Vats, Gaurav and kant, Ravi and Schoenherr, Peggy and Kumar, Ashok and Seidel, Jan (2020) Low-Pressure Mechanical Switching of Ferroelectric Domains in PbZr0.48Ti0.52O3. Advanced Electronic Materials, 6 (10). pp. 2000523-2000529. ISSN 2199-160X

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Low-energy switching of ferroelectrics is currently being investigated for energy-efficient nanoelectronics. While conventional methods employ electrical fields to switch the polarization state, mechanical switching is investigated as an interesting alternative low-energy switching concept, if low enough pressures could be achieved. Here, the thickness-dependent mechanical and electrical switching behavior of ferroelectric PbZr0.48Ti0.52O3/YBa2Cu3O7-delta(PZT/YBCO) epitaxial heterostructures grown on single crystalline LaAlO3-(001)(pseudo-cubic)(LAO) substrate is reported. Mechanical switching is found under relatively low force (600 nN; estimated pressure approximate to 0.21 GPa) in atomic force microscopy-based measurements. Mechanically switched domains can be erased by small electric fields and, interestingly, exhibit a surface potential change similar to electrically poled areas. The feasibility of switching these heterostructures with very low pressure makes them promising candidates for nanoscale electromechanical devices.

Item Type: Article
Additional Information: Copyright for this article belongs to M/s Wiley.
Subjects: Multidisciplinary
Materials Science
Applied Physics/Condensed Matter
Nanoscience/ Nanotechnology
Depositing User: Mr. Yogesh Joshi
Date Deposited: 25 Mar 2022 10:50
Last Modified: 25 Mar 2022 10:50

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