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Schmid, Martin ; Mannhart, Jochen ; Giessibl, Franz J.

Searching atomic spin contrast on nickel oxide (001) by force microscopy

Schmid, Martin, Mannhart, Jochen and Giessibl, Franz J. (2008) Searching atomic spin contrast on nickel oxide (001) by force microscopy. Physical Review B (PRB) 77 (4), 045402-1-045402-6.

Date of publication of this fulltext: 05 Jul 2012 06:04
Article
DOI to cite this document: 10.5283/epub.25269


Abstract

The (001) surface of NiO, an antiferromagnet at room temperature, was investigated under ultrahigh vacuum conditions with frequency modulation atomic force microscopy. The antiferromagnetic coupling between ions leads to a spin superstructure on (001) surfaces. Exchange interaction between the probe of a force microscope and the NiO (001) surface should allow us to image spin superstructures in ...

The (001) surface of NiO, an antiferromagnet at room temperature, was investigated under ultrahigh vacuum conditions with frequency modulation atomic force microscopy. The antiferromagnetic coupling between ions leads to a spin superstructure on (001) surfaces. Exchange interaction between the probe of a force microscope and the NiO (001) surface should allow us to image spin superstructures in real space. The surface was imaged with three different probing tips: nonmagnetic W tips, ferromagnetic Co tips, and antiferromagnetic NiO tips-and atomic resolution was achieved with all three of them in various distance regimes and in several channels. Atomic resolution is obtained with all tips, but evidence for spin contrast is lacking although oscillation amplitudes in the angstrom regime have been used, where optimal signal-to-noise ratio is expected.



Involved Institutions


Details

Item typeArticle
Journal or Publication TitlePhysical Review B (PRB)
Publisher:AMER PHYSICAL SOC
Open Access Type:Due to SHERPA/RoMEO
Place of Publication:COLLEGE PK
Volume:77
Number of Issue or Book Chapter:4
Page Range:045402-1-045402-6
Date2 January 2008
InstitutionsPhysics > Institute of Experimental and Applied Physics > Chair Professor Giessibl > Group Franz J. Giessibl
Identification Number
ValueType
10.1103/PhysRevB.77.045402DOI
Classification
NotationType
81.65.CfPACS
81.65.PsPACS
KeywordsNIO(001) SURFACE; EXCHANGE FORCE; FE FILMS; 1ST-PRINCIPLES; SPECTROSCOPY; NIO(100); TIP;
Dewey Decimal Classification500 Science > 530 Physics
StatusPublished
RefereedYes, this version has been refereed
Created at the University of RegensburgNo
URN of the UB Regensburgurn:nbn:de:bvb:355-epub-252693
Item ID25269

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