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Nanoscale conduction modulation in Au/Pb(Zr, Ti)O3/SrRuO3 heterostructure

Appl. Phys. Lett. 75, 1449 (1999); doi:10.1063/1.124721

Issue Date: 6 September 1999

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Chikako Yoshida
Fujitsu Limited, 10-1 Morinosato-Wakamiya, Atsugi 243-0197, Japan

Akira Yoshida and Hirotaka Tamura
Fujitsu Laboratories Limited, 10-1 Morinosato-Wakamiya, Atsugi 243-0197, Japan
Nanoscale conduction modulation in an Au-tip/Pb(Zr, Ti)O3(PZT)/SrRuO3 heterostructure was observed using the Au-coated cantilever of scanning probe microscopy (SPM) as a mobile top electrode. In the ferroelectric layer of the heterostructure, a polarization-induced pattern 0.2 µm wide was written by applying a dc voltage and confirmed by the SPM piezoresponse method. The written pattern was read-out by detecting the change in conductance through the Au-tip/PZT/SrRuO3 heterostructure. Furthermore, the conduction modulations were explained by a model in which the Au-tip/PZT band bending is modified by an effective change injected into the PZT surface. ©1999 American Institute of Physics.
History: Received 5 April 1999; accepted 12 July 1999
Permalink: http://link.aip.org/link/?APPLAB/75/1449/1
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KEYWORDS and PACS

Keywords
PACS
  • 77.80.Dj
    Dielectrics, piezoelectrics, and ferroelectrics and their properties Ferroelectricity and antiferroelectricity Domain structure; hysteresis
  • 77.22.Ej
    Dielectrics, piezoelectrics, and ferroelectrics and their properties Dielectric properties of solids and liquids Polarization and depolarization
  • 77.84.Dy
    Dielectrics, piezoelectrics, and ferroelectrics and their properties Dielectric, piezoelectric, ferroelectric, and antiferroelectric materials Niobates, titanates, tantalates, PZT ceramics, etc.
  • 85.50.+k
    Electronic and magnetic devices; microelectronics Dielectric, ferroelectric, and piezoelectric devices
  • 77.55.+f
    Dielectrics, piezoelectrics, and ferroelectrics and their properties Dielectric thin films
  • 77.65.-j
    Dielectrics, piezoelectrics, and ferroelectrics and their properties Piezoelectricity and electromechanical effects
  • 73.20.-r
    Electronic structure and electrical properties of surfaces, interfaces, and thin films Surface and interface electron states
  • YEAR: 1999

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PUBLICATION DATA

ISSN:
0003-6951 (print)   1077-3118 (online)
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REFERENCES (16)
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