Customized low temperature measurements, studying Spin Qubits and Monopoles in Spin Ice

Condensed Matter Seminars

Speaker: Jan Kycia from the University of Waterloo
Date & Time: Thu, 2018-04-05 14:00 - 15:00
Location: BRIM 311
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Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:”Table Normal”; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:””; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:”Times New Roman”,serif;} My group works on applying customized cryogenic measurements. In this presentation I will describe some of these measurements. In one, we are working on improving the sensitivity and bandwidth of the readout of GaAs based spin qubits using an rf-QPC. In another set of measurements, we are using sensitive calorimetry and SQUID magnetization measurements to study frustrated magnetic materials such as Dy2Ti2O7.  Dy2Ti2O7 has been shown to be a magnetic analog of water ice, and thus dubbed “spin ice”. Theories and experiments have developed a fascinating perspective of viewing excitations within the low temperature phase of this spin ice as monopoles.

https://uwaterloo.ca/physics-astronomy/people-profiles/jan-kycia