Work

Study of Defects in Croconic Acid Single Crystals Using Positron Annihilation Lifetime Spectroscopy

Year: 2017

Type: article

Abstract: Croconic acid is the first single molecular organic ferroelectric material exhibiting very high spontaneous polarization (~ 20 μC/cm2) at room temperature. Maximizing polarization depends on minimizing void defects in croconic acid crystals. In this experiment, the change in void defects upon the thermal treatment is characterized using positron annihilation lifetime spectroscopy. Both defect void size and intensity are measured, and their dependence upon the thermal treatment duration is studied. In addition, the relation between the void defect and ferroelectric hysteresis of croconic acid is established.

Source: Defect and diffusion forum/Diffusion and defect data, solid state data. Part A, Defect and diffusion forum

DOI: 10.4028/www.scientific.net/ddf.373.179

Authors: Francisco Guzman, Judy Tran, Kimberley Cousins, Paul K. Dixon, Douglas Smith, Timothy D. Usher, Ren Wu Zhang

Institution: California State University, San Bernardino

Language: English

Topic: Muon and positron interactions and applications

Subfield: Mechanics of Materials

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Funders: National Science Foundation, Core Research for Evolutional Science and Technology

OpenAlex ID: W2603544881

FWCI: 0.197

Cites: 5

Cited by: 3

Related to: 10