STABILIZATION OF TI3+ IN REDUCED (PB,LA)(TI,CU)O-3 CERAMICS - AN EPR STUDY

被引：12

作者：

BIDAULT, O

ACTIS, M

MAGLIONE, M

机构：

[1] LPUB - Matériaux pour l'Optique, URA CNRS 1796, Université de Bourgogne, 21004 Dijon, Bâtiment Mirande

来源：

SOLID STATE COMMUNICATIONS | 1995年 / 95卷 / 12期

关键词：

FERROELECTRICS; VALENCE FLUCTUATIONS; ELECTRON PARAMAGNETIC RESONANCE;

D O I：

10.1016/0038-1098(95)00399-1

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Unusual curvature at 160 K for the de resistivity measurements versus temperature in reduced PbTiO3:La,Cu samples have been evidenced. From our EPR results, this anomaly seems to be linked to the reduction of some Ti4+ into Ti3+ owing to a polaronic effect.

引用

页码：845 / 849

页数：5

共 11 条

[1] BIDAULT O, 1994, FERROELECTRICS LETT, V18
[2] BIDAULT O, 1995, THESIS DIJON
[3] DC ELECTRICAL-RESISTIVITY OF NB-DOPED BATIO3 AND EPR MEASUREMENTS
GILLOT, C
MICHENAUD, JP
MAGLIONE, M
JANNOT, B
[J]. SOLID STATE COMMUNICATIONS, 1992, 84 (11) : 1033 - 1038
[4] POLARONIC CONDUCTION IN N-TYPE BATIO3 DOPED WITH LA2O3 OR GD2O3
IGUCHI, E
KUBOTA, N
NAKAMORI, T
YAMAMOTO, N
LEE, KJ
[J]. PHYSICAL REVIEW B, 1991, 43 (10): : 8646 - 8649
[5] ELECTRON-PARAMAGNETIC-RES EVIDENCE FOR ACTIVATION OF TRAP CENTERS IN PTCR BATIO3 CERAMICS
KUTTY, TRN
MURUGARAJ, P
GAJBHIYE, NS
[J]. MATERIALS RESEARCH BULLETIN, 1985, 20 (05) : 565 - 574
[6] LINES ME, 1977, PRINCIPLES APPLICATI
[7] MOURON P, 1988, THESIS ORLEANS
[8] PARAMAGNETIC POINT AND PAIR DEFECTS IN OXIDE PEROVSKITES
MULLER, KA
[J]. JOURNAL DE PHYSIQUE, 1981, 42 (04): : 551 - 557
[9] PARAMAGNETIC DEFECTS IN BATIO3 AND THEIR ROLE IN LIGHT-INDUCED CHARGE TRANSPORT .1. ESR STUDIES
POSSENRIEDE, E
JACOBS, P
SCHIRMER, OF
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 1992, 4 (19) : 4719 - 4742
[10] SHALLOW ACCEPTOR AND ELECTRON CONDUCTION STATES IN BaTiO3
Possenriede, E.
Kroese, H.
Varnhorst, T.
Scharfschwerdt, R.
Schirmer, O. F.
[J]. FERROELECTRICS, 1994, 151 (01) : 199 - 204

← 1 2 →