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Science 14 July 2006:
Vol. 313. no. 5784, pp. 181 - 183
DOI: 10.1126/science.1126230
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Perspectives

APPLIED PHYSICS:
Tunneling Across a Ferroelectric

Evgeny Y. Tsymbal1 and Hermann Kohlstedt2

Spontaneously polarized materials through which electrons pass by tunneling may be used in novel electronic devices and may reveal new basic physics at the nanometer scale.

1E. Y. Tsymbal is in the Department of Physics and Astronomy, Nebraska Center for Materials and Nanoscience, University of Nebraska, Lincoln, NE 68588, USA. E-mail: tsymbal{at}unl.edu

2H. Kohlstedt is at the Institut für Festkörperforschung, Forschungszentrum Jülich, D-52425 Jülich, Germany, and the Department of Materials Science and Engineering, University of California, Berkeley, CA 94720, USA.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)