Crystallographic and magnetic structure of RbCoCl3 · 2 D2O

The crystallographic and magnetic structure of RbCoCl3 · 2 D2O were determined mainly by means of neutron diffraction measurements. Below TN = 2.79 K the magnetic moments are ordered in a canted antiferromagnetic pattern. A meta-magnetic phase transition is observed at unusually small field values (H = 18 Oe at T = 2 K)

Large magnetoresistance using hybrid spin filter devices

A magnetic "spin filter" tunnel barrier, sandwiched between a non-magnetic metal and a magnetic metal, is used to create a new magnetoresistive tunnel device, somewhat analogous to an optical polarizer-analyzer configuration. The resistance of these trilayer structures depends on the relative magnetization orientation of the spin filter and the ferromagnetic electrode. The spin filtering in this configuration yields a previously unobserved magnetoresistance effect, exceeding 100%.Comment: 3.5 pages, 3 figures, submitted to Appl. Phys. Let

Evaluation "Angels and Demons" (WP-116)

One way to generate the money needed for sustainable innovation is by consumer choosing freely for sustainable products. This way, consumer choice pays for the innovative production method. This requires consumer willingness to buy these products. Willingness to buy is however not so easily measured as the intentions to buy may only partially predict actual purchase behaviour. There is a gap between what consumer say they want, and what they do in practice. For the specific case of sustainable production, consumers often say they are very positive about sustainable products (angelic opinion), yet in their daily behaviour they frequently tend to choose convenient and cheap products (demonic behaviour)

Improving Research into Models of Maternity Care to Inform Decision Making.

In a Perspective, Ank de Jonge and Jane Sandall discuss research on models of maternity care led by midwives