Accession Number:

ADA561501

Title:

Magneto-elastic Tuning of Ferroelectricity Within a Magnetoelectric Nanowire

Descriptive Note:

Journal article

Corporate Author:

DREXEL UNIV PHILADELPHIA PA DEPT OF MATERIALS SCIENCE AND ENGINEERING

Personal Author(s):

• Johnson, Stephanie H.
• Finkel, Peter
• Leaffer, Oren D.
• Nonnenmann, Stephen S.
• Bussmann, Konrad
• Spanier, Jonathan E.

Report Date:

2011-01-01

Pagination or Media Count:

4.0

Abstract:

Nanowires each consisting of a magnetostrictive Co core and a PbZr0.52Ti0.48O3 or BiFeO3 ferroelectric oxide shell exhibit a magnetic field-tunable piezoelectric response and ferroelectric coercivity owing to magneto-elastic coupling through the interfacial core-shell boundary. The observed magneto-elastic tuning of the ferroelectric switching is analyzed using a renormalized Landau-Ginzburg stiffness in which a magnetic field-tunable stress concentration is incorporated. These results provide insight into the design of integrated functional devices and magnetoelectric sensors.

Descriptors:

• *FERROELECTRICITY
• *NANOWIRES
• COERCIVE FORCE
• DETECTORS
• FERROELECTRIC MATERIALS
• INTEGRATED SYSTEMS
• MAGNETIC FIELDS
• MAGNETOSTRICTION
• PHYSICAL PROPERTIES
• PIEZOELECTRIC EFFECT
• REPRINTS
• STRESS CONCENTRATION
• SWITCHING

Subject Categories:

• Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE