English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/159887
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Title

Structural and magnetic properties of FeMnx chains (x=1-6) supported on Cu2 N/Cu (100)

AuthorsChoi, Deung-Jang; Robles, Roberto ; Gauyacq, J. P.; Ternes, Markus; Loth, Sebastian; Lorente, Nicolás
Issue Date2016
PublisherAmerican Physical Society
CitationPhysical Review B 94(8): 085406 (2016)
AbstractHeterogeneous atomic magnetic chains are built by atom manipulation on a Cu2N/Cu (100) substrate. Their magnetic properties are studied and rationalized by a combined scanning tunneling microscopy (STM) and density functional theory (DFT) work completed by model Hamiltonian studies. The chains are built using Fe and Mn atoms ontop of the Cu atoms along the N rows of the Cu2N surface. Here, we present results for FeMnx chains (x=1-6) emphasizing the evolution of the geometrical, electronic, and magnetic properties with chain size. By fitting our results to a Heisenberg Hamiltonian we have studied the exchange-coupling matrix elements J for different chains. For the shorter chains, x≤2, we have included spin-orbit effects in the DFT calculations, extracting the magnetic anisotropy energy. Our results are also fitted to a simple anisotropic spin Hamiltonian and we have extracted values for the longitudinal-anisotropy D and transversal-anisotropy E constants. These parameters together with the values for J allow us to compute the magnetic excitation energies of the system and to compare them with the experimental data.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevB.94.085406
URIhttp://hdl.handle.net/10261/159887
Identifiersdoi: 10.1103/PhysRevB.94.085406
issn: 2469-9950
e-issn: 2469-9969
Appears in Collections:(CFM) Artículos
(CIN2) Artículos
Files in This Item:
File Description SizeFormat 
FeMnchain.pdf893,39 kBAdobe PDFThumbnail
View/Open
Show full item record
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.