Suslov A V
National High Magnetic Field Laboratory, Tallahassee, Florida 32310, USA.
Rev Sci Instrum. 2010 Jul;81(7):075111. doi: 10.1063/1.3463691.
Described is a system consisted of Keithley's current source Model 6221 and nanovoltmeter Model 2182A pairs. That pair was developed by Keithley for precise measurements of a sample's one electrical parameter by the dc current-reversal transport technique. Nonstandard synchronization method employed in the presented setup allows assembling several pairs together for low level electrical measurements of a sample's several parameters associated with the same current, thus expanding the applications of these devices. The equipment was tested by simultaneous measurements of such two parameters as transverse magnetoresistance and Hall voltage on the following materials: Si/SiGe, Ge:Mn; HgTe/HgCdTe, and InMnSb.
描述了一种由吉时利6221型电流源和2182A型纳伏表组成的系统。该对设备由吉时利开发,用于通过直流电流反向传输技术精确测量样品的一个电学参数。所展示装置中采用的非标准同步方法允许将几对设备组装在一起,用于对与同一电流相关的样品的几个参数进行低电平电学测量,从而扩展了这些设备的应用。该设备通过在以下材料上同时测量横向磁阻和霍尔电压这两个参数进行了测试:Si/SiGe、Ge:Mn;HgTe/HgCdTe和InMnSb。