Refine my results

Crystallographic—magnetic correlations in single-crystal haemo-ilmenite: new evidence for lamellar magnetism

Robinson, P. ; Heidelbach, F. ; Hirt, A. M. ; McEnroe, S. A. ; Brown, L. L.

In: Geophysical Journal International, 2006, vol. 165, no. 1, p. 17-31

New directional archeomagnetic data of burned cave sediments from Switzerland and geomagnetic field variations in Central Europe

Kapper, K. L. ; Donadini, F. ; Mauvilly, M. ; Panovska, S. ; Hirt, A. M.

In: Geophysical Journal International, 2014, vol. 198, no. 2, p. 1208-1221

A lock-in-based method to examine the thermal signatures of magnetic nanoparticles in the liquid, solid and aggregated states

Monnier, Christophe A. ; Lattuada, Marco ; Burnand, David ; Crippa, F. ; Martinez-Garcia, J. C. ; Hirt, A. M. ; Rothen-Rutishauser, B. ; Bonmarin, M. ; Petri-Fink, Alke

In: Nanoscale, 2016, vol. 8, no. 27, p. 13321–13332

We propose a new methodology based on lock-in thermography to study and quantify the heating power of magnetic nanoparticles. Superparamagnetic iron oxide nanoparticles exposed to a modulated alternating magnetic field were used as model materials to demonstrate the potency of the system. Both quantitative and qualitative information on their respective heating power was extracted at high...

Magnetic properties of silica coated spindle-type hematite particles

Reufer, Mathias ; Dietsch, Hervé ; Gasser, Urs ; Grobéty, Bernard ; Hirt, A. M. ; Malik, Vivek Kumar ; Schurtenberger, Peter

In: Journal of Physics: Condensed Matter, 2011, vol. 23, no. 6, p. 065102

Magnetic properties of particles are generally determined from randomly oriented ensembles and the influence of the particle orientation on the magnetic response is neglected. Here, we report on the magnetic characterization of anisotropic spindle- type hematite particles. The easy axis of magnetization is within the basal plane of hematite, which is oriented perpendicular to the spindle axis....