河北大学学报(自然科学版) ›› 2002, Vol. 22 ›› Issue (2): 184-185.DOI: 10.3969/j.issn.1000-1565.2002.02.019
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王银顺,郑志远,于威
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摘要： 报道了Mg1-xNaxB2化合物的结构和超导特性.块状样品的X射线衍射结果表明样品具有六边形的晶态结构.由于镁粉的化学活性,X射线衍射检测到了少量的MgO杂相.磁测量结果表明非化学计量比的MgB2并没有影响到超导的转变温度及转变温度的宽度.同时,钠的引入几乎没有影响到超导体转变温度.
关键词: Mg1-xNaxB2, 超导特性, X射线衍射
Abstract: The structural properties and superconductivity of Mg1-xNaxB2 compounds are reported in this paper. Bulk samples X- ray diffraction (XRD) results indicate that the samples crystallize in a hexagonal structure. Due to the chemical activity of Mg powders, a sample amount of MgO impurity phase is detected by X-ray diffraction. Magnetization measurement results indicate that the non- stoichiometry of MgB2 has no influence on the superconducting transition temperature and the transition temperature width. And the introduction of Na almost has no effect on the transition temperature.
Key words: Mg1 - x NaxB2, superconductivity, XRD
中图分类号:
O511
王银顺,郑志远,于威. Mg1-xNaxB2化合物的结构和超导特性（英文）[J]. 河北大学学报(自然科学版), 2002, 22(2): 184-185.
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