Electric Control of Exchange Bias Training

Authors

• W. Echtenkamp, University of Nebraska-Lincoln
• Christian Binek, University of Nebraska-LincolnFollow

Document Type

Article

Date of this Version

10-31-2013

Citation

PHYSICAL REVIEW LETTERS 111, 187204 (2013). DOI: 10.1103/PhysRevLett.111.187204

Comments

Copyright (c) 2013 American Physical Society. Used by permission.

Abstract

Voltage-controlled exchange bias training and tunability are introduced. Isothermal voltage pulses are used to reverse the antiferromagnetic order parameter of magnetoelectric Cr₂O₃, and thus continuously tune the exchange bias of an adjacent CoPd film. Voltage-controlled exchange bias training is initialized by tuning the antiferromagnetic interface into a nonequilibrium state incommensurate with the underlying bulk. Interpretation of these hitherto unreported effects contributes to new understanding in electrically controlled magnetism