There has been significant progress on the fundamental science and technological applications of complex oxides and multiferroics. Among complex oxide thin films, barium strontium titanate (BST) has become the material of choice for room-temperature-based voltage-tunable dielectric thin films, due to its large dielectric tunability and low microwave loss at room temperature. BST thin film varactor technology based reconfigurable radio frequency (RF)/microwave components have been demonstrated with the potential to lower the size, weight, and power needs of a future generation of communication and radar systems. Low-power multiferroic devices have also been recently demonstrated. Strong magneto-electric coupling has also been demonstrated in different multiferroic heterostructures, which show giant voltage control of the ferromagnetic resonance frequency of more than two octaves. This manuscript reviews recent advances in the processing, and application development for the complex oxides and multiferroics, with the focus on voltage tunable RF/microwave components. The over-arching goal of this review is to provide a synopsis of the current state-of the-art of complex oxide and multiferroic thin film materials and devices, identify technical issues and technical challenges that need to be overcome for successful insertion of the technology for both military and commercial applications, and provide mitigation strategies to address these technical challenges.
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21 November 2013
Review Article|
November 15 2013
Challenges and opportunities for multi-functional oxide thin films for voltage tunable radio frequency/microwave components
Guru Subramanyam;
Guru Subramanyam
a)
1
Department of Electrical and Computer Engineering, University of Dayton
, Dayton, Ohio 45469, USA
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M. W. Cole;
M. W. Cole
b)
2
U.S. Army Research Laboratory, Weapons and Materials Research Directorate
, Aberdeen Proving Ground, Maryland 21005, USA
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Nian X. Sun;
Nian X. Sun
3
Department of Electrical and Computer Engineering, Northeastern University
, Boston, Massachusetts 02115, USA
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Thottam S. Kalkur;
Thottam S. Kalkur
4
Department of Electrical and Computer Engineering, University of Colorado
, Colorado Springs, Colorado 80918, USA
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Nick M. Sbrockey;
Nick M. Sbrockey
5
Structured Materials Industries, Inc
., Piscataway, New Jersey 08854, USA
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Gary S. Tompa;
Gary S. Tompa
5
Structured Materials Industries, Inc
., Piscataway, New Jersey 08854, USA
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Xiaomei Guo;
Xiaomei Guo
6
Boston Applied Technologies, Inc
., Woburn, Massachusetts 01801, USA
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Chonglin Chen;
Chonglin Chen
7
Department of Physics & Astronomy, University of Texas
, San Antonio, Texas 78249, USA
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S. P. Alpay;
S. P. Alpay
8
Institute of Materials Science and Materials Science and Engineering Program, University of Connecticut
, Storrs, Connecticut 06269, USA
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G. A. Rossetti, Jr.;
G. A. Rossetti, Jr.
8
Institute of Materials Science and Materials Science and Engineering Program, University of Connecticut
, Storrs, Connecticut 06269, USA
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Kaushik Dayal;
Kaushik Dayal
9
Mechanics, Materials and Computing, Civil and Environmental Engineering, Carnegie Mellon University
, Pittsburgh, Pennsylvania 15213, USA
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Long-Qing Chen;
Long-Qing Chen
10
Department of Materials Science and Engineering, Penn State University, University Park
, Pennsylvania 16802, USA
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Darrell G. Schlom
Darrell G. Schlom
11
Department of Materials Science and Engineering
, Cornell University
, Ithaca, New York 14853, USA
12
Kavli Institute at Cornell for Nanoscale Science
, Ithaca, New York 14853, USA
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a)
Electronic mail: [email protected]
b)
Electronic mail: [email protected]
J. Appl. Phys. 114, 191301 (2013)
Article history
Received:
October 31 2012
Accepted:
May 14 2013
Citation
Guru Subramanyam, M. W. Cole, Nian X. Sun, Thottam S. Kalkur, Nick M. Sbrockey, Gary S. Tompa, Xiaomei Guo, Chonglin Chen, S. P. Alpay, G. A. Rossetti, Kaushik Dayal, Long-Qing Chen, Darrell G. Schlom; Challenges and opportunities for multi-functional oxide thin films for voltage tunable radio frequency/microwave components. J. Appl. Phys. 21 November 2013; 114 (19): 191301. https://doi.org/10.1063/1.4827019
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