Инд. авторы: Sessi P., Reis F., Bathon T., Kokh K.A., Tereshchenko O.E., Bode M.
Заглавие: Signatures of Dirac fermion-mediated magnetic order
Библ. ссылка: Sessi P., Reis F., Bathon T., Kokh K.A., Tereshchenko O.E., Bode M. Signatures of Dirac fermion-mediated magnetic order // Nature Communications. - 2014. - Vol.5. - Art.5349. - ISSN 2041-1723.
Внешние системы: DOI: 10.1038/ncomms6349; РИНЦ: 24031873; РИНЦ: 24031873; PubMed: 25354961; SCOPUS: 2-s2.0-84922345044; WoS: 000344063000001;
Реферат: eng: The spin-momentum locking of topological states offers an ideal platform to explore novel magnetoelectric effects. These intimately depend on the ability to manipulate the spin texture in a controlled way. Here we combine scanning tunnelling microscopy with single-atom deposition to map the evolution of topological states under the influence of different magnetic perturbations. We obtain signatures of Dirac fermion-mediated magnetic order for extremely dilute adatom concentrations. This striking observation is found to critically depend on the single adatoms' magnetic anisotropy and the position of the Fermi level. Our findings open new perspectives in spin engineering topological states at the atomic scale and pave the way to explore novel spin-related topological phenomena with promising potential for applications. © 2014 Macmillan Publishers Limited. All rights reserved.
Ключевые слова: scanning tunneling microscopy; quantitative analysis; magnetism; Fourier transformation; fermion; energy; dispersion; crystallization; conductance; Article; anisotropy; adsorption; topology; momentum; magnetic anisotropy; transition element; surface property;
Издано: 2014
Физ. характеристика: 5349