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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Tobar, Michael
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2024Conductivity freeze-out in isotopically pure Si -28 at millikelvin temperaturescitations
- 2019Experimental implementations of cavity-magnon systemscitations
- 2019Low-Temperature Properties of Whispering-Gallery Modes in Isotopically Pure Silicon-28citations
- 2018Isotopically Pure Silcon-28 Whispering Gallery Mode Resonators
- 2018Cavity magnon polaritons with lithium ferrite and three-dimensional microwave resonators at millikelvin temperaturescitations
- 2016A 3D printed superconducting aluminium microwave cavitycitations
- 2016Ultrahigh cooperativity interactions between magnons and resonant photons in a YIG spherecitations
- 2015Discovery of iron group impurity ion spin states in single crystal Y2SiO5 with strong coupling to whispering gallery photonscitations
- 2007Dependence of the dielectric permittivity of single-crystal quartz on thermal deformation at cryogenic temperaturescitations
- 2004The dual-mode frequency-locked technique for the characterisation of the temperature coefficient of permittivity of ainsotropic materialscitations
- 2004Whispering-Gallery Mode Technique Applied to the Measurement of the Dielectric Properties of Langasite Between 4 K and 300 K
- 2004Measurement of the strain-induced coefficient of permittivity of sapphire using whispering gallery modes excited in a high-Q acoustic sapphire oscillatorcitations
- 2001Whispering Gallery Method of Measuring Complex Permittivity in Highly Anisotropic Materials: Discovery of a New Type of Mode in Anisotropic Dielectric Resonatorscitations
- 2000Microwave characterisation of BaCe2Ti5O15 and Ba5Nb4O15 ceramic dielectric resonators using whispering gallery mode methodcitations
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article
Dependence of the dielectric permittivity of single-crystal quartz on thermal deformation at cryogenic temperatures
Abstract
The whispering gallery mode technique applied to single-crystal quartz has been used as a precise method to determine the dependence of the dielectric permittivity of pure single-crystal quartz on temperature-induced dimensional changes at cryogenic temperatures. The anisotropic temperature coefficients of permittivity (TCP) perpendicular and parallel to the crystal axis have been determined between 4.7 and 280 K. The difference between TCPs perpendicular and parallel to the crystal axis, near 17 GHz, between 160 and 300 K is approximately half the thermal expansion coefficient perpendicular to the crystal axis. Over this temperature range, the fractional change in the relative permittivity values perpendicular and parallel to the crystal axis, as a result of thermal expansion of the perpendicular dimension of the crystal, only differs by a small constant value. (C) 2007 American Institute of Physics.