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Journal Articles

Electrocaloric and pyroelectric properties of barium zirconate titanate

K. Co, H. Khassaf, S. P. Alpay
Journal: Journal of Applied Physics
J. Appl. Phys. 127, 174102 (2020)
https://doi.org/10.1063/5.0003000
Published: May 2020
View articletitled, Electrocaloric and pyroelectric properties of barium zirconate titanate
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Journal Articles

Ferroelectric films on metal substrates: The role of thermal expansion mismatch on dielectric, piezoelectric, and pyroelectric properties

T. A. Patel, K. Co, R. J. Hebert, S. P. Alpay
Journal: Journal of Applied Physics
J. Appl. Phys. 126, 134103 (2019)
https://doi.org/10.1063/1.5116134
Published: October 2019
View articletitled, Ferroelectric films on metal substrates: The role of thermal expansion mismatch on dielectric, piezoelectric, and pyroelectric properties
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Journal Articles

Dielectric properties and resistive switching characteristics of lead zirconate titanate/hafnia heterostructures

Y. Espinal, S. P. Alpay, M. Howard, B. M. Hanrahan
Journal: Journal of Applied Physics
J. Appl. Phys. 124, 064103 (2018)
https://doi.org/10.1063/1.5037999
Published: August 2018
View articletitled, Dielectric properties and resistive switching characteristics of lead zirconate titanate/hafnia heterostructures
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Includes: Supplementary data
Journal Articles

Accounting for the various contributions to pyroelectricity in lead zirconate titanate thin films

B. Hanrahan, Y. Espinal, C. Neville, R. Rudy, M. Rivas, A. Smith, M. T. Kesim, S. P. Alpay
Journal: Journal of Applied Physics
J. Appl. Phys. 123, 124104 (2018)
https://doi.org/10.1063/1.5012984
Published: March 2018
View articletitled, Accounting for the various contributions to pyroelectricity in lead zirconate titanate thin films
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Includes: Supplementary data
Journal Articles

Flexocaloric response of epitaxial ferroelectric films

H. Khassaf, T. Patel, R. J. Hebert, S. P. Alpay
Journal: Journal of Applied Physics
J. Appl. Phys. 123, 024102 (2018)
https://doi.org/10.1063/1.5009121
Published: January 2018
View articletitled, Flexocaloric response of epitaxial ferroelectric films
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Journal Articles

Combined intrinsic elastocaloric and electrocaloric properties of ferroelectrics

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H. Khassaf, T. Patel, S. P. Alpay
Journal: Journal of Applied Physics
J. Appl. Phys. 121, 144102 (2017)
https://doi.org/10.1063/1.4980098
Published: April 2017
View articletitled, Combined intrinsic elastocaloric and electrocaloric properties of ferroelectrics
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Journal Articles

Switchable and tunable film bulk acoustic resonator fabricated using barium strontium titanate active layer and Ta2O5/SiO2 acoustic reflector

N. M. Sbrockey, T. S. Kalkur, A. Mansour, H. Khassaf, H. Yu, M. Aindow, S. P. Alpay, G. S. Tompa
Journal: Applied Physics Letters
Appl. Phys. Lett. 109, 052902 (2016)
https://doi.org/10.1063/1.4960361
Published: August 2016
View articletitled, Switchable and tunable film bulk acoustic resonator fabricated using barium strontium titanate active layer and Ta2O5/SiO2 acoustic reflector
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Journal Articles

Misfit strain phase diagrams of epitaxial PMN–PT films

N. Khakpash, H. Khassaf, G. A. Rossetti, Jr., S. P. Alpay
Journal: Applied Physics Letters
Appl. Phys. Lett. 106, 082905 (2015)
https://doi.org/10.1063/1.4913706
Published: February 2015
View articletitled, Misfit strain phase diagrams of epitaxial PMN–PT films
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Journal Articles

Pyroelectric and dielectric properties of ferroelectric films with interposed dielectric buffer layers

Y. Espinal, M. T. Kesim, I. B. Misirlioglu, S. Trolier-McKinstry, J. V. Mantese, S. P. Alpay
Journal: Applied Physics Letters
Appl. Phys. Lett. 105, 232905 (2014)
https://doi.org/10.1063/1.4903993
Published: December 2014
View articletitled, Pyroelectric and dielectric properties of ferroelectric films with interposed dielectric buffer layers
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Journal Articles

Layer thickness and period as design parameters to tailor pyroelectric properties in ferroelectric superlattices

I. B. Misirlioglu, M. T. Kesim, S. P. Alpay
Journal: Applied Physics Letters
Appl. Phys. Lett. 105, 172905 (2014)
https://doi.org/10.1063/1.4900940
Published: October 2014
View articletitled, Layer thickness and period as design parameters to tailor pyroelectric properties in ferroelectric superlattices
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Includes: Supplementary data
Journal Articles

