analysis of the low-temperature magneto-conductivity measurements [1]. We have then studied the sub-band energy spectra for the InGaAs(InAlAs double ...
متن کاملShubnikov-de Haas oscillations in high mobility GaAs quantum wells in tilted magnetic fields
We report on quantum magneto-oscillations in a high mobility GaAs/AlGaAs quantum well at very high (≥ 87◦) tilt angles. Unlike previous studies, we find that the spin and cyclotron splittings become equal over a continuous range of angles, but only near certain, angle-dependent filling factors. At high enough tilt angles, Shubnikov-de Haas oscillations reveal a prominent beating pattern, indica...
متن کاملMagnetospectroscopy of symmetric and anti-symmetric states in double quantum wells
The experimental results obtained for the magneto-transport in the InGaAs/InAlAs double quantum wells (DQW) structures of two different shapes of wells are reported. The beating-effect occurred in the Shubnikov-de Haas (SdH) oscillations was observed for both types of the structures at low temperatures in the parallel transport when magnetic field was perpendicular to the layers. An approach to...
متن کاملLarge modulation of the Shubnikov–de Haas oscillations by the Rashba interaction at the LaAlO3/SrTiO3 interface
We investigate the two-dimensional Fermi surface of high-mobility LaAlO3/ SrTiO3 interfaces using Shubnikov-de Haas oscillations. Our analysis of the oscillation pattern underscores the key role played by the Rashba spin–orbit interaction brought about by the breaking of inversion symmetry, as well as the dominant contribution of the heavy dxz/dyz orbitals on electrical transport. We furthermor...
متن کاملTHE MASS OF THE ELECTRON IN GaAs/AlGaAs BY SHUBNIKOV-DE HAAS EFFECT AND THE SPIN-CHARGE LOCKING
The energy of the free electron gas is calculated in three dimensions. In this calculation an integral over the wave vector space occurs which was solved by Dingle. In the low temperature approximation the integral over the Fermi distribution leads to x/sinh x type expression, called the Dingle’s formula. The spin symmetry is found to modify this formula which determines the oscillation amplitu...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- IEICE Transactions
دوره 95-C شماره
صفحات -
تاریخ انتشار 2012