Experimentelle Physik II

Lehrstuhlinhaber

Prof. Dr. Matthias Bode

Zimmer: F-161
Tel.: +49 931 31-83218
E-Mail: matthias.bode@uni-wuerzburg.de
Researcher ID: S-3249-2016
Sprechzeiten: kurzfristig nach Vereinbarung
(bitte E-Mail-Anfrage senden)

Sekretariat

Frau Eaton / Frau Riegel
Zimmer: F-162
Tel.: +49 931 31-85756
Fax: +49 931 31-85158
E-Mail: ep2-sekretariat@uni-wuerzburg.de

Auf dem Gebiet der Rastertunnelmikroskopie sind am Lehrstuhl EP2 mehrere Masterarbeiten zu vergeben. Eine hochwertige und moderne Ausstattung ist vorhanden! Bei der Durchführung der Projekte werden Sie mit einem kleinen Team zusammenarbeiten. Hier eine kurze Themenliste:

Switching spin spirals by stoichiometry
Charge transport across magnetic nanostructures on the atomic scale
Investigation of localized states in magnetic adatoms on Nb(110)
Growth and characterization of topological insulator thin films on Nb(110)
Influence of magnetic and non-magnetic adatoms on the 1D edge states of Pb_1-xSn_xSe

Mehr informationen zu den einzelnen Themen gibt es hier. Bei Interesse melden Sie sich bitte bei Prof. Matthias Bode (Stand 24.01.2024).

Bachelor-Expo 2024

Science news

A kagome lattice created by molecular self-organization

Atoms or molecules which arrange in the geometry of the so-called kagome lattice have recently attracted considerable interest in the solid-state physics community. This interest is mainly sparked by the fact that this tiling not only leads to Dirac states but also to flat bands which may exhibit strong electronic correlation effects. The term "kagome" originates from woven Japanese bamboo baskets where —during the weaving process— two distinct bamboo culms are interlaced with each other. In cooperation with the team around Frank Würthner at the Center for Nanosystems Chemistry (CNC) of our University who synthesized a fully planar boron-containing molecule, the 3,9-diboraperylene derivative B2-Per, we were able to produce and investigate self-organized molecuar kagome lattices. Our high-resolution scanning tunneling microscopy data reveal that the kagome supramolecular network is formed by a chiral and 120° head-to-head assembly of B2-Per. Comparison with density functional theory calculation performed by collaborators at the University of Kiel showed that this bond does not contain any metal atoms but is stabilized by hydrogen bonds. We observed a dispersionless flat band by tunneling spectroscopy and dI/dU maps and modeled them within tight-binding model calculations jointly with our colleagues from TP1.

The results have been published in Angew. Chem. Int. Ed. 69, e2024003 (2024) .

On Jan. 24, Markus Leisegang, Manuel Seitz, and Patrick Härtl presented our group's activities at the Bachelor-Expo 2024. This was another occasion where our "macro-STM" attracted a lot of attention. Thanks to all who contributed!!

Upcoming Colloquia & Seminars

Nov 07

Würzburg ToCoTronics Colloquium
"Quantum Spin Hall States and Topological Phase Transitions in Germanene"
Pantelides Bampoulis - U Twente/NL

Nov 14

Würzburg ToCoTronics Colloquium
"TBA"
Prof. Dr. Thomas Schäpers - Forschungszentrum Jülich

Nov 21

Würzburg ToCoTronics Colloquium
"The multi-state geometry of shift current and polarization"
Johannes Mitscherling - MPIPKS Dresden

PhD defense of Paula Weber

On July 12, Paula Weber successfully defended her PhD thesis on "Spin structures in manganese surfaces on bcc and fcc single-crystals of 5d elements studied by spin-polarised scanning tunneling microscopy: Mn-W(001) and MnOx-Ir(001)". Her work unraveled some of the most complex configurations of magnetic moments. We would like to congratulate Dr. Weber for her achievements and wish her all the best for her future life and career!

Funding

The third funding period of our SFB 1170 “Topological and Correlated Electronics at Surfaces and Interfaces” (ToCoTronics) has been approved! Our research group is contributing by two projects to this collaborative research effort:

In project A02 we will investigate spin-resolved transport properties of topological materials. We will utilize the spin-polarized molecular nanoprobe (SP-MONA), a novel technique which allows for investigations at single-nm length scales and with single-impurity sensitivity.

Project C02 is aimed towards ultra-high resolution surface studies of topological superconductors. We will engineer and scrutinize the properties of (i) two-dimensional thin film hybrid systems, (ii) one-dimensional adatom chains, and (iii) lattices of impurities, all viable platforms which potentially host Majorana modes.