DC ELECTRICAL-RESISTIVITY OF NB-DOPED BATIO3 AND EPR MEASUREMENTS

被引:55
作者
GILLOT, C [1 ]
MICHENAUD, JP [1 ]
MAGLIONE, M [1 ]
JANNOT, B [1 ]
机构
[1] UNIV BOURGOGNE,PHYS SOLIDE LAB,F-21004 DIJON,FRANCE
关键词
D O I
10.1016/0038-1098(92)90434-B
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
DC electrical resistivity measurements along the c-axis of Nb-doped BaTiO3 single crystals are presented in a wide range of temperature, covering the four phases, with special attention to the rhomboedral one. The temperature dependence of the conductivity leads to convincing arguments in favour of a polaronic mechanism. Below the orthorhombic-rhomboedral transition point, a strong increase of the resistivity is observed. The correlation of this behavior with EPR analysis in the same temperature range, is consistent with a sharp trapping of the ''free'' electrons, when the temperature decreases.
引用
收藏
页码:1033 / 1038
页数:6
相关论文
共 16 条
  • [11] IHRIG H, 1975, J PHYS C SOLID STATE, V9, P3469, DOI DOI 10.1088/0022-3719/9/18/013
  • [12] IHRING H, 1978, PHYS REV, V12, P4593
  • [13] MORETTI P, 1987, THESIS U LYON
  • [14] MULLER KA, 1986, NONLINEARITY CONDENS
  • [15] 2-PHOTON-RAY-INDUCED AND X-RAY-INDUCED NB4+ AND O- SMALL POLARONS IN LINBO3
    SCHIRMER, OF
    VONDERLINDE, D
    [J]. APPLIED PHYSICS LETTERS, 1978, 33 (01) : 35 - 38
  • [16] SEUTER AMJ, 1974, PHILIPS RES REPT S, V3