Talk:Strontium titanate

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Centrosymmetric ferroelectric?[edit]

How can a material be simultaneously ferroelectric and centrosymmetric. Those are mutually exclusive. The intro text should probably be reworded. Polaron | Talk 03:17, 1 July 2006 (UTC)[reply]

Quantum paraelectric[edit]

SrTiO3 is known as a quantum paraelectric which remains in a paraelectric state even at 0K due to the suppression of ferroelectric instability by quantum fluctuation. [1] STO has a latent ferroelectricity. Weak perturbation such as uniaxial stress impurity or DC bias easily induces a ferroelectricc transition.[2]

[1]Müller et al., PRB 19, 3593 (1979) [2]Hemberger et al., JPCondMatter 8, 4673 (1996)

Brittle[edit]

Well, it seems that it's not brittle anymore. See: Phys Rev Lett. 2001 Aug 20;87 (8):085505 11497958 (P,S,E,B)

~~LUMO —Preceding unsigned comment added by 129.175.86.93 (talk) 14:31, 19 March 2008 (UTC)[reply]

Lattice constant[edit]

Whould it be e good idea to show a lattice constant hear? I found a good value:

a= 3.9051(8) Angstroem

PRB (1995), Ligny/Richet, Vol. 53, No. 6, p. 3013

Maybe its to special, because it is for clean STO (without any doping).

The other possibility is to use the well known Value of 3.905.

Broken Link[edit]

The External Link citing the deYoung exhibit of the electron micrograph is broken. --Dmummert (talk) 23:48, 18 November 2010 (UTC)[reply]

Hardness and density[edit]

Properties says the density and hardness differ between the natural and synthetic - Can anyone say why ? Just different crystal structures ? or impurities ? - Rod57 (talk) 00:20, 20 October 2012 (UTC)[reply]

Resistivity units error[edit]

In the article, the resistivity is given in ohm/cm, while the units of resistivity should be in ohm*cm. Perhaps the reference was misinterpreted? I cannot view the article, so someone else will need to fix this.72.177.226.134 (talk) 14:27, 18 November 2013 (UTC)[reply]

Removed This was just added today. I've taken it out for now and left a message explaining what happened to the person who added it. Jackmcbarn (talk) 14:36, 18 November 2013 (UTC)[reply]

i'd reply to your message; but i don't know how. You're right. Should be Ohm-cm. http://www.espimetals.com/index.php/technical-data/248-strontium-titanate. i'd update the article, but i don't want to start a holy war today. The specific resistivity of Strontium Titanate is over 10^7 Ohm-cm (in the dark) — Preceding unsigned comment added by Pauladin (talk • contribs) 15:04, 18 November 2013‎ (UTC)[reply]

The reference you gave says 10^9 rather than 10^7, so I've restored it with that value. Jackmcbarn (talk) 15:09, 18 November 2013 (UTC)[reply]

"Disused as jewelry"[edit]

I came across "Fabulite Strontium Titanate" on Jewelry TV and am watching it right now as I type this. The article needs to be updated that these uses and that name are NOT dis-used.

Web links:

https://www.jtv.com/search/?Ntt=fabulite&type=products&N=4243964577&Ntk=All

https://www.jtv.com/product/white-lab-created-strontium-titanate-rhodium-over-sterling-silver-ring-4-76ctw/JUH073

1st link is a search for "Fabulite"; 2nd link is the ring on the air as I write this so it may expire. — Preceding unsigned comment added by 68.14.246.101 (talk) 02:51, 13 October 2019 (UTC)[reply]

I was just looking around and saw the same thing. Whomever desires this name to not be applicable isn't paying attention. I'll make an edit. 2601:182:4381:E60:50C1:542D:AD23:213A (talk) 17:43, 18 February 2021 (UTC)[reply]