Exploring the Magnetoelectric Coupling at the Composite Interfaces of FE/FM/FE Heterostructures

Dhiren K. Pradhan*, Shalini Kumari, Rama K. Vasudevan, Evgheni Strelcov, Venkata S. Puli, Dillip K. Pradhan, Ashok Kumar, J. Marty Gregg, A. K. Pradhan, Sergei V. Kalinin, Ram S. Katiyar

*Corresponding author for this work

Research output: Contribution to journalArticle

8 Citations (Scopus)
153 Downloads (Pure)

Abstract

Multiferroic materials have attracted considerable attention as possible candidates for a wide variety of future microelectronic and memory devices, although robust magnetoelectric (ME) coupling between electric and magnetic orders at room temperature still remains difficult to achieve. In order to obtain robust ME coupling at room temperature, we studied the Pb(Fe0.5Nb0.5)O3/Ni0.65Zn0.35Fe2O4/Pb(Fe0.5Nb0.5)O3 (PFN/NZFO/PFN) trilayer structure as a representative FE/FM/FE system. We report the ferroelectric, magnetic and ME properties of PFN/NZFO/PFN trilayer nanoscale heterostructure having dimensions 70/20/70 nm, at room temperature. The presence of only (00l) reflection of PFN and NZFO in the X-ray diffraction (XRD) patterns and electron diffraction patterns in Transmission Electron Microscopy (TEM) confirm the epitaxial growth of multilayer heterostructure. The distribution of the ferroelectric loop area in a wide area has been studied, suggesting that spatial variability of ferroelectric switching behavior is low, and film growth is of high quality. The ferroelectric and magnetic phase transitions of these heterostructures have been found at ~575 K and ~650 K, respectively which are well above room temperature. These nanostructures exhibit low loss tangent, large saturation polarization (Ps ~ 38 µC/cm2) and magnetization (Ms ~ 48 emu/cm3) with strong ME coupling at room temperature revealing them as potential candidates for nanoscale multifunctional and spintronics device applications.

Original languageEnglish
Article number17381
Pages (from-to)1-11
JournalScientific Reports
Volume8
Issue number1
Early online date26 Nov 2018
DOIs
Publication statusPublished - 01 Dec 2018

ASJC Scopus subject areas

  • General

Fingerprint Dive into the research topics of 'Exploring the Magnetoelectric Coupling at the Composite Interfaces of FE/FM/FE Heterostructures'. Together they form a unique fingerprint.

  • Cite this

    Pradhan, D. K., Kumari, S., Vasudevan, R. K., Strelcov, E., Puli, V. S., Pradhan, D. K., Kumar, A., Gregg, J. M., Pradhan, A. K., Kalinin, S. V., & Katiyar, R. S. (2018). Exploring the Magnetoelectric Coupling at the Composite Interfaces of FE/FM/FE Heterostructures. Scientific Reports, 8(1), 1-11. [17381]. https://doi.org/10.1038/s41598-018-35648-1