All-in-all-out magnetic domain wall conduction in a pyrochlore iridate heterointerface

Metallic surface states emerging at all-in-all-out type antiferromagnetic domain walls in bulk pyrochlore iridates have recently been observed. Such bulk crystals, however, inevitably contain huge amounts of the domains at random, and so it is quite challenging to investigate and utilize these novel surface conducting states. The results presented here are for a pyrochlore iridate heterointerface, which is realized by an advanced thin film...