scholarly journals Metallic Conduction and Carrier Localization in Two-Dimensional BEDO-TTF Charge-Transfer Solid Crystals

Crystals ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 23
Author(s):  
Hiroshi Ito ◽  
Motoki Matsuno ◽  
Seiu Katagiri ◽  
Shinji K. Yoshina ◽  
Taishi Takenobu ◽  
...  

Charge-transfer salts based on bis(ethylenedioxy)tetrathiafulvalene (BEDO-TTF or BO for short) provide a stable two-dimensional (2D) metallic state, while the electrical resistance often shows an upturn at low temperatures below ~10 K. Such 2D weak carrier localization was first recognized for BO salts in the Langmuir–Blodgett films fabricated with fatty acids; however, it has not been characterized in charge-transfer solid crystals. In this paper, we discuss the carrier localization of two crystalline BO charge-transfer salts with or without magnetic ions at low temperatures through the analysis of the weak negative magnetoresistance. The phase coherence lengths deduced with temperature dependence are largely dominated by the electron–electron scattering mechanism. These results indicate that the resistivity upturn at low temperatures is caused by the 2D weak localization. Disorders causing elastic scattering within the metallic domains, such as those of terminal ethylene groups, should be suppressed to prevent the localization.

1989 ◽  
Vol 179 (1-2) ◽  
pp. 267-275 ◽  
Author(s):  
P.S Sotnikov ◽  
T.S Berzina ◽  
V.I Troitsky ◽  
R.E Valter ◽  
G.A Karlivan ◽  
...  

1987 ◽  
Vol 87 (11) ◽  
pp. 6754-6763 ◽  
Author(s):  
M. Vandevyer ◽  
J. Richard ◽  
A. Barraud ◽  
A. Ruaudel‐Teixier ◽  
M. Lequan ◽  
...  

1987 ◽  
Vol 86 (4) ◽  
pp. 2428-2438 ◽  
Author(s):  
Joel Richard ◽  
Michel Vandevyver ◽  
Pierre Lesieur ◽  
Annié Ruaudel‐Teixier ◽  
André Barraud ◽  
...  

2001 ◽  
Vol 63 (13) ◽  
Author(s):  
Yasuo Ishizaki ◽  
Mitsuru Izumi ◽  
Hitoshi Ohnuki ◽  
Krystyna Kalita-Lipinska ◽  
Tatsuro Imakubo ◽  
...  

1998 ◽  
Vol 327-329 ◽  
pp. 391-394
Author(s):  
Keiichi Ikegami ◽  
Shin-ichi Kuroda ◽  
Tomoyuki Akutagawa ◽  
Taro Konuma ◽  
Takayoshi Nakamura ◽  
...  

1986 ◽  
Vol 15 (5) ◽  
pp. 709-712 ◽  
Author(s):  
Takayoshi Nakamura ◽  
Mutsuyoshi Matsumoto ◽  
Fumio Takei ◽  
Motoo Tanaka ◽  
Tatsuo Sekiguchi ◽  
...  

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