论文标题
关于在低温下压力引起的欧洲金属的超导状态
About the Pressure-Induced Superconducting State of Europium Metal at Low Temperatures
论文作者
论文摘要
在物理中。莱特牧师。 102，197002（2009）据报道，欧盟元素在压力和温度范围内变得超导[84-142GPA]，[1.8-2.75K]。该主张主要基于AC易感性测量。最近报道的在压力下在氢化物化合物上的AC敏感性测量似乎在室温附近变成超导（自然586，373（2020））对欧盟和氢化物的结果的有效性产生了严重怀疑。在这里，我提出了有关欧盟真实行为的新结果。有人认为，必须重复对欧盟的实验进行验证或排除说明其是超导元素的说法。
In Phys. Rev. Lett. 102, 197002 (2009) it was reported that the element Eu becomes superconducting in the pressure and temperature range [84-142GPa], [1.8-2.75K]. The claim was largely based on ac susceptibility measurements. Recently reported ac susceptibility measurements on a hydride compound under pressure that appears to become superconducting near room temperature (Nature 586, 373 (2020)) cast serious doubt on the validity of the results for Eu as well as for the hydride. Here I present results that shed new light on the true behaviour of Eu. It is argued that the experiments on Eu have to be repeated to either validate or rule out the claim that it is a superconducting element.
