Electric tuning of ferromagnetic resonances in hexagonal-barium-ferrite/ barium-strontium-titanate heterostructures

Young Yeal Song; Jaydip Das; Pavol Krivosik; Hyung Kee Seo; Mingzhong Wu

doi:10.1109/LMAG.2010.2056357

Electric tuning of ferromagnetic resonances in hexagonal-barium-ferrite/ barium-strontium-titanate heterostructures

Young Yeal Song
, Jaydip Das
, Pavol Krivosik
, Hyung Kee Seo
, Mingzhong Wu^*

^*Corresponding author for this work

Division of Chemical Engineering

Colorado State University
Slovak University of Technology in Bratislava

Research output: Contribution to journal › Journal article › peer-review

5 Scopus citations

Abstract

This letter reports the first demonstration of a monolithic heterostructure with a large electric tuning of the ferromagnetic resonance (FMR) at millimeter-wave frequencies. The structure is composed of a barium-strontium- titanate (BST) film and two thin platinum electrodes, all grown on a barium ferrite slab with in-plane uniaxial anisotropy. The electric tuning of the FMR responses around 60 GHz was obtained for bias voltages across the BST layer in the 0-30 V range. The average tuning rate was 1.1 MHz/V. The highest incremental response was 2.1 MHz/V. These rates are significantly higher than the previously reported values for nonmonolithic structures.

Original language	English
Article number	5545735
Journal	IEEE Magnetics Letters
Volume	1
DOIs	https://doi.org/10.1109/LMAG.2010.2056357
State	Published - 2010

Keywords

barium strontium titanate
ferromagnetic resonance
heterostructures
hexagonal ferrite
Magneto-electronics
millimeter wave
multiferroics

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10.1109/LMAG.2010.2056357

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title = "Electric tuning of ferromagnetic resonances in hexagonal-barium-ferrite/ barium-strontium-titanate heterostructures",

abstract = "This letter reports the first demonstration of a monolithic heterostructure with a large electric tuning of the ferromagnetic resonance (FMR) at millimeter-wave frequencies. The structure is composed of a barium-strontium- titanate (BST) film and two thin platinum electrodes, all grown on a barium ferrite slab with in-plane uniaxial anisotropy. The electric tuning of the FMR responses around 60 GHz was obtained for bias voltages across the BST layer in the 0-30 V range. The average tuning rate was 1.1 MHz/V. The highest incremental response was 2.1 MHz/V. These rates are significantly higher than the previously reported values for nonmonolithic structures.",

keywords = "barium strontium titanate, ferromagnetic resonance, heterostructures, hexagonal ferrite, Magneto-electronics, millimeter wave, multiferroics",

author = "Song, \{Young Yeal\} and Jaydip Das and Pavol Krivosik and Seo, \{Hyung Kee\} and Mingzhong Wu",

year = "2010",

doi = "10.1109/LMAG.2010.2056357",

language = "English",

volume = "1",

journal = "IEEE Magnetics Letters",

issn = "1949-307X",

}

TY - JOUR

T1 - Electric tuning of ferromagnetic resonances in hexagonal-barium-ferrite/ barium-strontium-titanate heterostructures

AU - Song, Young Yeal

AU - Das, Jaydip

AU - Krivosik, Pavol

AU - Seo, Hyung Kee

AU - Wu, Mingzhong

PY - 2010

Y1 - 2010

N2 - This letter reports the first demonstration of a monolithic heterostructure with a large electric tuning of the ferromagnetic resonance (FMR) at millimeter-wave frequencies. The structure is composed of a barium-strontium- titanate (BST) film and two thin platinum electrodes, all grown on a barium ferrite slab with in-plane uniaxial anisotropy. The electric tuning of the FMR responses around 60 GHz was obtained for bias voltages across the BST layer in the 0-30 V range. The average tuning rate was 1.1 MHz/V. The highest incremental response was 2.1 MHz/V. These rates are significantly higher than the previously reported values for nonmonolithic structures.

AB - This letter reports the first demonstration of a monolithic heterostructure with a large electric tuning of the ferromagnetic resonance (FMR) at millimeter-wave frequencies. The structure is composed of a barium-strontium- titanate (BST) film and two thin platinum electrodes, all grown on a barium ferrite slab with in-plane uniaxial anisotropy. The electric tuning of the FMR responses around 60 GHz was obtained for bias voltages across the BST layer in the 0-30 V range. The average tuning rate was 1.1 MHz/V. The highest incremental response was 2.1 MHz/V. These rates are significantly higher than the previously reported values for nonmonolithic structures.

KW - barium strontium titanate

KW - ferromagnetic resonance

KW - heterostructures

KW - hexagonal ferrite

KW - Magneto-electronics

KW - millimeter wave

KW - multiferroics

UR - https://www.scopus.com/pages/publications/78650335305

U2 - 10.1109/LMAG.2010.2056357

DO - 10.1109/LMAG.2010.2056357

M3 - Journal article

AN - SCOPUS:78650335305

SN - 1949-307X

VL - 1

JO - IEEE Magnetics Letters

JF - IEEE Magnetics Letters

M1 - 5545735

ER -

Electric tuning of ferromagnetic resonances in hexagonal-barium-ferrite/ barium-strontium-titanate heterostructures

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Keywords

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