Work

Composition and temperature dependent remanent polarization and coercive field in wurtzite AlScN ferroelectric memory materials

Year: 2024

Type: article

Abstract: We investigate the Sc dependence and thermal sensitivity of Al1−xScxN with the aid of Landau–Devonshire free energy recently proposed for its wurtzite ferroelectric phase. In particular, we calculate compositional and temperature dependences of the remanent polarization and the coercive field. Because the polarization is strong, surface fluctuations of the polarization are expected; we examine the nature of these fluctuations. Strong correlation is expected as the ferroelectric phase gives way to the paraelectric phase.

Source: AIP Advances

DOI: 10.1063/5.0233837

Authors: J. C. Martinez, Subhranu Samanta, Chen Liu, Yao Zhu, Desmond K. Loke

Institutions: Singapore University of Technology and Design, Agency for Science, Technology and Research, Institute of Microelectronics

Language: English

Topic: Ferroelectric and Negative Capacitance Devices

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,350

OpenAlex ID: W4403114554

FWCI:

Cites: 25

Cited by:

Related to: 10