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19972023
most citedSpatially Resolved Raman Spectroscopy of Single- and Few-Layer Graphene

2.5k citations

Showing 2021 · cond-mat.mes-hallShow all

6 papers · 2 filters

cond-mat.mes-hall2021★ 1 cited

Soft-clamped silicon nitride string resonators at millikelvin temperatures

Thomas Gisler, Mohamed Helal, Deividas Sabonis +5

We demonstrate that soft-clamped silicon nitride strings with large aspect ratio can be operated at \si{\milli\kelvin} temperatures. The quality factors () of two measured devic…

cond-mat.mes-hall2021★ 9 cited

Extracting the lifetime of a synthetic two-level system

Gabriel Margiani, Sebastian Guerrero, Toni L. Heugel +11

The Kerr Parametric Oscillator (KPO) is a nonlinear resonator system that is often described as a synthetic two-level system. In the presence of noise, the system switches between…

cond-mat.mes-hall2021★ 19 cited

Strong parametric coupling between two ultra-coherent membrane modes

David Hälg, Thomas Gisler, Eric C. Langman +5

We demonstrate parametric coupling between two modes of a silicon nitride membrane. We achieve the coupling by applying an oscillating voltage to a sharp metal tip that approaches…

cond-mat.mes-hall2021★ 203 cited

Breakdown of the topological protection by cavity vacuum fields in the integer quantum Hall effect

Felice Appugliese, Josefine Enkner, Gian Lorenzo Paravicini-Bagliani +6

The control of the electronic properties of materials via the vacuum fields of cavity electromagnetic resonators is one of the emerging frontiers of condensed matter physics. We sh…

cond-mat.mes-hall2021★ 20 cited

Scattering between minivalleys in a moiré material

Petar Tomić, Peter Rickhaus, Aitor Garcia-Ruiz +8

A unique feature of the complex band structures of moiré materials is the presence of minivalleys, their hybridization, and scattering between them. Here we investigate magneto-tra…

cond-mat.mes-hall2021★ 21 cited

Spatially resolved surface dissipation over metal and dielectric substrates

Martin Héritier, Raphael Pachlatko, Ye Tao +3

We report spatially resolved measurements of static and fluctuating electric fields over conductive (Au) and non-conductive (SiO2) surfaces. Using an ultrasensitive `nanoladder' ca…