Strontium Titanate Perovskite SrTiO3 as a Promising Ideal Material for MEMS Applications: First-principles FP-LMTO + LSDA Study

M. Saad

View/Download PDF

Buy Reprints

PDF

Translate this page into:

Research Article

7 (

); 01-12

Strontium Titanate Perovskite SrTiO3 as a Promising Ideal Material for MEMS Applications: First-principles FP-LMTO + LSDA Study

M. Saad

Received: 2020-02-25, Accepted: 2020-02-25, Published: 2014-01-01

Licence

This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-Share Alike 4.0 License, which allows others to remix, transform, and build upon the work non-commercially, as long as the author is credited and the new creations are licensed under the identical terms.

Disclaimer:
This article was originally published by Qassim University and was migrated to Scientific Scholar after the change of Publisher.

Abstract

Strontium titanate perovskite oxide materials offer a number of advantages in micro-electromechanical systems (MEMS) due to the micro-structural, electronic, magnetic and mechanical properties. In this paper, we report theoretical study on structural, electronic, magnetic and mechanical properties of strontium titanate perovskite oxide SrTiO3. This material selected as energetic substrate primarily for its dimensional stability that is relatively insensitive to environment conditions. The calculations performed using the first-principles full-potential linear muffin-tin orbital (FP-LMTO) method, under the local spin density approximation (LSDA) and plus the on-site Coulomb interaction (LSDA+U) scheme. The analysis of densities of states, exchange interactions and magnetic moments reveals that SrTiO3 exhibits a semiconductor character with an energy gap of Eg = 2.68 eV, in excellent agreement with the previous experimental results.