Ring-shaped crystals of NbSe3 and TaSe3

被引：13

作者：

Tanda, S ^{[1
]}

Kawamoto, H ^{[1
]}

Shiobara, M ^{[1
]}

Okajima, Y ^{[1
]}

Yamaya, K ^{[1
]}

机构：

[1] Hokkaido Univ, Dept Appl Phys, Sapporo, Hokkaido 0608628, Japan

来源：

JOURNAL DE PHYSIQUE IV | 1999年 / 9卷 / P10期

关键词：

D O I：

10.1051/jp4:199910101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We discover new ring- and tube-shaped crystals of NbSe3, and find a reproducibly synthesizing condition for TaSe3 beautiful rings, as well as NbSe3. We confirm that the ring is a single-phase NbSe3 crystal from the X-ray diffraction, and that a charge-density ware (CDW) transition takes place near 140 K by observing satellites of electron diffraction peaks. The position of the satellites coincides with that of the conventional NbSe3 at the CDW transition. The non-linear conduction due to the CDW sliding is also observed in the ring crystals. The threshold field is similar to the conventional ribbon-shaped NbSe3 crystals. These results give the first evidences of existence of a CDW-ring.

引用

页码：379 / 381

页数：3

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