Impersonating a Superconductor: Ba₂Co₄ClO₇ single crystals, a semiconducting strong diamagnetic

Zhujialei Lei^1*, I Nan Chen², Li Min Wang¹

¹Department of Physics, National Taiwan University, Taipei, Taiwan
²Instrumentation Center, National Taiwan University, Taipei, Taiwan

* Presenter:Zhujialei Lei, email:2561895243@qq.com

Superconducting materials have strong diamagnetic properties below the superconducting transition temperature. There are also some materials with weak diamagnetic properties. But here we report a non-superconducting material with strong diamagnetic properties, called a impersonating superconductor, which has the potential to become a superconducting material and may provide help in uncovering the causes of superconducting phenomena. The structural formula is Ba₂Co₄ClO₇. It shows strong diamagnetism below the temperature of about 55K. This is closer to a superconductor than other reports, but its electrical properties are still the same as those of a semiconductor.

Keywords: diamagnetic, semiconducting, impersonating