Hall Effect under Pressure and Phase Transitions in the Organic Superconductors,κ-(BEDT-TTF)2Cu(NCS)2 and β-(BEDT-TTF)2I3
-
- Murata Keizo
- Faculty of Science, Osaka City University
書誌事項
- タイトル別名
-
- Hall Effect under Pressure and Phase Transitions in the Organic Superconductors, .KAPPA.-(BEDT-TTF)2Cu(NCS)2 and .BETA.-(BEDT-TTF)2I3.
- Hall Effect under Pressure and Phase Tr
この論文をさがす
抄録
The Hall effect, RH (T) of organic conductors, even if they are metallic, is strongly temperature dependent and varies with pressure. By increasing pressure, RH (T) converges to a single curve, which is typical to the structure of each Fermi surface, low temperature novel states or excitations are suppressed. When RH (T) deviates abruptly from the “typical” RH (T) -behavior, it is a strong signal for finding phase transitions or precursor. We show the example in κ- (BEDT-TTF) 2Cu (NCS) 2 and in β- (BEDT-TTF) 2I3 with which anomaly in RH (T) corresponds to a peak (∼60 K) of antiferromagnetic fluctuation, and to 20 K- phase transition which is associated with tow-Tc superconductivity, respectively. Further, it turned out that the simple temperature-independent RH (T) is only realized in a material where the Fermi surface is round and simple in these low dimensional systems.
収録刊行物
-
- 高圧力の科学と技術
-
高圧力の科学と技術 7 407-411, 1998
日本高圧力学会
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390001204382307200
-
- NII論文ID
- 10002690325
-
- NII書誌ID
- AN10452913
-
- ISSN
- 13481940
- 0917639X
-
- NDL書誌ID
- 4493941
-
- 本文言語コード
- en
-
- データソース種別
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- 抄録ライセンスフラグ
- 使用不可