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Front Cover: First‐Principles Calculations and Optical Absorption Spectrum of a Light‐Colored Aluminum‐Substituted ε‐Iron Oxide Magnet (Eur. J. Inorg. Chem. 03/2017)
Author(s) -
Nasu Tomomichi,
Yoshikiyo Marie,
Tokoro Hiroko,
Namai Asuka,
Ohkoshi Shinichi
Publication year - 2017
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201601557
Subject(s) - colored , cover (algebra) , front cover , chemistry , magnet , oxide , absorption (acoustics) , iron oxide , band gap , absorption spectroscopy , polymer , photochemistry , optics , optoelectronics , organic chemistry , materials science , composite material , physics , mechanical engineering , quantum mechanics , engineering
The cover picture shows the crystal structure, density of states, UV/Vis spectrum, and a photograph of a highly dispersed polymer solution of Al‐substituted ε‐iron oxide. First‐principles calculation implies that ε‐Al 0.5 Fe 1.5 O 3 has a wide band gap, and the observed UV/Vis spectrum of the dispersed ε‐Al 0.66 Fe 1.34 O 3 solution indicates a very light color. These results mean that Al‐substitution lightens the color of ε‐iron oxide. Such a light‐colored magnet is expected to find application as colored magnetic toner for color copy printing. Details are discussed in the Communication by S. Ohkoshi et al. on page 531 ff (DOI: 10.1002/ejic.201601169 ). For more on the story behind the cover research, see the Cover Profile (DOI: 10.1002/ejic.201601558 ).