|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'504'585
Articles rated: 2609
24 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Real Space Imaging of the Verwey Transition at the (100) Surface of Magnetite | | Juan de la Figuera
; Zbynek Novotny
; Martin Setvin
; Tijiang Liu
; Zhiqiang Mao
; Gong Chen
; Alpha T. N'Diaye
; Michael Schmid
; Ulrike Diebold
; Andreas K. Schmid
; Gareth S. Parkinson
; | | Date: |
4 Oct 2013 | | Abstract: | Effects of the Verwey transition on the (100) surface of magnetite were
studied using scanning tunelling microscopy and spin polarized low-energy
electron microsccopy. On cooling through the transition temperature Tv, the
initially flat surface undergoes a roof-like distortion with a periodicity of
~0.5 um due to ferroelastic twinning within monoclinic domains of the
low-temperature monoclinic structure. The monoclinic c axis orients in the
surface plane, along the [001]c directions. At the atomic scale, the
charge-ordered sqrt2xsqrt2R45 reconstruction of the (100) surface is
unperturbed by the bulk transition, and is continuous over the twin boundaries.
Time resolved low-energy electron microscopy movies reveal the structural
transition to be first-order at the surface, indicating that the bulk
transition is not an extension of the Verwey-like sqrt2xsqrt2R45
reconstruction. Although conceptually similar, the charge-ordered phases of the
(100) surface and sub-Tv bulk of magnetite are unrelated phenomena. | | Source: | arXiv, 1310.1373 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER