LOW-TEMPERATURE BEHAVIOR OF ALPHA-PBO AND PB1-XTIXO1+X OXIDES FROM CALORIMETRIC, SPECTROSCOPIC AND NEUTRON-DIFFRACTION STUDIES

被引：4

作者：

CHHOR, K

POMMIER, C

GARNIER, P

ABELLO, L

机构：

[1] ECOLE CENT PARIS,CHIM PHYS SOLIDE LAB,CNRS,UA 453,F-92295 CHATENAY MALABRY,FRANCE

[2] LAB INGN MAT HAUTES PRESS,CNRS,LP 1311,F-93430 VILLETANEUSE,FRANCE

[3] ECOLE NATL SUPER ELECTROCHIM & ELECTROMET GRENOBLE,INST NATL POLYTECH GRENOBLE,F-38402 ST MARTIN DHERES,FRANCE

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 1991年 / 52卷 / 07期

关键词：

HEAT CAPACITY; RAMAN SPECTROSCOPY; NEUTRON DIFFRACTION; LEAD OXIDE;

D O I：

10.1016/0022-3697(91)90011-N

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The commensurate-incommensurate transition of PbO, lead monoxide, was confirmed by small anomalies observed below 200 K on both heat capacity curves and Raman spectra. For Pb0.94Ti0.06O1.06, no transition has been detected using neutron diffraction, heat capacity measurements and Raman spectroscopy. Structural refinements show new interlayer Pb-O and Ti-O bonds. Extra oxygen atoms are located in the interlayers of the host lattice of the PbO structure; they break the interactions between the electronic lone pairs of the Pb2+ ions and the transition no longer occurs.

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收藏

页码：895 / 902

页数：8

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