Dynamic tuning of dielectric permittivity in BaTiO3 via electrical biasing

8Citations
Citations of this article
14Readers
Mendeley users who have this article in their library.

This article is free to access.

Abstract

Dynamic tuning of optical properties is technologically important for the development of future integrated electronic and photonic devices. Here, we demonstrate the electrically tunable permittivity in optical frequency in epitaxial BaTiO3 (BTO) thin films using spectroscopic ellipsometer measurements under DC bias condition. The lattice tetragonal distortion and domain switching of biased BTO is evident based on the increased anisotropy in permittivity in-plane and out-of-plane. Specifically, out-of-plane permittivity, arising from the c-domains, shows a continuous decrease with the applied voltage, relative to the in-plane permittivity, arising from the a-domains. The dielectric constant can also be reversibly adjusted through electric-reset cycles.

Cite

CITATION STYLE

APA

Misra, S., Kalaswad, M., Zhang, D., & Wang, H. (2020). Dynamic tuning of dielectric permittivity in BaTiO3 via electrical biasing. Materials Research Letters, 8(9), 321–327. https://doi.org/10.1080/21663831.2020.1757527

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free