Talk:Strontium titanate

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[edit] centrosymmetric ferroelectric?

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)

[edit] Quantum paraelectric

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)

[edit] Brittle

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)