Nanomagnetic materials

摘要

A memory element comprising nanomagnets having a rotational symmetry selected in order to provide high remanence and a suitable coercivity. <??>There is also a sensor element comprising nanomagnets having a rotational symmetry selected such that they are superparamagnetic and exhibit substantially zero hysteresis so that a magnetisation of the nanomagnets depends only on the current value of applied field and not on the field history. <IMAGE>