A new temperature scale T* in lead-based relaxor systems

Autor:	Dkhil, B., Gemeiner, P., Al-Barakaty, A., Bellaiche, L., Dulkin, E., Mojaev, E., Roth, M.
Rok vydání:	2009
Předmět:	Condensed Matter - Materials Science Condensed Matter - Strongly Correlated Electrons
Zdroj:	Physical Review B 80, 064103 (2009)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.80.064103
Popis:	Via a combination of various experimental and theoretical techniques, a peculiar, identical temperature scale T* is found to exist in all complex lead-based relaxor ferroelectrics. T* corresponds to a nanoscale phase transition due to random fields. Interestingly, T* also exists in other oxides with extraordinary properties, such as giant magnetoresistivity or superconductivity. By analogy with such latter systems, the giant piezoelectricity related to relaxors might originate from proximity competing states effect. Comment: 15page with 4 figures, submitted
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0901.2604 Zobrazit plný text záznamu View this record from Arxiv