Optical evidence for dimensionality crossover: the case of ladder systems and organic Bechgaard salts

被引：2
|
作者：
Ruzicka, B [1 ]
Degiorgi, L
Vescoli, V
Ammerahl, U
Dhalenne, G
Revcolevschi, A
机构：
[1] ETH Zurich, Festkorperphys Lab, CH-8093 Zurich, Switzerland
[2] Univ Paris 11, Lab Chim Solides, F-91405 Orsay, France
[3] Univ Cologne, Inst Phys 2, D-50937 Cologne, Germany
来源：
PHYSICA C | 2000年 / 341卷
关键词：
D O I：
10.1016/S0921-4534(00)00511-6
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We compare our optical data collected in two families of low dimensional correlated electron systems: the ladders and the organic Bechgaard salts. Our data display a remarkable optical anisotropy between the spectra along the three crystallographic axes, indicative of the low dimensionality in the electronic band structure. Moreover, we optically identify a dimensionality crossover, induced by Ca-doping in the ladders and by chemical pressure in the Bechgaard salts.
引用
收藏
页码：359 / 362
页数：4
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