GROWTH OF YB6 SINGLE-CRYSTALS
GROWTH OF YB6 SINGLE-CRYSTALS
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DOI：
10.1016/0025-5408(76)90179-3
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发表时间：
1976-01-01
影响因子：
5.4
通讯作者：
LONGINOTTI, LD
中科院分区：
文献类型：
--
作者：
FISK, Z;SCHMIDT, PH;LONGINOTTI, LD
用藻类助熔剂生长技术制备了尺寸为几毫米的YB6、GdB6和ThB6单晶。用电阻加热或感应加热的氧化铝坩埚在1550°C的A气氛中生长晶体。多元素助熔剂用于这些包晶形成的硼化物的晶体生长，允许良好的相控制，这是其他生长方法不易获得的。通过控制助熔剂混合物中带电硼化物的组成，可以改变这些化合物的化学计量比。超导转变温度、电阻率和晶格参数的测量表明，产生了非化学计量比(富B)晶体。
Single phase, single crystals of YB6, GdB6and ThB6, several mm in size, have been prepared by use of an AlGa flux growth technique. Crystals were grown in an A atmosphere at 1550°C using Al2O3crucibles that were heated either resistively or inductively. Use of the multi-elemental flux for crystal growth of these peritectically forming borides, has permitted good phase control not easily obtainable by other growth methods. Stoichiometry of these compounds can be varied by controlling the composition of the charge boride in the flux mixture. Measurement of superconducting transition temperatures, electrical resistance ratio and lattice parameters indicate that nonstoichiometric (B rich) crystals result.