BME Doctoral School of Physical Sciences
PhD témajavaslat

A témavezető neve: Penc Karlo
- munkahelye: Wigner FK
- beosztása: Tudományos Tanácsadó
- tudományos fokozata: MTA doktora
- email címe: penc.karlo@wigner.hu
A konzulens neve: Bordács Sándor
- tanszéke: Fizika Tanszék
- beosztása: Egyetemi docens
- tudományos fokozata: Ph.D.
- email címe: bordacs.sandor@wigner.bme.hu
A doktori munka készítésénak helye és címe:
Wigner FK
1121 Budapest, Konkoly Thege Miklós út 29-33
A kidolgozandó feladat címe: Exotic Physics in Mott insulators
A téma rövid leírása, a megoldandó legfontosabb feladatok felsorolása:
Exotic Physics in Mott insulators
 
In recent decades there have been great advances in understanding the topological properties of weakly interacting electrons. However, much less is known for strongly interacting fermionic systems, like the Mott insulators. In these insulators magnetic moments interact with each other, realizing new states of quantum matter with exotic excitations and unusual ground state properties. What new phenomena may we expect, especially if we consider the coupling between spins, lattice, and electric polarization due to spin-orbit coupling? 
 
 For example, the Hall effect in metals a consequence of the electronic bands having a finite Chern number. In the insulators there are no conducting electrons, but may it happen that a kind of dynamical Hall effect emerges at finite excitation energies, which can be observed by light absorption in the SrCu2(BO3)2?  
 
What are the properties of spin excitations in multi-layered CrI3? Is it possible to observe spin-quadrupolar excitations in materials suspected to realize spin-nematic ordering, like LiCuVO4
 
Going beyond ordered materials, does the magnetoelectric effect leads to new physics in spin liquids? 
 
In this Ph.D. project, we will aim to address such questions. This is a theoretical study requiring the application of analytical and numerical methods, with the possibility to interact with experimental groups of Profs. S. Bordács and F. Simon.
A jelentkezővel szemben támasztott elvárások:

The enthusiastic applicant is expected to be proficient in mathematical methods and quantum physics, with basic programming knowledge.

Nyilatkozat: A fenti munkahelyen a javasolt témában kutatás feltételei biztosítottak, a téma meghirdetését a munkahelyi vezető jóváhagyta.
Budapesti Műszaki és Gazdaságtudományi Egyetem
Természettudományi Kar
1111 Budapest, Műegyetem rakpart 3. K épület I. em. 18.
www.ttk.bme.hu