Field-Induced Successive Phase Transitions in the Charge Density Wave Organic Conductor HMTSF-TCNQ

被引：7

作者：

Murata, Keizo ^{[1
]}

Yokogawa, Keiichi ^{[1
]}

Kobayashi, Kensuke ^{[1
]}

Masuda, Kosuke ^{[1
]}

Sasaki, Takahiko ^{[2
]}

Seno, Yuki ^{[1
]}

Tamilselvan, Natarajan Rani ^{[1
]}

Yoshino, Harukazu ^{[1
]}

Brooks, James S. ^{[3
]}

Jerome, Denis ^{[4
]}

Bechgaard, Klaus ^{[5
]}

Uruichi, Mikio ^{[6
]}

Yakushi, Kyuya ^{[6
]}

Nogami, Yoshio ^{[7
]}

Kato, Reizo ^{[8
]}

机构：

[1] Osaka City Univ, Grad Sch Sci, Osaka 5588585, Japan

[2] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan

[3] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32306 USA

[4] Univ Paris 11, Phys Solides Lab, F-91405 Orsay, France

[5] HC Oersted Inst, DK-2100 Copenhagen, Denmark

[6] Natl Inst Nat Sci, Inst Mol Sci, Okazaki, Aichi 4448585, Japan

[7] Okayama Univ, Dept Phys, Okayama 7008530, Japan

[8] RIKEN, Wako, Saitama 3510198, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2010年 / 79卷 / 10期

关键词：

HMTSF-TCNQ; charge density wave; magnetoresistance; field-induced phase transitions; METALLIC BEHAVIOR; PRESSURE;

D O I：

10.1143/JPSJ.79.103702

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The magnetoresistance of quasi-1D two-chain organic conductor HMTSF-TCNQ (hexamethylenetetraselenafulvalene-tetracyanoquinodimethane), which shows charge density wave transition at ambient pressure, was studied under pressure up to 27 T and 31 T, in two high field facilities. We found a kink structure in the magnetoresistance reminiscent of field-induced spin density wave at an intermediate pressure of 1.5 GPa between 0 and 2 GPa. We speculate that these are successive quantum phases induced by magnetic field.

引用

页数：4

共 17 条

[1] LOW-TEMPERATURE METALLIC BEHAVIOR AND RESISTANCE MINIMUM IN A NEW QUASI ONE-DIMENSIONAL ORGANIC CONDUCTOR [J].