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Claes Thelander

Position:    Associate Professor (Universitetslektor, Docent)

E-mail:    claes.thelander@ftf.lth.se
Phone:    +46 (0)46 2227740
Cell phone:   
Room:    Q211
Address:    Box 118
22100 Lund
      Sweden

University:    Lund University
Division:    Solid State Physics
Research Area(s):    Materials Science
Quantum Physics
Nanoelectronics- & photonics
Interests:    Device and transport physics of semiconductor heterostructures in nanowires

 
ftf-cth

Open Positions

Postdoc position in experimental quantum transport


The topic of this 2y-postdoc position is to study electron transport in coupled quantum dots and wires with controlled symmetries, and to explore the physics of quasiparticles emerging when these interact with superconducting contacts. The position is part of a larger collaborative project with a purpose to develop and study new types of semiconductor materials and nanostructures based on 3D atomic-level design.

Candidates should have a PhD in experimental quantum physics with experience in low temperature (mK) transport measurements and fabrication of nanostructures.

Please contact me for further information.


Teaching:

Processing and Device Technology (Process- och komponentteknologi) FFF110/FYSD13. The course is given in the beginning of the fall (LP1, 7.5 HP). A link to the course homepage is found in the menu to the right.

Research

The research in my group is primarily focused on studying transport in semiconductor nanowires of different narrow bandgap materials such as InAs, InSb, GaSb, InP and their alloys. Here we explore the electronic structure of novel crystal phases, and how these phases can be used in device structures and for transport physics.

One particular focus is quantum dots (artificial atoms) and coupled quantum dots (artificial molecules). We have developed a new method to create tunable coupled quantum dots with extremely strong confinement, which are ideal for exploring electron interactions and spin physics.

Ongoing work involves exploring Kondo physics of coupled dots, quantum ring formation and orbital enhanced g-factors, coupling to ferromagnetic and superconducting contacts.

Recent publications:

"Spectroscopy and level detuning of few-electron spin states in parallel InAs quantum dots"
C. Thelander, M. Nilsson, F. Viñas Boström, A. Burke, S. Lehmann, K. A. Dick, M. Leijnse
Phys. Rev. B 98, 245305 (2018)
https://arxiv.org/pdf/1808.06431

"Thermoelectric Characterization of the Kondo Resonance in Nanowire Quantum Dots"
A. Svilans, M. Josefsson, A. M. Burke, S. Fahlvik, C. Thelander, H. Linke, M. Leijnse
Phys. Rev. Lett. 121, 206801 (2018)

"Tuning the two-electron hybridization and spin states in parallel-coupled InAs quantum dots"
M. Nilsson, F. Viñas Boström, S. Lehmann, K. A. Dick, M. Leijnse, C. Thelander
Phys. Rev. Lett. 121, 156802 (2018)
https://arxiv.org/abs/1803.00326

"A quantum-dot heat engine operating close to the thermodynamic efficiency limits"
M. Josefsson, A. Svilans, A. M. Burke, E. A. Hoffmann, S. Fahlvik, C. Thelander, M. Leijnse, H. Linke
Nature Nanotechnology 13, 920 (2018)

"Thermoelectric power factor limit of a 1D nanowire"
I.-J. Chen, A. Burke, A. Svilans, H. Linke, C. Thelander
Phys. Rev. Lett. 120, 177703 (2018)
https://arxiv.org/abs/1709.10511

"Parallel-Coupled Quantum Dots in InAs Nanowires"
M. Nilsson, I.-J. Chen, S. Lehmann, V. Maulerova, K. A. Dick, C. Thelander
Nano Letters 17, 7847(2017)

"Conduction Band Offset and Polarization Effects in InAs Nanowire Polytype Junctions"
I.-J. Chen, S. Lehmann, M. Nilsson, P. Kivisaari, H. Linke, K. A. Dick, C. Thelander
Nano Letters 17, 902 (2017)

"Electron-hole interactions in coupled InAs-GaSb quantum dots based on nanowire crystal phase templates"
M. Nilsson, L. Namazi, S. Lehmann, M. Leijnse, K. A. Dick, C. Thelander
Phys. Rev. B. 94, 115313 (2016)
http://arxiv.org/abs/1605.06081

"Single-electron transport in InAs nanowire quantum dots formed by crystal phase engineering" 
M. Nilsson, L. Namazi, S. Lehmann, M. Leijnse, K. A. Dick, C. Thelander
Phys. Rev. B. 93, 195422, (2016)
http://arxiv.org/abs/1512.06887

 

Information on publications:

To find a list of published journal papers that I have authored or coauthored please visit my "Researcher ID" web page:  http://www.researcherid.com/rid/H-4536-2011
(
Publication metrics from Web of Science, Nov-2018: 92 publ., h-index 37, average 60 citations/publ.)

Claes Thelander's pages

My home  
FFFF10/FYSD13  
Automatic Electrodes