2018. September 20.
New popular science lecture series is launched at BME on Sep 28. The series, named "Science Campus", is aimed primarily at high-school students, but everyone is welcome to attend.
More information (in Hungarian) is found here: http://felvi.ttk.bme.hu/sciencecampus
2018. August 26.
2018. July 23.
Honorary associate professor of our Institute recieved the lifetime achievement award of the Roland Eötvös Physical Society.
2018. July 23.
BME's ScienceCamp, a summer camp for high-school students, took place last week. Out of the 61 participants, 20 represented Hungarian minorities from abroad. See this video for highlights, and this report (in Hungarian) on the news portal of BME.
2018. July 08.
The Kids` University programme of BME takes place between July 1 and 12, with contributions from our colleagues at the Institute of Physics.
2018. May 25.
With Károly Härtlein, in the lecture hall F29, at 5pm on Friday, June 1.
2018. May 23.
Balázs Dóra was awarded the prestigious grant from the Hungarian Academy of Sciences to establish a research group at the Department of Theoretical Physics.
2018. May 11.
Professor of our institute received the award at the annual meeting of the Hungarian Academy of Sciences.
2018. May 09.
Hungarian state TV's report on the outreach event "Physics for Everyone" can be downloaded here.
2018. May 08.
New way of stabilizing surface magnetic skyrmions: publication in Nature Communications
Surface magnetic skyrmions (topologically protected magnetic whirls) are particularly promising elements of the next generation of high-density magnetic storage and magnetic logic devices. Researchers of the University of Hamburg, in collaboration with members of the Computational Magnetism research group of the Department of Theoretical Physics at BME, proposed a new method of stabilizing magnetic skyrmions, and published their results in Nature Communications. The atomic thin film Fe2/Ir(111) under investigation has a spin spiral ground state with a period of 1.2 nm and shows no formation of magnetic skyrmions in magnetic fields under laboratory conditions. Upon adsorption of hydrogen, a spin spiral ground state with a period of 3.5 nm was observed, from which stable magnetic skyrmions have been formed in the presence of an external magnetic field of 3 T, as shown by spin-polarized scanning tunneling microscopy (SP-STM) images. Former members of our institute, Levente Rózsa (presently staying in Hamburg with a Humboldt fellowship) and Krisztián Palotás (Slovak Academy of Sciences, Bratislava), as well as current coworkers of our institute, László Udvardi and László Szunyogh, participated in the research, and in terms of ab initio calculations and spin dynamics simulations revealed that the observed modulation of the magnetic ground state of the Fe layer upon hydrogen adsorption can be associated unambiguously with changes in the geometric and electronic structure of the system.
The publication:
Pin-Jui Hsu, Levente Rózsa, Aurore Finco, Lorenz Schmidt, Krisztián Palotás, Elena Vedmedenko, László Udvardi, László Szunyogh, André Kubetzka, Kirsten von Bergmann & Roland Wiesendanger
Inducing skyrmions in ultrathin Fe films by hydrogen exposure
Nature Communications 9, 1571 (2018).
Below: SP-STM images showing the formation of magnetic skyrmions in the ultrathin film Fe2/Ir(111) due to adsorption of hydrogen and magnetic field.
