XLV. On permanent magnetism

Aligned two-phase magnets: Permanent magnetism of the future? (invited)

Permanent Magnetism in Thiol Capped Nanoparticles, Gold and ZnO

In spite of the diamagnetic behavior exhibited by bulk ZnO and Au, a ferromagnetic-like behavior is induced in nanoparticles of both systems by appropriate surface functionalization. By capping with thiol derivatized molecules, magnetic hysteresis is observed even at room temperature, whereas the magnetization has a very little temperature dependence. Capping induces an alteration of their elec...

Xlv Kzm Zakopane 2016

Xlv. Note on Urinary Tides and Excretory Rhythm

Thoughts on galactic magnetism ∗

Magnetic fields in spiral galaxies have strengths of order few 10−6G, and are coherent on scales of several kpc [1]. In several disk galaxies, like M51 and NGC 6946, they are also highly correlated (or anti-correlated) with the optical spiral arms. How do such ordered, large-scale fields arise? One possibility is dynamo amplification of a weak but nonzero seed field ∼ 10−19 − 10−23G, provided t...