Artificial frustrated spin systems as a playground to investigate collective magnetic phenomena and exotic states of matter

Magnetism Meeting
Start Date
14-12-2017 11:30
End Date
14-12-2017 12:30
Seminar room 036, Science Building
Speaker's name
Nicolas Rougemaille
Speaker's institute
Institut Néel, CNRS, Grenoble, France
Contact name
Claudine Roméro
Host name
Fabrice Wilhelm and Patrick Bruno
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Artificial spin ices (ASI) are systems designed to explore the intriguing physics observed in magnetically frustrated materials. Generally fabricated by using lithography techniques, they offer almost infinite possibilities to construct a wide variety of spin models which can be accessed experimentally in a controlled manner. Here, we investigate magnetic frustration effects in a thermally active ASI. The magnetic configurations we image reveal the fingerprints of a spin fragmentation process, a collective magnetic phenomenon predicted recently.

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