The crystal structure and magnetic and electrical properties of β‐US2
The crystal structure and magnetic and electrical properties of β‐US2
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β-US2的晶体结构及磁电性质
DOI：
10.1002/pssa.2210090230
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发表时间：
1972
期刊：
影响因子：
--
通讯作者：
A. Czopnik
中科院分区：
文献类型：
--
作者：
W. Suski;T. Gibiński;A. Wojakowski;A. Czopnik
利用单晶X-射线衍射数据对β-US_2的晶体结构进行了修正。室温下的晶格常数为：a=8.4803 A，b=7.1139 A，c=4.1205 A。铀原子由九个硫原子配位：两个在2.713 A，两个在2.896 A，两个在3.141 A，一个在2.747 A，一个在2.826 A，在2.888~1000°K温度范围内进行了磁测量，解释了有效磁矩随温度的增加从3.08BM增加到3.28BM的原因，并假定基态由四个紧密排列的单态组成。用禁带隙ΔE≈1.2 eV建立了4.2K到650K温度范围内的半导体特性。
[忽略俄语文本]。
The crystal structure of β-US2 was refined using single crystal X-ray diffraction data. The lattice constants at room temperature are: a = 8.4803 A, b = 7.1139 A, and c = 4.1205 A. The uranium atom is coordinated by nine sulphur atoms: two at a distance of 2.713 A, two at 2.896 A, two at 3.141 A, one at 2.747 A, one at 2.826 A, and one at 2.888 A. The magnetic measurements were carried out in the temperature range 4.2 to 1000 °K. The increase of the effective magnetic moment from 3.08 to 3.28 BM with temperature is explained on the assumption that the ground state is composed of four closely spaced singlets. The semiconducting character in the temperature range 4.2 to 650 °K was established with a forbidden gap ΔE≈1.2 eV.
[Russian text Ignored].