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Spin Resolution and Evidence for Superexchange on NiO(001) Observed by Force Microscopy

Pielmeier, Florian and Giessibl, Franz J. (2013) Spin Resolution and Evidence for Superexchange on NiO(001) Observed by Force Microscopy. Physical Review Letters (PRL) 110 (26), 266101-1-266101-5.

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Date of publication of this fulltext: 26 Jun 2013 06:12

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Other URL: http://journals.aps.org/prl/pdf/10.1103/PhysRevLett.110.266101


Abstract

The spin order of the nickel oxide (001) surface is resolved, employing noncontact atomic force microscopy at 4.4 K using bulk Fe and SmCo tips mounted on a qPlus sensor that oscillates at sub-50 pm amplitudes. The spin-dependent signal is hardly detectable with Fe tips. In contrast, SmCo tips yield a height contrast of 1.35 pm for Ni ions with opposite spins. SmCo tips even show a small height ...

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Item type:Article
Date:24 June 2013
Institutions:Physics > Institute of Experimental and Applied Physics > Chair Professor Giessibl > Group Franz J. Giessibl
Projects:SFB 689: Spinphänomene in reduzierten Dimensionen
Identification Number:
ValueType
10.1103/PhysRevLett.110.266101DOI
1304.6515v2arXiv ID
Classification:
NotationType
68.37.PsPACS
Keywords:Spin resolution, spin contrast, nickel oxide, NiO(001), AFM, superexchange, exchange force, magnetocrystalline anisotropy, magnetic exchange force microscopy
Dewey Decimal Classification:500 Science > 530 Physics
Status:Published
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Item ID:28418
Owner only: item control page

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