File talk:Formation Point Defect.png
(Redirected from File talk:Schottky defect.png)
The factual accuracy of this chemical structure is disputed
[edit]
Is this really a Schottky defect or a Frenkel defect? Matt (talk) 09:03, 12 June 2010 (UTC)
- Hi Matt! I agree with you: This picture rather shows a Frenkel, than a Schottky defekt. I would suggest to rename the file to “Frenkel defect.png”. Greetings, --Sponk (talk) 15:17, 15 June 2010 (UTC)
- Hi Guys. In my opinion some ion leaves his place in a solid but stil beeing in the solid describes the Frenkel defect. On the other side we have the Schottky defect where the ion leaves his place and also the solid. The arrow should shows this different. Instead staying in the solid the ion is gone away. Therefore i would suggest it is a Schottky defect. Safe cracker (talk)
- Hi, in my opinion, this picture shows either the Frenkel or the Schottky defect. Why? In the Schottky defect discribes pairs of point defects in an ionic crystal. In contrast this picture shows only an atom/ion that leaves it's place in the crystal lattice, creating a vacancy. If the atom/ion would now take on an interstitial site, it would be a Frenkel defect. In my opinion, the picture shows this fact not clear, because the atom/ion is represented outside of the 2-dimensional lattice. -- Cepheiden (talk) 17:08, 15 June 2010 (UTC)
- Since the infinity of this two-dimensional lattice is suggested by the continuation of the solid lattice lines, the pink atom/ion is (at least from my point of view) now taking up an interstitial site and the picture is thus showing a Frenkel defekt to me. But anyway, this graphic is not showing a Schottky defect, since that would be a paired defect in an ionic structure. If you, Safe cracker, are trying to visualize the formation of a point defect, I would still recommend renaming the file accordingly (e. g. Formation Point Defect.png, or the like). Greetings form Germany, --Sponk (talk) 06:38, 16 June 2010 (UTC)
- I´d recommend replacing this picture. A Schottky defect is defined as an ion being removed from the (then deformed) lattice to the surface, and a Frenkel defect is a an ion going to an interstitial place, creating two deformed places in the lattice. The picture is neither. --Maxus96 (talk) 12:46, 1 August 2010 (UTC)
- Schottky = "The defect forms when oppositely charged ions leave their lattice sites, creating vacancies. These vacancies are formed in stoichiometric units, to maintain an overall neutral charge in the ionic solid." A pair of ions not only one ion! In addition, a Schottky defect arises in a crystal lattice, which consists of several elements. This picture shows definitely no Schottky defect! --Cepheiden (talk) 18:42, 1 August 2010 (UTC)
- Maybe a Frenkel defect, but this picture shows not clear enough that the ion goes to an interstitial place. --Cepheiden (talk) 18:44, 1 August 2010 (UTC)
- I´d recommend replacing this picture. A Schottky defect is defined as an ion being removed from the (then deformed) lattice to the surface, and a Frenkel defect is a an ion going to an interstitial place, creating two deformed places in the lattice. The picture is neither. --Maxus96 (talk) 12:46, 1 August 2010 (UTC)
- Since the infinity of this two-dimensional lattice is suggested by the continuation of the solid lattice lines, the pink atom/ion is (at least from my point of view) now taking up an interstitial site and the picture is thus showing a Frenkel defekt to me. But anyway, this graphic is not showing a Schottky defect, since that would be a paired defect in an ionic structure. If you, Safe cracker, are trying to visualize the formation of a point defect, I would still recommend renaming the file accordingly (e. g. Formation Point Defect.png, or the like). Greetings form Germany, --Sponk (talk) 06:38, 16 June 2010 (UTC)
- Hi, in my opinion, this picture shows either the Frenkel or the Schottky defect. Why? In the Schottky defect discribes pairs of point defects in an ionic crystal. In contrast this picture shows only an atom/ion that leaves it's place in the crystal lattice, creating a vacancy. If the atom/ion would now take on an interstitial site, it would be a Frenkel defect. In my opinion, the picture shows this fact not clear, because the atom/ion is represented outside of the 2-dimensional lattice. -- Cepheiden (talk) 17:08, 15 June 2010 (UTC)
Now that the file has been renamed, I have removed the “disputed chem” tag. Greetings, --Sponk (talk) 15:22, 5 August 2010 (UTC)
