Investigation of 2D topological electron systems using scanning tunneling microscopy

Nyomtatóbarát változatNyomtatóbarát változat
PhD típus: 
Fizikai Tudományok Doktori Iskola
Év: 
2018/2019
Témavezető: 
Név: 
Nemes-Incze Péter
Email cím: 
nemes.incze.peter@energia.mta.hu
Intézet: 
MTA - Energiatudományi Kutatóközpont, Topológia Nanoszerkezetekben Lendület csoport
Beosztás: 
tudományos munkatárs
Tudományos fokozat: 
PhD
Konzulens: 
Név: 
Csonka Szabolcs
Email cím: 
csonka@mono.eik.bme.hu
Intézet: 
Fizika tanszék, Természettudományi Kar
Beosztás: 
egyetemi docens
Tudományos fokozat: 
PhD
Leírás: 

Layered materials can be exfoliated using the “scotch tape” method, down to the single unit cell, or even atomic, thickness. Such materials include: graphene, transition metal chalcogenides (ex. MoS2), etc. These materials host a whole spectrum of physical properties, we can find among them: metals, semimetals, semiconductors, superconductors, topological insulators. After exfoliation, these materials can be stacked on top of each other, forming atomically perfect interfaces and creating new, artificial 2D electron systems. This is achieved through understanding the interaction between the various materials and controlling the stacking order and crystallographic orientation between the individual layers.

The PhD student will use existing and new techniques to exfoliate layered materials showing topological properties. The student will engage in developing the techniques to work with such materials in a glovebox environment, under N2 gas, with O2 and H2O impurity levels below the 1 ppm level. The single layers and heterostructures will be investigated mainly using state of the art ultrahigh vacuum, low temperature scanning tunneling microscopy. Furthermore, using charge transport measurements and Raman spectroscopy.

The work will be conducted with the aid of partners from abroad and from Budapest (BME, ELTE, Wigner).

The PhD student will have the opportunity to work in a young and motivated research team, using the most modern experimental techniques available at the Nanostructures Department of the Centre for Energy Research of the Hungarian Academy of Sciences (MTA EK).

Applicants should contact Peter Nemes-Incze: nemes.incze.peter@energia.mta.hu, or visit the lab at the KFKI Campus (1121 Budapest, Konkoly-Thege way 29-33), building 26, room 21b.

https://www.energia.mta.hu/~nemes/

Elvárások: 

Requirements and expectations regarding the applicant: good knowledge of solid state physics and quantum mechanics. An inquisitive and motivated mind.

Munkahely neve: 
MTA - Energiatudományi Kutatóközpont, KFKI kampusz, Csillebérc
Munkahely címe: 
1122 Budapest, Konkoly-Thege út 29-33