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Schneiderbauer, Maximilian ; Wastl, Daniel S. ; Giessibl, Franz J.

qPlus magnetic force microscopy in frequencymodulation mode with millihertz resolution

Schneiderbauer, Maximilian, Wastl, Daniel S. und Giessibl, Franz J. (2012) qPlus magnetic force microscopy in frequencymodulation mode with millihertz resolution. Beilstein Journal of Nanotechnology 3, S. 174-178.

Veröffentlichungsdatum dieses Volltextes: 13 Mrz 2012 11:39
Artikel
DOI zum Zitieren dieses Dokuments: 10.5283/epub.23531


Zusammenfassung

Magnetic force microscopy (MFM) allows one to image the domain structure of ferromagnetic samples by probing the dipole forces between a magnetic probe tip and a magnetic sample. The magnetic domain structure of the sample depends on the alignment of the individual atomic magnetic moments. It is desirable to be able to image both individual atoms and domain structures with a single probe. ...

Magnetic force microscopy (MFM) allows one to image the domain structure of ferromagnetic samples by probing the dipole forces between a magnetic probe tip and a magnetic sample. The magnetic domain structure of the sample depends on the alignment of the individual atomic magnetic moments. It is desirable to be able to image both individual atoms and domain structures with a single probe. However, the force gradients of the interactions responsible for atomic contrast and those causing domain contrast are orders of magnitude apart, ranging from up to 100 Nm(-1) for atomic interactions down to 0.0001 Nm(-1) for magnetic dipole interactions. Here, we show that this gap can be bridged with a qPlus sensor, with a stiffness of 1800 Nm(-1) (optimized for atomic interaction), which is sensitive enough to measure millihertz frequency contrast caused by magnetic dipole-dipole interactions. Thus we have succeeded in establishing a sensing technique that performs scanning tunneling microscopy, atomic force microscopy and MFM with a single probe.



Beteiligte Einrichtungen


Details

DokumentenartArtikel
Titel eines Journals oder einer ZeitschriftBeilstein Journal of Nanotechnology
Verlag:BEILSTEIN-INSTITUT
Ort der Veröffentlichung:FRANKFURT AM MAIN
Band:3
Seitenbereich:S. 174-178
Datum29 Februar 2012
InstitutionenPhysik > Institut für Experimentelle und Angewandte Physik > Lehrstuhl Professor Giessibl > Arbeitsgruppe Franz J. Giessibl
Identifikationsnummer
WertTyp
10.3762/bjnano.3.18DOI
Stichwörter / KeywordsQUARTZ TUNING FORK; SCANNING TUNNELING MICROSCOPE; ATOMIC-RESOLUTION; CANTILEVERS; SURFACE; hard disc; high-stiffness cantilever; magnetic force microscopy; qPlus
Dewey-Dezimal-Klassifikation500 Naturwissenschaften und Mathematik > 530 Physik
StatusVeröffentlicht
BegutachtetJa, diese Version wurde begutachtet
An der Universität Regensburg entstandenJa
URN der UB Regensburgurn:nbn:de:bvb:355-epub-235317
Dokumenten-ID23531

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