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Your search keyword '"Quartz -- Structure"' showing total 3 results
Start Over Descriptor "Quartz -- Structure" Topic physics
3 results on '"Quartz -- Structure"'

1. Acoustic losses in a thick quartz plate at low temperatures

Author

Grib, A., Heinert, D., Nawrodt, R., Schwarz, C., GroBe, V., Seidel, P., Martin, I., Rowan, S., and Hough, J.

Subjects
Damping (Mechanics) -- Analysis, Quartz -- Structure, Quartz -- Mechanical properties, Quartz -- Electric properties, Sound-waves -- Analysis, Physics
Abstract

A model is developed to describe experimental data of mechanical losses in a a round quartz plate with the diameter 7.48 cm and the thickness 1.2 cm at temperatures 5-25 K in the range of eigenfrequencies 11-300 kHz. The model is able to account for both the contribution of thermoelastic losses and the contribution due to the interaction of the acoustic wave with thermal phonons (Akhieser damping).

Published
2010

2. Coupled magnetostatic and electromagnetic oscillations in hexaferrite-dielectric heterostructures

Author

Popov, Maksym A., Zavislyak, Igor V., Srinivasan, Gopalan, and Zagorodnii, Volodymyr V.

Subjects
Electromagnetism -- Analysis, Ferrites (Magnetic materials) -- Magnetic properties, Ferrites (Magnetic materials) -- Electric properties, Magnetostatics -- Analysis, Quartz -- Structure, Quartz -- Magnetic properties, Quartz -- Electric properties, Strontium -- Magnetic properties, Strontium -- Electric properties, Physics
Abstract

The observation of coupled magnetostatic-electromagnetic oscillations over 60-75 GHz in strontium hexaferrite-quartz structures is reported. Estimated Q-factor for the coupled modes is found to show significant and unique variation with the bias magnetic field in the mode repulsion region.

Published
2009

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