Properties of ferroelectric/ferromagnetic thin film heterostructures

Journal Article · Wed May 07 00:00:00 EDT 2014 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4865316· OSTI ID:22273830

Chen, Daming ^[1]; Harward, Ian; Linderman, Katie; Economou, Evangelos; Celinski, Zbigniew ^[1]; Nie, Yan ^[1]

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1. Center for Magnetism and Magnetic Nanostructures, University of Colorado Colorado Springs, 1420 Austin Bluffs Pkwy, Colorado Springs, Colorado 80918 (United States)

Ferroelectric/ferromagnetic thin film heterostructures, SrBi{sub 2}Ta{sub 2}O{sub 9}/BaFe{sub 12}O{sub 19} (SBT/BaM), were grown on platinum-coated Si substrates using metal-organic decomposition. X-ray diffraction patterns confirmed that the heterostructures contain only SBT and BaM phases. The microwave properties of these heterostructures were studied using a broadband ferromagnetic resonance (FMR) spectrometer from 35 to 60 GHz, which allowed us to determine gyromagnetic ratio and effective anisotropy field. The FMR linewidth is as low as140 Oe at 58 GHz. In addition, measurements of the effective permittivity of the heterostructures were carried out as a function of bias electric field. All heterostructures exhibit hysteretic behavior of the effective permittivity. These properties indicate that such heterostructures have potential for application in dual electric and magnetic field tunable resonators, filters, and phase shifters.

• OSTI ID: 22273830
• Journal Information: Journal of Applied Physics, Vol. 115, Issue 17; Conference: 55. annual conference on magnetism and magnetic materials, Atlanta, GA (United States), 14-18 Nov 2010; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BARIUM COMPOUNDS
BISMUTH COMPOUNDS
ELECTRIC FIELDS
FERRITES
FERROELECTRIC MATERIALS
FERROMAGNETIC MATERIALS
FERROMAGNETIC RESONANCE
GHZ RANGE
GYROMAGNETIC RATIO
HETEROJUNCTIONS
MAGNETIC FIELDS
MICROWAVE RADIATION
ORGANOMETALLIC COMPOUNDS
PERMITTIVITY
PHASE SHIFT
SILICON
STRONTIUM COMPOUNDS
TANTALATES
THIN FILMS
X-RAY DIFFRACTION