TY - JOUR
T1 - Effective particle magnetic moment of multi-core particles
AU - Ahrentorp, F.
AU - Astalan, A.
AU - Blomgren, J.
AU - Jonasson, C.
AU - Wetterskog, E.
AU - Svedlindh, P.
AU - Lak, A.
AU - Ludwig, F.
AU - Van IJzendoorn, L.J.
AU - Westphal, F.
AU - Grüttner, C.
AU - Gehrke, N.
AU - Gustafsson, S.
AU - Olsson, E.
AU - Johansson, C.
PY - 2015/4/15
Y1 - 2015/4/15
N2 - In this study we investigate the magnetic behavior of magnetic multi-core particles and the differences in the magnetic properties of multi-core and single-core nanoparticles and correlate the results with the nanostructure of the different particles as determined from transmission electron microscopy (TEM). We also investigate how the effective particle magnetic moment is coupled to the individual moments of the single-domain nanocrystals by using different measurement techniques: DC magnetometry, AC susceptometry, dynamic light scattering and TEM. We have studied two magnetic multi-core particle systems - BNF Starch from Micromod with a median particle diameter of 100 nm and FeraSpin R from nanoPET with a median particle diameter of 70 nm - and one single-core particle system - SHP25 from Ocean NanoTech with a median particle core diameter of 25 nm.
AB - In this study we investigate the magnetic behavior of magnetic multi-core particles and the differences in the magnetic properties of multi-core and single-core nanoparticles and correlate the results with the nanostructure of the different particles as determined from transmission electron microscopy (TEM). We also investigate how the effective particle magnetic moment is coupled to the individual moments of the single-domain nanocrystals by using different measurement techniques: DC magnetometry, AC susceptometry, dynamic light scattering and TEM. We have studied two magnetic multi-core particle systems - BNF Starch from Micromod with a median particle diameter of 100 nm and FeraSpin R from nanoPET with a median particle diameter of 70 nm - and one single-core particle system - SHP25 from Ocean NanoTech with a median particle core diameter of 25 nm.
KW - Magnetic nanoparticles
KW - Magnetic relaxation
KW - Multi-core particles
KW - Single-core particles
UR - http://www.scopus.com/inward/record.url?scp=85027926144&partnerID=8YFLogxK
U2 - 10.1016/j.jmmm.2014.09.070
DO - 10.1016/j.jmmm.2014.09.070
M3 - Article
AN - SCOPUS:85027926144
SN - 0304-8853
VL - 380
SP - 221
EP - 226
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
ER -