Comparative Study of Room‐Temperature Ferromagnetism in Cu‐Doped ZnO Nanowires Enhanced by Structural Inhomogeneity

Abstract

Cu-doped ZnO nanowires are prepared using two different approaches, and a comparative study of their magnetic properties is carried out. Compared with direct growth using a conventional vapor transport method, annealing a ZnO/Cu core/shell structure leads to significantly enhanced room-temperature ferromagnetism (see figure). Structural inhomogeneity boosts the ferromagnetism by promoting the formation of bound magnetic polarons. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.