Research Themes +
Energy Technologies Area (ETA) researchers are continually building on the strong scientific foundation we have developed over the past 50 years. We address the world’s most pressing climate challenges by bringing to market energy-efficient innovations across the buildings, transportation, and industrial sectors. ETA is at the forefront of developing better batteries for electric vehicles; improving the country's aging electrical grid and innovating distributed energy and storage solutions; developing grid-interactive, efficient buildings; and providing the most comprehensive market and data analysis worldwide for renewable technologies like wind and solar.
Strategic Initiatives +
The Energy Technologies Area (ETA) Strategic Plan is the guiding force for our research and development for the next ten years. It clearly charts a path toward clean-energy solutions and focuses on five detailed Strategic Initiatives. The Plan provides an in-depth look at how ETA is accelerating research to provide affordable, clean energy to all while accomplishing deep, economy-wide decarbonization, looking to avoid a rise in global average temperature while simultaneously developing solutions to increase humanity's resilience to extreme weather volatility.
Publications
News +
For media inquiries,
please contact ETA
Interim Communications Manager
Kiran Julin

[email protected]
About Us +
The Energy Technologies Area (ETA) is unique in translating fundamental scientific discoveries into scalable technology adoption. Our approach combines an understanding of the marketplace and the role of state and federal regulation and policies. ETA's research drives real-world, practical results that affect and improve the everyday lives of Americans and those across the globe. Saving energy and battling the Climate Crisis are key to the foundation of our research, which is driven by technoeconomic analysis and in-lab experimentation and discovery.

Studies of ferroelectric field effects in Pt/Pb(Zr0. 5Ti0. 5)O3/YBa2Cu3O7 heterostructures

Publication Type

Journal Article

Authors

Dong, Z.W., Z. Trajanovic, T. Boettcher, I. Takeuchi, V. Talyansky, C.-H. Chen, R.P. Sharma, Ramamoorthy Ramesh, T. Venkatesan

Abstract

Pt/Pb(Zr0. 5Ti0. 5)O3/YBa2Cu3O7 (Pt/PZT/YBCO) heterostructures were made by pulsed laser deposition on (lOO)SrTiOj or (100) LaSrGaO4 substrates for studies of ferroelectric field effects in high-Tc superconducting thin films. X-ray diffraction data including <t> scans indicated that the PZT layer grew with c-axis orientation epitaxially on top of the YBCO layers. Polarization measurements at room temperature and 77 K showed similar hysteretic loops in the PZT layer. The rémanent polarization field can induce as many as 10 carriers/cm in the bottom superconducting channel at the interface. Both c-axis and in-plane-aligned a-axis-oriented YBCO films typically exhibiting zero resistance transition temperature of 85 K were used as superconducting channels. By polarizing the PZT film a 2 - 5% change in both the channel resistance and the critical current at 77 - 85 K was obtained in 100 nm thick films. Device operation at microsecond speeds was observed. © 1997 IEEE.

Journal

IEEE Transactions on Applied Superconductivity

Volume

Year of Publication

1997

ISSN

10518223

Notes

cited By 5

Research Areas

Ramesh Lab