Impurity Effect on the Inter-Chain Dielectric Response of the CDW Condensate in K0.3MoO3

被引：0
|
作者：
Maki, Makoto [1 ]
Inoue, Tomoki [1 ]
Tobata, Hitoshi [1 ]
Shu-nan, Masafumi [1 ]
Nishizaki, Terukazu [2 ]
Ichikawa, Fusao [3 ]
机构：
[1] Saga Univ, Dept Phys, Saga 8408502, Japan
[2] Kyushu Sangyo Univ, Dept Elect Engn & Informat Technol, Fukuoka 8138503, Japan
[3] Kumamoto Univ, Dept Phys, Kumamoto 8608555, Japan
来源：
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2014年 / 83卷 / 12期
关键词：
CHARGE-DENSITY-WAVE; POTASSIUM MOLYBDENUM BRONZE; TRANSITION;
D O I：
10.7566/JPSJ.83.124702
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study the effect of impurity on the charge-density-wave (CDW) state via low-frequency dielectric measurements, especially for the inter-chain direction. The extremely high dielectric constant seen in non-doped K0.3MoO3 is strongly reduced by W- or V-doping, demonstrating that the three-dimensional (3D) phase rigidity is an innate characteristic of CDW condensate. In the impurity-doped K0.3MoO3, the 3D rigidity has been lost and the CDW state exhibits a different nature in which the dielectric response of CDW cannot be explained in terms of the screened phason model.
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页数：4
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