一种用于同时进行电阻和中子衍射测量的高温样品池。
A high temperature cell for simultaneous electrical resistance and neutron diffraction measurements.
作者信息
Engin T E, Powell A V, Haynes R, Chowdhury M A H, Goodway C M, Done R, Kirichek O, Hull S
机构信息
Department of Chemistry, Perkin Building, Heriot-Watt University, Edinburgh EH14 4AS, United Kingdom.
出版信息
Rev Sci Instrum. 2008 Sep;79(9):095104. doi: 10.1063/1.2979011.
An in situ cell that allows the electrical resistance of a sample pellet to be measured while performing neutron diffraction experiments has been developed at the ISIS pulsed neutron source. The sample is held between two spring loaded platinum electrodes embedded in a boron nitride clamp assembly with the resistance measured using the four-probe method. An outer quartz glass jacket allows the atmosphere within the sample enclosure to be controlled, and the entire device can be accommodated within a standard ISIS neutron furnace for measurements at temperatures up to 1270 K. The operation of this cell is illustrated using data for the structural, magnetic, and electrical properties of chalcopyrite CuFeS(2) collected over the temperature range of 398-873 K on the Polaris powder diffractometer at ISIS.
在ISIS脉冲中子源处已开发出一种原位池，可在进行中子衍射实验时测量样品片的电阻。样品夹在嵌入氮化硼夹组件中的两个弹簧加载铂电极之间，采用四探针法测量电阻。外部石英玻璃套可控制样品腔内的气氛，整个装置可容纳在标准的ISIS中子炉内，以便在高达1270 K的温度下进行测量。利用在ISIS的北极星粉末衍射仪上于398 - 873 K温度范围内收集的黄铜矿CuFeS₂的结构、磁性和电学性质数据，说明了该池的运行情况。
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