Počet záznamů: 1
Tuning emergent magnetism in a Hund's impurity
- 1.
SYSNO ASEP 0455201 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Tuning emergent magnetism in a Hund's impurity Tvůrce(i) Khajetoorians, A.A. (DE)
Valentyuk, M. (DE)
Steinbrecher, M. (DE)
Schlenk, T. (DE)
Shick, Alexander (FZU-D) RID, ORCID
Kolorenč, Jindřich (FZU-D) RID, ORCID, SAI
Lichtenstein, A.I. (DE)
Wehling, T.O. (DE)
Wiesendanger, R. (DE)
Wiebe, J. (DE)Zdroj.dok. Nature Nanotechnology. - : Nature Publishing Group - ISSN 1748-3387
Roč. 10, č. 11 (2015), s. 958-U195Poč.str. 8 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova magnetic anisotropy ; Kondo effect ; strong electron correlations ; scanning tunnelling microscopy Vědní obor RIV BM - Fyzika pevných látek a magnetismus CEP GC15-05872J GA ČR - Grantová agentura ČR Institucionální podpora FZU-D - RVO:68378271 UT WOS 000364528300013 EID SCOPUS 84946559090 DOI 10.1038/NNANO.2015.193 Anotace The concept of a Hund's metal -a metal in which electron correlations are driven by Hund's rule coupling - can explain the exotic behaviour of strongly correlated metallic materials. We show that the basic constituent of a Hund's metal - a Hund's impurity - can be realized using a single iron atom adsorbed on a platinum surface, a system that comprises a magnetic moment in the presence of strong charge fluctuations. The magnetic properties can be controlled by using the tip of a scanning tunnelling microscope to change the binding site and degree of hydrogenation of the 3d transition-metal atom. We are able to experimentally explore a regime of four almost degenerate energy scales (Zeeman energy, temperature, Kondo temperature and magnetic anisotropy) and probe the magnetic excitations with the microscope tip. The system could be used to test predictions of advanced many-body theories for non-Fermi liquids in quantum magnets or unconventional superconductors. Pracoviště Fyzikální ústav Kontakt Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Rok sběru 2016
Počet záznamů: 1