The degree of B/B′ alternate cation order is known to heavily influence the magnetic properties of A2BB′O6 double perovskites although the nature of such disorder has never been critically studied. Our detailed x-ray absorption fine structure studies in conjunction with synchrotron radiation x-ray diffraction experiments on polycrystalline Sr2FeMoO6 samples with various degrees of disorder reveal that a very high degree of short range order is preserved even in samples with highly reduced long range chemical order. Based on these experimental results and with the help of detailed structural simulations, we are able to model the nature of the disorder in this important class of materials and discuss the consequent implications on its physical properties.

Meneghini, C., Sugata, R., F., L., F., B., Mobilio, S., D. D., S. (2009). The nature of disorder in ordered double perovskite, Sr2FeMoO6 oxides,. PHYSICAL REVIEW LETTERS, 103, 046403 [10.1103/PhysRevLett.103.046403].

The nature of disorder in ordered double perovskite, Sr2FeMoO6 oxides,

MENEGHINI, CARLO;MOBILIO, Settimio;
2009-01-01

Abstract

The degree of B/B′ alternate cation order is known to heavily influence the magnetic properties of A2BB′O6 double perovskites although the nature of such disorder has never been critically studied. Our detailed x-ray absorption fine structure studies in conjunction with synchrotron radiation x-ray diffraction experiments on polycrystalline Sr2FeMoO6 samples with various degrees of disorder reveal that a very high degree of short range order is preserved even in samples with highly reduced long range chemical order. Based on these experimental results and with the help of detailed structural simulations, we are able to model the nature of the disorder in this important class of materials and discuss the consequent implications on its physical properties.
Meneghini, C., Sugata, R., F., L., F., B., Mobilio, S., D. D., S. (2009). The nature of disorder in ordered double perovskite, Sr2FeMoO6 oxides,. PHYSICAL REVIEW LETTERS, 103, 046403 [10.1103/PhysRevLett.103.046403].
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/117376
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 131
  • ???jsp.display-item.citation.isi??? 126
social impact