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Titolo:
High-pressure and-temperature synthesis and characterization of mixed valence perovskite oxides LaTi1-xMgxO3
Autore:
Miao, JP; Li, LP; Song, YB; Xu, DP; Lu, Z; Su, WH;
Indirizzi:
NE Normal Univ, Inst Theoret Phys, Changchun, Peoples R China NE Normal Univ Changchun Peoples R China ys, Changchun, Peoples R China Jilin Univ, Dept Phys, Changchun 130023, Peoples R China Jilin Univ Changchun Peoples R China 130023 chun 130023, Peoples R China Acad Sinica, Changchun Inst Appl Chem, Key Lab Rare Earth Chem & Phys, Changchun 130022, Peoples R China Acad Sinica Changchun Peoples R China 130022 hun 130022, Peoples R China Acad Sinica, Int Ctr Mat Phys, Shenyang 110015, Peoples R China Acad Sinica Shenyang Peoples R China 110015 yang 110015, Peoples R China CCAST, World Lab, Ctr Condensed Matter & Radiat Phys, Beijing 100080, Peoples R China CCAST Beijing Peoples R China 100080 ys, Beijing 100080, Peoples R China
Titolo Testata:
MATERIALS CHEMISTRY AND PHYSICS
fascicolo: 3, volume: 62, anno: 2000,
pagine: 226 - 229
SICI:
0254-0584(20000202)62:3<226:HASACO>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Keywords:
high-pressure and-temperature synthesis; LaTi(1-x)MgxO(3) EPR; mixed valence;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
8
Recensione:
Indirizzi per estratti:
Indirizzo: Miao, JP NE Normal Univ, Inst Theoret Phys, Changchun, Peoples R China NE Normal Univ Changchun Peoples R China chun, Peoples R China
Citazione:
J.P. Miao et al., "High-pressure and-temperature synthesis and characterization of mixed valence perovskite oxides LaTi1-xMgxO3", MATER CH PH, 62(3), 2000, pp. 226-229

Abstract

Perovskite oxides LaTi1-xMgxO3 (x = 0.25, 0.5) were synthesized using high-pressure and-temperature method. LaTi0.75Mg0.25O3 is a new compound. This new synthesis route has some advantages. XRD analysis showed that the x = 0.25 sample belongs to cubic perovskite-type structure and the a = 0.5 sample belongs to orthorhombic perovskite-type structure. EPR measurement indicated that Ti ions were in mixed valence state of +3 and +4. IR measurement indicated that the vibration frequency and width of BO6 octahedron stretching vibration absorption band decreases with the increasing of x. The valencestate of Ti ions can be altered by high-pressure and-temperature. (C) 2000Elsevier Science S.A. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/04/20 alle ore 04:31:43