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High-resolution crystallography: Investigating a new permanent magnet

When high resolution matters: Cu Kα1 radiation data reveal subtle structural changes in MnBi

Oxford PheniX

Permanent magnets are everywhere in our daily life: on our fridge, in our televisions, telephones, computers, audio systems or automobiles. The technology is already very well developed and many materials including SmCo and Nd2Fe14B have been investigated. So why try to find new materials?

Here we present a detailed investigation of the crystal structure of MnBi, one of the most promising future rare earth-free materials for applications as a permanent magnet. Full details of the investigation are published by McGuire et al. Following is a summary of their findings plus some additional results demonstrating the powerfulness of the use of Kα1 radiation.

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