Eur. Phys. J. Plus (2017) 132: 279
https://doi.org/10.1140/epjp/i2017-11542-5

Regular Article

Effect of magnetic field on spin-dependent hole transport through a type-I Cd_1-xMn_xTe/CdTe double barrier heterostrucutre

¹ Department of Physics, The American College, 625002, Madurai, India
² Department of Physics, Alagappa Arts College, 630003, Karakudi, India
³ Department of Physics, Sree Sevugan-Annamalai College, 630303, Devakottai, India

^* e-mail: chandrasekar.bruno@gmail.com

Received: 20 February 2017
Accepted: 10 May 2017
Published online: 26 June 2017

Abstract

We study the effect of the magnetic field on the spin-dependent hole transport through a diluted magnetic semiconductor double barrier heterostrucutre such as Cd_1-x Mn _x Te/CdTe. Using the transfer matrix, the barrier transparency, polarization efficiency and tunneling lifetime of a light hole and a heavy hole are calculated. The spin separation is found out and is observed that it is the same for both the light and the heavy hole. The heavy hole takes more time to travel in the heterostrucutre than the light hole. The effect of the magnetic field influences the tunneling lifetime. The results give the basic idea about the spin-dependent transport of light and heavy holes.