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Piezoelectric characterization and thermal stability of a high-performance -quartz-type material, gallium arsenate
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10.1063/1.1874293
/content/aip/journal/jap/97/7/10.1063/1.1874293
http://aip.metastore.ingenta.com/content/aip/journal/jap/97/7/10.1063/1.1874293

Figures

Image of FIG. 1.
FIG. 1.

single crystals.

Image of FIG. 2.
FIG. 2.

Orientation of the -rotated-cut plates.

Image of FIG. 3.
FIG. 3.

X-ray topography of a -rotated plate of . (The two white bars at the extremities of the sample are due to the supports.)

Image of FIG. 4.
FIG. 4.

Graphical resolution of with for the four well-known -quartz-type materials.

Image of FIG. 5.
FIG. 5.

Wave velocity of the shear mode vibration (associated with the elastic constant) of the AT cut in the -quartz materials.

Image of FIG. 6.
FIG. 6.

TGA measurements on powder.

Image of FIG. 7.
FIG. 7.

Experimental (+) and calculated (solid line) powder-diffraction profiles from the Rietveld refinements of the structure of . The lower curve is the difference curve between experimental and calculated profiles.

Image of FIG. 8.
FIG. 8.

Temperature dependence of the intertetrahedral (–O–) bridging angle in -quartz materials (see Refs. 29, 31, 35, and 36).

Image of FIG. 9.
FIG. 9.

Evolution of the normalized interplanar distance of the AT plane as a function of the temperature for the well-characterized -quartz materials (see Refs. 29, 31, and 36).

Tables

Generic image for table
Table I.

Air-gap piezoelectric results.

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Table II.

AT-cut characteristic parameters of the well-characterized -quartz materials compared to the corresponding experimental values obtained for .

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Table III.

Unit-cell parameters, volume, and agreement factors for as a function of temperature.

Generic image for table
Table IV.

Fractional atomic coordinates and isotropic atomic displacement parameters of as a function of temperature. Trigonal: , Ga: sites (,0,), As: sites (,0,), O: sites .

Generic image for table
Table V.

Intertetrahedral Ga–O–As bridging and tetrahedral tilt angles (°) in as a function of temperature.

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/content/aip/journal/jap/97/7/10.1063/1.1874293
2005-03-28
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Piezoelectric characterization and thermal stability of a high-performance α-quartz-type material, gallium arsenate
http://aip.metastore.ingenta.com/content/aip/journal/jap/97/7/10.1063/1.1874293
10.1063/1.1874293
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