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Despite this complexity, surprisingly, the magnetoresistance was found to be extremely simple.

Buoyed by this success, Prof Hussey resurrected Xu and Wakeham's magnetoresistance data and showed them to Dr Chudzinski.

The debut of antiferromagnets in technology was made possible through the 1988 discovery of the giant magnetoresistance effect2,3, which resulted in the 2007 Nobel Prize in Physics.

Antiferromagnets proved to be essential in sensors that use the giant magnetoresistance effect.

For me, it was also the revelation of a nanostructure in which I could test some of my own ideas about magnetoresistance.