Document Detail

qPlus magnetic force microscopy in frequency-modulation mode with millihertz resolution.
MedLine Citation:
PMID:  22428108     Owner:  NLM     Status:  PubMed-not-MEDLINE    
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.
Maximilian Schneiderbauer; Daniel Wastl; Franz J Giessibl
Related Documents :
23290478 - Conspicuity of bone metastases on fast dixon-based multisequence whole-body mri: clinic...
7979128 - Anaesthetic considerations for magnetic resonance imaging.
15259368 - Antennae: the strongest magnetic part of the migratory ant.
17902698 - Detection of c-reactive protein based on immunoassay using antibody-conjugated magnetic...
18421688 - Fast prospective registration of in vivo mr images of trabecular bone microstructure in...
18467558 - The right and the good: distributive justice and neural encoding of equity and efficiency.
Publication Detail:
Type:  Journal Article     Date:  2012-02-29
Journal Detail:
Title:  Beilstein journal of nanotechnology     Volume:  3     ISSN:  2190-4286     ISO Abbreviation:  Beilstein J Nanotechnol     Publication Date:  2012  
Date Detail:
Created Date:  2012-03-19     Completed Date:  2012-08-23     Revised Date:  2013-05-29    
Medline Journal Info:
Nlm Unique ID:  101551563     Medline TA:  Beilstein J Nanotechnol     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  174-8     Citation Subset:  -    
Institute of Experimental and Applied Physics, University of Regensburg, 93040 Regensburg, Germany.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Analysis of fluid flow around a beating artificial cilium.
Next Document:  Quantitative multichannel NC-AFM data analysis of graphene growth on SiC(0001).