Anomalies in the Pulsed Photoconductivity of Undoped C60 and Their Relationship to Phase Transitions.
Anomalies in the Pulsed Photoconductivity of Undoped C60 and Their Relationship to Phase Transitions.
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未掺杂 C60 的脉冲光电导异常及其与相变的关系。
DOI：
10.1143/jpsj.64.527
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发表时间：
1995
影响因子：
1.7
通讯作者：
K. Kishio
中科院分区：
文献类型：
--
作者：
H. Yamaguchi;T. Yamaguchi;S. Kagoshima;T. Masumi;Jing Li;K. Kishio
研究了面心立方C60单晶在4-300K温度范围和337-780 nm波长范围内的脉冲光电导。主要的光载体原来是电子。我们在85K、155K和260K发现了光电导反常现象，其中C60团簇的转动自由度已经发现或可能发生结构相变。发现155K时的反常被环境氧猝灭。
We studied pulsed photoconductivity of face-centered-cubic C 60 single crystals in the temperature range 4–300 K and the wave-length one 337–780 nm. Dominant photocarriers turned out to be electrons. We found photoconductivity anomalies at 85 K, 155 K and 260 K where structural phase transitions have been found or are expected to occur in the rotational degree of freedom of C 60 clusters. The anomaly at 155 K was found to be quenched by ambient oxygen.