Non-stoichiometric magnetite and maghemite in the mature teeth of the chitonAcanthopleura hirtosa |
| |
| Authors: | T. G. St. Pierre L. A. Evans J. Webb |
| |
| Affiliation: | (1) School of Mathematical and Physical Sciences, Murdoch University, 6150 Perth, W.A., Australia |
| |
| Abstract: | Mature radula pieces from the chitonAcanthopleura hirtosa were studied using Mössbauer spectroscopy. The magnetite present in the radulae was found to have a distribution of Verwey transition temperatures in the range 85–100K. It was deduced that the magnetite was non-stoichiometric with an average formula Fe2.98O3. About 10% of the Fe in the radulae was in the form of maghemite and about 19% was in the form of paramagnetic or superparamagnetic phases. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
