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Martin Josefsson

Position:    PhD student

E-mail:    martin.josefsson( at )ftf.lth.se
Phone:    +46 46 222 98 39
Cell phone:   
Room:    C264D
Address:    box 118
221 00 Lund
      Sweden

University:    Lund University
Division:    Solid State Physics
Research Area(s):    Quantum Physics
Nanoenergy
Interests:   

 
martin.josefsson

Teaching:

I will have teaching activities in the following courses during the academic year 2018/2019:
FAFA10 - Kvantfenomen och nanoteknologi
FFFN35 - Physics of low-dimensional structures
FFFF01 - Elektroniska material
FFFF05 - Fasta tillståndets fysik 
FAFF15 - Hållbar utveckling med nanoperspektiv






Research:

I study thermoelectric effects in nanoscale systems, such as quantum dots. Quantum properties, e.g. quantum confinement, can make nanoscale structures ideal for high efficiency thermal-to-electrical energy conversion. Thermoelectric effects can also provide information about fundamental physics of small systems that is not available from electrical effects alone.

I use a Master equation approach to calculate the particle and energy currents in quantum dots weakly coupled to reservoirs. Besides from single particle tunneling I am especially interested in the effects higher order tunneling processes will have on the system's thermoelectric response.

Publications:

A quantum-dot heat engine operating close to the thermodynamic efficiency limits. Josefsson et al. Nature Nanotechnology 13, p920–924 (2018).

Thermoelectric characterization of the Kondo resonance in nanowire quantum dots. Svilans et al. ArXiv:1807.07807




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