View : 55 Download: 12

Large effect of metal substrate on magnetic anisotropy of Co on hexagonal boron nitride

Title
Large effect of metal substrate on magnetic anisotropy of Co on hexagonal boron nitride
Authors
Gallardo, IkerArnau, AndresDelgado, FernandoBaltic, RomanaSingha, AparajitaDonati, FabioWackerlin, ChristianDreiser, JanRusponi, StefanoBrune, Harald
Ewha Authors
Fabio Donati
Issue Date
2019
Journal Title
NEW JOURNAL OF PHYSICS
ISSN
1367-2630JCR Link
Citation
NEW JOURNAL OF PHYSICS vol. 21
Keywords
magnetic anisotropic energyx-ray absorptiondensity functional theorymultiplet calculations
Publisher
IOP PUBLISHING LTD
Indexed
SCI; SCIE; SCOPUS WOS
Document Type
Article
Abstract
We combine x-ray absorption spectroscopy (XAS), x-raymagnetic circular dichroism (XMCD) and x-ray magnetic linear dichroism (XMLD) data with first principles density functional theory (DFT) calculations and amultiorbital many-body Hamiltonian approach to understand the electronic and magnetic properties of Co atoms adsorbed on h-BN/Ru(0001) and h-BN/Ir(111). The XAS line shape reveals, for both substrates, an electronic configuration close to 3d(8), corresponding to a spin S = 1 Magnetic field dependent XMCD data show large (14 meV) out-of-plane anisotropy on h-BN/Ru(0001), while it is almost isotropic (tens of mu eV) on h-BN/Ir(111). XMLD data together with both DFT calculations and the results of the multiorbital Hubbard model suggest that the dissimilar magnetic anisotropy originates from different Co adsorption sites, namely atop Non h-BN/Ru(0001) and 6-fold hollow on h-BN/Ir(111).
DOI
10.1088/1367-2630/ab3077
Appears in Collections:
자연과학대학 > 물리학전공 > Journal papers
Files in This Item:
Large effect of metal substrate.pdf(1.09 MB) Download
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE