MAGNETOTRANSPORT AND CHARGE-DENSITY-WAVE INSTABILITIES IN THE QUASI-2-DIMENSIONAL PHOSPHATE TUNGSTEN BRONZES (PO2)4(WO3)2M (M = 4,6,7)

被引：6
|
作者：
ROTGER, A [1 ]
SCHLENKER, C [1 ]
DUMAS, J [1 ]
WANG, E [1 ]
TEWELDEMEDHIN, Z [1 ]
GREENBLATT, M [1 ]
机构：
[1] RUTGERS UNIV,DEPT CHEM,PISCATAWAY,NJ 08855
来源：
SYNTHETIC METALS | 1993年 / 56卷 / 2-3期
关键词：
D O I：
10.1016/0379-6779(93)90016-P
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Electrical resistivity has been measured between 4.2 K and 300 K in fields up to 6 Tesla on the monophosphate tungsten bronzes P4W8O32, P4W12O44 and P4W14O50. These compounds are anisotropic quasi-two-dimensional metals showing several charge density wave instabilities. For m = 4 and m = 6, a large anisotropic magnetoresistance is found in die lowest temperature charge density wave state, as expected, with small carrier pockets left on die Fermi surface by gap openings. For m = 7, several instabilities are found by the transport properties together with a small magnetoresistance. These results are partly consistent with X-ray diffuse scattering studies.
引用
收藏
页码：2670 / 2675
页数：6
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