Superconductivity study of GaN highly doped by transition metals
Jacek Gosk , M. Boćkowski , M. Tokarczyk , G. Kowalski , A. Twardowski
AbstractGaN:Cr and GaN:Fe single crystals as well as GaN:Mn micropowders highly doped by transition metals were grown to investigate low temperature superconductivity. Magnetic measurements revealed type I superconductivity with TC 6 K and HC 600 Oe, identical for all compounds and also identical to that observed before in GaP:Cr and GaAs:Cr. The presence of amorphous inclusions of gallium may explain existing superconductivity as a result of a phase transition leading to β-Ga during cooling down of the sample. Since the observed parameters are close to those characteristic for superconducting Ga(II) this possibility could not be ruled out.
|Journal series||Acta Physica Polonica A, ISSN 0587-4246|
|Keywords in English||Amorphous inclusions; GaAs; Low-temperature superconductivity; Micropowders, Gallium nitride; Transition metals, Superconductivity|
|Score|| = 15.0, 10-06-2020, ArticleFromJournal|
= 15.0, 10-06-2020, ArticleFromJournal
|Publication indicators||= 0; = 0; : 2013 = 0.564; : 2013 = 0.604 (2) - 2013=0.511 (5)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.