Enhanced electrocaloric and pyroelectric response from ferroelectric multilayers

M. T. Kesim, J. Zhang, S. P. Alpay, L. W. Martin
Journal: Applied Physics Letters
Appl. Phys. Lett. 105, 052901 (2014)
https://doi.org/10.1063/1.4892455
Published: August 2014
View articletitled, Enhanced electrocaloric and pyroelectric response from ferroelectric multilayers
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Journal Articles

Strain engineered barium strontium titanate for tunable thin film resonators

H. Khassaf, N. Khakpash, F. Sun, N. M. Sbrockey, G. S. Tompa, T. S. Kalkur, S. P. Alpay
Journal: Applied Physics Letters
Appl. Phys. Lett. 104, 202902 (2014)
https://doi.org/10.1063/1.4879281
Published: May 2014
View articletitled, Strain engineered barium strontium titanate for tunable thin film resonators
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Journal Articles

Strong dependence of dielectric properties on electrical boundary conditions and interfaces in ferroelectric superlattices

I. B. Misirlioglu, M. T. Kesim, S. P. Alpay
Journal: Applied Physics Letters
Appl. Phys. Lett. 104, 022906 (2014)
https://doi.org/10.1063/1.4862408
Published: January 2014
View articletitled, Strong dependence of dielectric properties on electrical boundary conditions and interfaces in ferroelectric superlattices
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Journal Articles

Tailoring dielectric properties of ferroelectric-dielectric multilayers

M. T. Kesim, M. W. Cole, J. Zhang, I. B. Misirlioglu, S. P. Alpay
Journal: Applied Physics Letters
Appl. Phys. Lett. 104, 022901 (2014)
https://doi.org/10.1063/1.4861716
Published: January 2014
View articletitled, Tailoring dielectric properties of ferroelectric-dielectric multilayers
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Journal Articles

Pyroelectric response of lead zirconate titanate thin films on silicon: Effect of thermal stresses

M. T. Kesim, J. Zhang, S. Trolier-McKinstry, J. V. Mantese, R. W. Whatmore, S. P. Alpay
Journal: Journal of Applied Physics
J. Appl. Phys. 114, 204101 (2013)
https://doi.org/10.1063/1.4833555
Published: November 2013
View articletitled, Pyroelectric response of lead zirconate titanate thin films on silicon: Effect of thermal stresses
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Journal Articles

Challenges and opportunities for multi-functional oxide thin films for voltage tunable radio frequency/microwave components

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, Jr., Kaushik Dayal, Long-Qing Chen, Darrell G. Schlom
Journal: Journal of Applied Physics
J. Appl. Phys. 114, 191301 (2013)
https://doi.org/10.1063/1.4827019
Published: November 2013
View articletitled, Challenges and opportunities for multi-functional oxide thin films for voltage tunable radio frequency/microwave components
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Journal Articles

Enhanced dielectric properties from barium strontium titanate films with strontium titanate buffer layers

M. W. Cole, E. Ngo, C. Hubbard, S. G. Hirsch, M. Ivill, W. L. Sarney, J. Zhang, S. P. Alpay
Journal: Journal of Applied Physics
J. Appl. Phys. 114, 164107 (2013)
https://doi.org/10.1063/1.4827421
Published: October 2013
View articletitled, Enhanced dielectric properties from barium strontium titanate films with strontium titanate buffer layers
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Journal Articles

Strain induced variations in band offsets and built-in electric fields in InGaN/GaN multiple quantum wells

L. Dong, J. V. Mantese, V. Avrutin, Ü. Özgür, H. Morkoç, S. P. Alpay
Journal: Journal of Applied Physics
J. Appl. Phys. 114, 043715 (2013)
https://doi.org/10.1063/1.4816254
Published: July 2013
View articletitled, Strain induced variations in band offsets and built-in electric fields in InGaN/GaN multiple quantum wells
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Journal Articles

Role of heteroepitaxial misfit strains on the band offsets of Zn1−xBexO/ZnO quantum wells: A first-principles analysis

L. Dong, S. P. Alpay
Journal: Journal of Applied Physics
J. Appl. Phys. 111, 113714 (2012)
https://doi.org/10.1063/1.4729079
Published: June 2012
View articletitled, Role of heteroepitaxial misfit strains on the band offsets of Zn1−xBexO/ZnO quantum wells: A first-principles analysis
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Journal Articles

Electrocaloric properties of epitaxial strontium titanate films

J. Zhang, I. B. Misirlioglu, S. P. Alpay, G. A. Rossetti, Jr.
Journal: Applied Physics Letters
Appl. Phys. Lett. 100, 222909 (2012)
https://doi.org/10.1063/1.4721668
Published: June 2012
View articletitled, Electrocaloric properties of epitaxial strontium titanate films
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