A reversible transition in liquid Bi under pressure
A reversible transition in liquid Bi under pressure
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DOI：
10.1063/1.5001916
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发表时间：
2018-01-21
影响因子：
4.4
通讯作者：
Greenberg, Y.
中科院分区：
文献类型：
--
作者：
Emuna, M.;Matityahu, S.;Greenberg, Y.
固体和液体铋的电阻已被测量在高压和高温下使用一种新的实验设计，高灵敏度测量利用“巴黎-爱丁堡”环形大容量压力。一个异常急剧下降的电阻率随温度的升高，在恒定的压力下观察到的区域以外的熔化，这意味着一个可能的新的过渡熔体。在样品的加热和冷却循环中的压力范围内观察到所提出的转变，证明其可逆性。从测量结果，它是可能的，以确定在熔融曲线终止的Bi压力-温度相图上的这种转变的“相线”。由AIP出版社出版。
The electrical resistance of solid and liquid Bi has been measured at high pressures and temperatures using a novel experimental design for high sensitivity measurements utilizing a "Paris-Edinburgh" toroid large volume press. An anomalous sharp decrease in resistivity with increasing temperature at constant pressures was observed in the region beyond melting which implies a possible novel transition in the melt. The proposed transition was observed across a range of pressures both in heating and cooling cycles of the sample demonstrating its reversibility. From the measurements it was possible to determine a "phase-line" of this transition on the Bi pressure-temperature phase diagram terminating at the melting curve. Published by AIP Publishing.