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Determination of the Anisotropy of Permittivity of Quantum Paraelectric Strontium Titanate
Maxim Goryachev, Lingfei Zhao, Zijun Zhao +3
The dielectric properties of strontium titanate (SrTiO) have previously been reported from room temperature to low temperatures with conflicting results. In this work, precisio…
Single Photon Level Study of Microwave Properties of Lithium Niobate at milli-Kelvin Temperatures
Maxim Goryachev, Nikita Kostylev, Michael E. Tobar
Properties of doped and natural impurities in Lithium Niobate single crystals are studied using the Whispering Gallery Mode method at low temperatures as a function of magnetic fie…
Collective Behaviour of Cr ions in Ruby Revealed by Whispering Gallery Modes
Jeremy Bourhill, Maxim Goryachev, Warrick G. Farr +1
We present evidence for collective action of Cr ion impurities in a highly doped ruby crystal at microwave frequencies. The cylindrical geometry of the crystal allows for th…