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Applied Physics Letters / Volume 81 / Issue 16 / STRUCTURAL, MECHANICAL, THERMODYNAMIC, AND OPTICAL PROPERTIES OF CONDENSED MATTER

Appl. Phys. Lett. 81, 2968 (2002); http://dx.doi.org/10.1063/1.1515363 (3 pages)

Structural disorder and loss of piezoelectric properties in α-quartz at high temperature

J. Haines1, O. Cambon1, D. A. Keen2, M. G. Tucker3, and M. T. Dove3

1Laboratoire de Physico-Chimie de la Matière Condensée, UMR CNRS 5617, Université Montpellier II Sciences et Techniques du Languedoc, cc 003, Place Eugène Bataillon, 34095 Montpellier cedex 5, France
2Department of Physics, Oxford University, Clarendon Laboratory, Parks Road, Oxford, OX1 3PU, United Kingdom
3Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge, CB2 3EQ, United Kingdom

(Received 23 July 2002; accepted 27 August 2002)

The piezoelectric properties of α-quartz-based resonators, characterized by the mechanical quality factor, Q, are found to degrade beginning above 300 °C. This is well below the transition at 573 °C to the β phase, which in principle limits the piezoelectric response of this material. This gradual loss of piezoelectric response can be linked to the increase in structural disorder in α-quartz found in total neutron scattering measurements. Analysis of these data by reverse Monte Carlo modeling indicates that between 200 and 400 °C, the local disorder in the instantaneous structure of α-quartz becomes comparable to that of β-quartz. © 2002 American Institute of Physics.

© 2002 American Institute of Physics

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KEYWORDS and PACS

Keywords

quartz, crystal resonators, Q-factor, piezoelectric materials, neutron diffraction, order-disorder transformations, Monte Carlo methods

PACS

  • 77.84.Bw

    Elements, oxides, nitrides, borides, carbides, chalcogenides, etc.

  • 77.65.Fs

    Electromechanical resonance; quartz resonators

  • 61.50.Ks

    Crystallographic aspects of phase transformations; pressure effects

  • 61.43.Bn

    Structural modeling: serial-addition models, computer simulation

  • 64.70.K-

    Solid-solid transitions

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.1515363

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

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