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  Structural and magnetic properties of FeMnx chains (x=1–6) supported on Cu2N / Cu (100)

Choi, D.-J., Robles, R., Gauyacq, J.-P., Ternes, M., Loth, S., & Lorente, N. (2016). Structural and magnetic properties of FeMnx chains (x=1–6) supported on Cu2N / Cu (100). Physical Review B, 94(8): 085406. doi:10.1103/PhysRevB.94.085406.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-F017-A Version Permalink: http://hdl.handle.net/21.11116/0000-0004-917C-D
Genre: Journal Article

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PhysRevB.94.085406.pdf (Publisher version), 894KB
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PhysRevB.94.085406.pdf
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Copyright Date:
2016
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© American Physical Society

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http://arxiv.org/abs/1605.05464 (Preprint)
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http://dx.doi.org/10.1103/PhysRevB.94.085406 (Publisher version)
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 Creators:
Choi, Deung-Jang1, Author
Robles, Roberto2, Author
Gauyacq, Jean-Pierre3, Author
Ternes, Markus4, Author
Loth, Sebastian4, 5, Author              
Lorente, Nicolas6, 7, Author
Affiliations:
1CIC nanoGUNE, Tolosa Hiribidea 78, 20018 Donostia-San Sebastian, Spain, ou_persistent22              
2Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology, Campus UAB, Bellaterra, 08193 Barcelona, Spain, ou_persistent22              
3Institut des Sciences Moléculaires d'Orsay, ISMO, CNRS, Université Paris-Sud, Université Paris-Saclay, Bâtiment 351, 91405 Orsay Cedex, France, ou_persistent22              
4Max Planck Institute for Solid State Research, ou_persistent22              
5Dynamics of Nanoelectronic Systems, Independent Research Groups, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_1938290              
6Centro de Fisica de Materiales, CFM/MPC (CSIC-UPV/EHU), Paseo Manuel de Lardizabal 5, 20018 Donostia-San Sebastian, Spain, ou_persistent22              
7Donostia International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, 20018 Donostia-San Sebastian, Spain, ou_persistent22              

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Free keywords: Condensed Matter; Mesoscale and Nanoscale Physics; PACS numbers: 68.37.Ef, 71.15.Nc, 73.23.-b, 72.25.-b
 Abstract: Heterogeneous 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.

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Language(s): eng - English
 Dates: 2016-05-182016-05-182016-08-052016-08-15
 Publication Status: Published in print
 Pages: 9
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: arXiv: 1605.05464
DOI: 10.1103/PhysRevB.94.085406
 Degree: -

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Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 94 (8) Sequence Number: 085406 Start / End Page: - Identifier: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008