Hydrostatic pressure and electric field effect on electronic states in double quantum rings

H. M. Baghramyan; M. G. Barseghyan; C. A. Duque; A. A. Kirakosyan

doi:10.1117/12.923304

25 January 2012 Hydrostatic pressure and electric field effect on electronic states in double quantum rings

H. M. Baghramyan, M. G. Barseghyan, C. A. Duque, A. A. Kirakosyan

Proceedings Volume 8414, Photonics and Micro- and Nano-structured Materials 2011; 84140C (2012) https://doi.org/10.1117/12.923304
Event: Photonics and Micro- and Nano- structured Materials 2011, 2011, Yerevan, Armenia

Abstract

Using the effective mass approximation and the transfer matrix formalism, we have calculated the ground state energy of electron in 0.7 0.3 GaAs/Ga_0.7Al_0.3As concentric double quantum rings under the combined effects of electric field and hydrostatic pressure. The ground state energy dependences on the electric field, hydrostatic pressure and width of outer ring are reported for different values of the thickness of rings. We have found that for low pressure regime (less than P = 8.37 kbar ) the ground state energy decreases slower than for high pressure regime (higher then P = 8.37 kbar ). Additionally, we have found that the effect of hydrostatic pressure on ground state energy mainly depends on the electric field strength and the sizes of quantum ring.

Citation Download Citation

H. M. Baghramyan, M. G. Barseghyan, C. A. Duque, and A. A. Kirakosyan "Hydrostatic pressure and electric field effect on electronic states in double quantum rings", Proc. SPIE 8414, Photonics and Micro- and Nano-structured Materials 2011, 84140C (25 January 2012); https://doi.org/10.1117/12.923304

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available