Premium
Hollow Spheres to Nanocups: Tuning the Morphology and Magnetic Properties of Single‐Crystalline α‐Fe 2 O 3 Nanostructures
Author(s) -
Jagadeesan Dinesh,
Mansoori Uzma,
Mandal Pranab,
Sundaresan Athinarayanan,
Eswaramoorthy Muthusamy
Publication year - 2008
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200802626
Subject(s) - spheres , hematite , materials science , morphology (biology) , nanostructure , nanocrystal , nanotechnology , crystallography , condensed matter physics , chemistry , physics , metallurgy , geology , paleontology , astronomy
A bottom‐up approach has been used to tune the morphology of single‐crystalline hematite from hollow spheres to nanocups. The mechanism involves the formation of nanocups through buckling of the spheres, similar to a deflated ball (see picture). As the shape changes, there is a drastic change in magnetic properties.