TY - JOUR
T1 - Possible low-temperature phase transition of Langmuir-Blodgett films of a charge-transfer complex detected by ESR
AU - Ikegami, Keiichi
AU - Kuroda, Shin Ichi
AU - Akutagawa, Tomoyuki
AU - Konuma, Taro
AU - Nakamura, Takayoshi
AU - Matsumoto, Mutsuyoshi
AU - Horiuchi, Sachio
AU - Yamochi, Hideki
AU - Saito, Gunzi
PY - 1998
Y1 - 1998
N2 - The electron spin resonance (ESR) measurements made on the highly conducting Langmuir-Blodgett (LB) films of a charge-transfer complex of bis(ethylenedioxy)tetrathiafulvalene (BO) and decyltetracyanoquinodimethane (C10TCNQ), mixed with icosanoic acid, revealed microscopically the metallic nature of the system in a wide temperature range. Further, an anomalous increase in the ESR linewidth was detected around 140 K. To elucidate the origin of this anomaly, in situ ESR experiments upon annealing at low temperatures have been performed. The temperature dependence of the infrared spectrum has been also measured. The obtained results indicate a possible low-temperature phase transition of the present conducting LB system.
AB - The electron spin resonance (ESR) measurements made on the highly conducting Langmuir-Blodgett (LB) films of a charge-transfer complex of bis(ethylenedioxy)tetrathiafulvalene (BO) and decyltetracyanoquinodimethane (C10TCNQ), mixed with icosanoic acid, revealed microscopically the metallic nature of the system in a wide temperature range. Further, an anomalous increase in the ESR linewidth was detected around 140 K. To elucidate the origin of this anomaly, in situ ESR experiments upon annealing at low temperatures have been performed. The temperature dependence of the infrared spectrum has been also measured. The obtained results indicate a possible low-temperature phase transition of the present conducting LB system.
KW - Charge-transfer complex
KW - Conducting organic thin-film
KW - Electron spin resonance
KW - Infrared absorption spectroscopy
KW - Langmuir-Blodgett film
KW - Phase transition
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U2 - 10.1016/S0040-6090(98)00660-9
DO - 10.1016/S0040-6090(98)00660-9
M3 - Article
AN - SCOPUS:11544345069
SN - 0040-6090
VL - 327-329
SP - 391
EP - 394
JO - Thin Solid Films
JF - Thin Solid Films
IS - 1-2
ER -