If you are experiencing problems downloading PDF or HTML fulltext, our helpdesk recommend clearing your browser cache and trying again. If you need help in clearing your cache, please click here . Still need help? Email help@ingentaconnect.com

Ordering, Incommensuration, and Phase Transitions in Pyrrhotite Part I: A TEM Study of Fe 7 S 8

The full text article is not available for purchase.

The publisher only permits individual articles to be downloaded by subscribers.

Abstract:

Vacancy ordering in synthetic Fe 7 S 8 at elevated temperature was studied using transmission electron microscopy. Two known idealized structures of Fe 7 S 8 are monoclinic and trigonal based upon ABCD and ABC stacking of Kagome nets, respectively. The TEM results indicate a tendency for Fe 7 S 8 to transform from monoclinic to trigonal between 200 and 300#&176;C. A disordering of vacancies occurs above 300#&176;C and yields a partially filled CdI 2 -type structure. The Curie magnetic transition is associated with this vacancy-ordering transition. On slow cooling, it was found that the vacancies are ordered such as to tend to restore the Kagome nets and lead to ABCD and ABC layering.

Document Type: Research Article

Affiliations: 1: Ames Laboratory and Department of Chemistry, Iowa State University, Ames, Iowa, 50011 2: Ames Laboratory and Department of Geological and Atmospheric Sciences, Iowa State University, Ames, Iowa, 50011

Publication date: July 1, 1996

Related content

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more