Tiny wires could provide a big energy boost

Wearable electronic devices for health and fitness monitoring are a rapidly growing area of consumer electronics; one of their biggest limitations is the capacity of their tiny batteries to deliver enough power to transmit data. Now, researchers at MIT and in Canada have found a promising new approach to delivering the short but intense bursts of power...

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Crystal structure and magnetism - new insight into the fundamentals of solid state physics

A team at Helmholtz Zentrum Berlin (HZB) has carried out the first detailed study of how magnetic and geometric ordering mutually influence one another in crystalline samples of spinel. To achieve this, the group synthesised a series of mixed crystals with the chemical formula Ni1-xCuxCr2O4 in which the element nickel was successively replaced by copper....

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New technique enables magnetic patterns to be mapped in 3D

An international collaboration has succeeded in using synchrotron light to detect and record the complex 3D magnetisation in wound magnetic layers. This technique could be important in the development of devices that are highly sensitive to magnetic fields, such as in medical diagnostics for example. Their results are published now in ("Retrieving...

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