03 Mar 2019

APS March meeting in Boston with 6 talks and 1 poster from the group

This years March meeting featured talks by Leon Camenzind (QD orbitals B-spectroscopy), Kris Cerveny (Tempated InAs Nanowires), Taras Patlatiuk (Edge state wave functions), Christian Scheller (NIS subgap states), Dominik Zumbuhl…

28 Feb 2019

PhD Defense of Taras Patlatiuk

Taras Patlatiuk successfully defended his PhD thesis "Tunneling Spectroscopy of the Quantum Hall edge states using GaAs Quantum Wires" today with summa cum laude, with Prof. Hadar Steinberg, University of Jerusalem, as coreferee , Prof.…

23 Feb 2019

Two PRBs published on orbital and g-factor effects!

Our Tokyo RIKEN - Basel collaboration has published two papers in Phys. Rev. B. on the orbital and g-factor effects of a strong in-plane magnetic field on gate-defined quantum dots. Phys. Rev. B 99, 085308 (Feb 22, 2019)Phys. Rev. B…

01 Feb 2019

Interview by Radio SRF2, Wissenschaftsmagazin

Dominik was interviewed for the "Wissenschaftsmagazin" in radio SRF2 on the topic of the agreement between the EU and Switzerland with regards to the Swiss association to the EU research programs. Saturday, 2.2.2018, 12:35 SRF2Sunday,…

01 Feb 2019

Henok Weldeyesus joins our group as a PhD student

Having received his MSc from Goethe-University Frankfurt on "Electronic transport in 2D lattices of Co nanoparticles", Henok is starting his PhD thesis on tunneling spectroscopy and helical states in quantum wires. Welcome to the group,…

25 Jan 2019

Project presentation of Qianqian Chen

After joining the CEO wire team 6 months ago from the Huazhong University of Science and Technology, China, within an INSPIRE fellowship from QSIT, Qianqian has successfully defended her project thesis today. After carefully figuring out…

22 Jan 2019

PhD defense of Mirko Rehmann

Mirko Rehman successfully defended his PhD thesis "Hydrogen Plasma Defined Graphene Edges" today with Prof. Andras Kis, EPFL, as coreferee and Prof. Patrick Maletisnky chairing. Congratulations, Mirko, on a great thesis, and thanks very…

15 Jan 2019

European Microkelvin Platform (EMP) launched today in Heidelberg

Kick-off meeting of the European Microkelvin Platform (EMP), a new advanced EU research infrastructure within H2020 launching today in Heidelberg! 8 access giving laboratories with 9 partners from academia and industry from across Europe!…

07 Jan 2019

Dr. Mohammad Samani joins our group as a postdoc

Having received his PhD from the University of British Columbia, Canada, in Prof. Joshua Folk's group on "Local probe of electronic states in high mobility quantum Hall samples", Mohammad is starting on his postdoc on the microkelvin…

13 Dec 2018

PhD defense of Bilal Kalyoncu

Yemliha "Bilal" Kalyoncu successfully defended his PhD thesis "Hydrogen Plasma Etched Graphene Nanoribbons" today with Dr. Jonathan Prance, Lancaster University, as coreferee and Prof. Ilaria Zardo chairing. Congratulations, Bilal, on a…

01 Dec 2018

Miguel J. Carballido joins our group as a PhD student

Having received his MSc in Physics from the University of Basel on the thermal conductivity of nanowires using Ramanthermometry in Prof. Ilaria Zardo's group, Miguel is starting his PhD thesis on the Ge/Si nanowire project, developing these…

13 Nov 2018

New on arXiv: Closed-form weak localization with arbitrary Rashba and Dresselhaus interactions

We derive a closed-form expression for the weak localization corrections to the magnetoconductivity of a 2D electron system with arbitrary Rashba and both linear and cubic Dresselhaus spin-orbit interactions in a perpendicular magnetic…

25 Oct 2018

New ArXiv submission: Effciently measuring a quantum device using machine learning

Tuning quantum devices is becoming time-consuming as systems are scaled up, e.g. to numerous gates or contacts, and will soon become intractable without automation. Here, we present measurements on a quantum dot done by a machine learning…

24 Sep 2018

"Ambipolar dots in Si finFETs..." published in Appl. Phys. Letters

Ambipolar quantum dots in silicon fin field-effect transistors are defined using exclusively standard complementary metal-oxide-semiconductor fabrication techniques. We demonstrate stable quantum dot operation in the few charge carrier…

12 Sep 2018

"Evolution of the Quantum Hall bulk spectrum" published in Nature Communications!

Using a GaAs cleaved-edge quantum wire, we perform spectroscopy revealing the momentum and position of the quantum Hall edge states with unprecedented precision. We present models in excellent agreement with the experiment—thus providing…