High pressure can be exploited for the synthesis of new metastable materials, as it favors high oxidation states, unusual coordination numbers and stabilizes particularly dense crystallographic structures. At the IMEM-CNR institute in Parma we study bismuth based magnetoelectric (i.e. ferroelectric and ferromagnetic) manganites synthetized by using a multianvil apparatus which allows the application of high hydrostatic pressure. BiMn7O12 is an interesting quadruple perovskite, with the evidence of magnetoelectric coupling below 55K, while several other promising compounds belong to the Bi2MMnO6 (M=transition metal) series, where the possible presence of high temperature magnetoelectric interactions can be studied by an appropriate choice of the M ion.
Use of high pressure for the synthesis of complex perovskites
D Delmonte;
2012
Abstract
High pressure can be exploited for the synthesis of new metastable materials, as it favors high oxidation states, unusual coordination numbers and stabilizes particularly dense crystallographic structures. At the IMEM-CNR institute in Parma we study bismuth based magnetoelectric (i.e. ferroelectric and ferromagnetic) manganites synthetized by using a multianvil apparatus which allows the application of high hydrostatic pressure. BiMn7O12 is an interesting quadruple perovskite, with the evidence of magnetoelectric coupling below 55K, while several other promising compounds belong to the Bi2MMnO6 (M=transition metal) series, where the possible presence of high temperature magnetoelectric interactions can be studied by an appropriate choice of the M ion.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
