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首页> 外文期刊>Revista de metalurgia >Síntesis e investigación del mono cristal BiSBTeSe dopado con Zr obtenido mediante el método de Bridgman
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Síntesis e investigación del mono cristal BiSBTeSe dopado con Zr obtenido mediante el método de Bridgman

机译：布里奇曼法制得的掺Zr的BiSBTeSe单晶的合成与研究

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摘要

Single crystal ingot of BiSbTeSe doped with Zr was synthesized using Bridgman method. Energy dispersive spectrometry (EDS) analysis was used to determine chemical composition of studied samples as well as to check and confirm samples homogeneity. X-ray diffraction (XRD) measurements proved that obtained crystal ingot is a single cristal and confirms Bi 2 Te 3 -type compound with orientation (00l) of single crystal. Melting point was determined by dilatometrically measured shrinkage during heating. Mobility, concentration, resistivity/conductivity and Hall coefficient of BiSbTeSe doped with Zr samples were determined using a Hall Effect measurement system based on the Van der Pauw method. The Hall Effect was measured at room temperature with an applied magnetic field strength of 0.37 T at different current intensities. The measured ingot samples were cut and cleaved from different regions. Calculated results obtained using a Hall Effect measurement system (Ecopia, HMS-3000) were mutually compared for cleaved and cut samples. Changing of transport and electrical parameters with the increase of the current intensity was also monitored.The results confirmed that electrical and transport properties of single crystal depend on crystal growth direction and mobility was also significantly improved in comparison with theoretical value of Bi 2 Te 3 and available literature data.
机译：采用Bridgman法合成了掺Zr的BiSbTeSe单晶锭。能量色散光谱（EDS）分析用于确定研究样品的化学成分，并检查和确认样品的均匀性。 X射线衍射（XRD）测量证明所获得的晶锭是单晶体，并且证实了具有单晶取向（00l）的Bi 2 Te 3型化合物。熔点通过在加热过程中通过测热法测得的收缩率来确定。掺杂了Zr样品的BiSbTeSe的迁移率，浓度，电阻率/电导率和霍尔系数是使用基于Van der Pauw方法的霍尔效应测量系统确定的。霍尔效应是在室温下在不同电流强度下施加的磁场强度为0.37 T时测量的。从不同区域切割并切割测量的铸锭样品。将使用霍尔效应测量系统（Ecopia，HMS-3000）获得的计算结果相互比较，以比较裂解和切割后的样品。结果表明，与Bi 2 Te 3和Bi 2 Te 3的理论值相比，单晶的电学和电学性质取决于晶体的生长方向和迁移率。现有文献数据。

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