Format

Send to

Choose Destination
Sci Rep. 2018 Jan 26;8(1):1628. doi: 10.1038/s41598-018-19673-8.

Nanopillars with E-field accessible multi-state (N ≥ 4) magnetization having giant magnetization changes in self-assembled BiFeO3-CoFe2O4/Pb(Mg1/3Nb2/3)-38at%PbTiO3 heterostructures.

Author information

1
Department of Materials Science and Engineering, Virginia Tech, Blacksburg, VA, 24060, USA. xiaotang@vt.edu.
2
INTER Materials LLC, Pulaski, VA, 24301, USA.
3
Department of Materials Science and Engineering, Virginia Tech, Blacksburg, VA, 24060, USA.
4
Ceramic Engineering Department, Corning Inc., Corning, NY, 14831, USA.
5
State Key Laboratory of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 201800, China.
6
Materials and Manufacturing Directorate, Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, Ohio, 45433, USA.

Abstract

We have deposited self-assembled BiFeO3-CoFe2O4 (BFO-CFO) thin films on (100)-oriented SrRuO3-buffered Pb(Mg1/3Nb2/3)0.62Ti0.38O3 (PMN-38PT) single crystal substrates. These heterostructures were used for the study of real-time changes in the magnetization with applied DC electric field (E DC ). With increasing E DC , a giant magnetization change was observed along the out-of-plane (easy) axis. The induced magnetization changes of the CFO nanopillars in the BFO/CFO layer were about ΔM/M rDC  = 93% at E DC  = -3 kv/cm. A giant converse magnetoelectric (CME) coefficient of 1.3 × 10-7 s/m was estimated from the data. By changing E DC , we found multiple(N ≥ 4) unique possible values of a stable magnetization with memory on the removal of the field.

Supplemental Content

Full text links

Icon for Nature Publishing Group Icon for PubMed Central
Loading ...
Support Center