A theoretical insight into an isentropic strategy for enhancing magnetoelectric coupling of organic multiferroics. Issue 30 (20th July 2018)

• Record Type: Journal Article
• Authors: Ding, L. J.; Zhong, Y.
• Is Part Of: Physical chemistry chemical physics. Volume 20:Issue 30(2018)
• Page Start: 20228
• Page End: 20234
• Publication Date: 2018-07-20
• Subjects: Chemistry, Physical and theoretical -- Periodicals; 541.3
• DOI: 10.1039/c8cp03534b
• Languages: English
• ISSNs: 1463-9076

Abstract

Abstract : The isentropic magnetoelectric coupling is dramatically enhanced within a temperature mediated mechanism and moderate fields around room-temperature. Abstract : The cross-coupling between magnetic and ferroelectric orders in spin-driven organic multiferroics provides great potential for realizing multi-state logic memory. Creating strong magnetoelectric coupling around room-temperature is the key to eliminate the main roadblock for practical application. Herein, quantum correlation controlled means are employed to tune the transition temperature T C = 300 K, as the optimal operating temperature. After that, based on the magnetocaloric or electrocaloric effect, a temperature mediated mechanism is proposed to enhance magnetoelectric coupling within an isentropic rather than an isothermal process. Furthermore, a moderate magnetic field combined with a relatively weak electric field can jointly control and dramatically enhance the isentropic magnetoelectric coupling around room-temperature.