Rotational hysteresis losses of 10 nm gamma-Fe2O3 particles at 130 K of a water-based ferrofluid and of particles produced by bacteria

Data of rotational hysteresis losses W-RH, at 130 K are reported for 10 nm gamma-Fe2O3 particles of a ferrofluid and of 10 nm particles, intermediate in composition between Fe3O4 and gamma-Fe2O3, produced by bacteria. From high-field data it is concluded that for both kinds of particles there are either centers or surface areas of high anisotropy giving rise to exchange interactions.

@article{id231,
  author = {Keller, R. and Schmidbauer, E. and Hanzlik, H. and Petersen, N.},
  journal = { Journal of Magnetism and Magnetic Materials},
  language = {en},
  number = {2-3},
  pages = {327-330},
  title = {Rotational hysteresis losses of 10 nm gamma-Fe2O3 particles at 130 K of a water-based ferrofluid and of particles produced by bacteria},
  volume = {162},
  year = {1996},
}

%O Journal Article
%A Keller, R.
%A Schmidbauer, E.
%A Hanzlik, H.
%A Petersen, N.
%J  Journal of Magnetism and Magnetic Materials
%G en
%N 2-3
%P 327-330
%T Rotational hysteresis losses of 10 nm gamma-Fe2O3 particles at 130 K of a water-based ferrofluid and of particles produced by bacteria
%V 162
%D 1996