论文标题
IM-3M H3S中的清洁限制超导性，由硫和氢氨基氨基合成
Clean-limit superconductivity in Im-3m H3S synthesized from sulfur and hydrogen donor ammonia borane
论文作者
论文摘要
我们介绍了高压H3S中超导性的详细研究。 X射线衍射测量表明，立方IM-3M H3S是由元素硫和氢氨基氨（NH3BH3）合成的。我们的电运输测量值证实了153 GPA的过渡温度TC = 197 K的超导性。从对正常状态电阻率和临界场的斜率的分析中，我们得出结论，超导率是通过清洁限制行为描述的。如预期的，在有限磁场中的电阻过渡的显着拓宽。我们确定了在超导转变处的电阻的线性温度范围缩放，现有理论未描述。
We present detailed studies of the superconductivity in high-pressure H3S. X-ray diffraction measurements show that cubic Im-3m H3S was synthesized from elemental sulfur and hydrogen donor ammonia borane (NH3BH3). Our electrical transport measurements confirm superconductivity with a transition temperature Tc = 197 K at 153 GPa. From the analysis of both the normal state resistivity and the slope of the critical field, we conclude that the superconductivity is described by clean-limit behaviour. A significant broadening of the resistive transition in finite magnetic field is found, as expected for superconductors. We identify a linear temperature-over-field scaling of the resistance at the superconducting transition which is not described by existing theories.
