Superconducting Phase Diagram of the Yttrium, Barium, and YBa-core in YBa2Cu3O7–δ by an Ising Model

Superconducting magnetic hysteresis behaviors in ABO3-type Perovskites

“…One notes that usual ferromagnetic hysteresis loop areas of the A, O and total ABO3 disappear at Tc and type II superconducting magnetic hysteresis loop area of the B atoms disappears at Tv. Our type II superconducting magnetic hysteresis results of ABO3 are in agreement with the theoretical results of the body-centered orthorhombic nanolattice structure (Şarlı, 2015), Ni50Mn36Sn14 Heusler Alloy (Duran, 2018), yttrium, barium, copper1 and oxygen2, and YBa core of YBa2Cu3O7-δ (Keskin and Şarlı, 2018;Şarlı and Keskin, 2019b) and coexistence of ferromagnetism and superconductivity in NiBi alloy (Şarlı and Keskin, 2019a), Superconductivity-like phenomena in antiferrimagnetic endohedral fullerene (Kantar, 2017). ii.…”

“…Effective Field Theory (EFT), developed by Kaneyoshi (Kaneyoshi, 1993), is a successful method to obtain the superconducting properties (type II) of the magnetic systems (Şarlı and Keskin, 2019a). Such as, superconductor core effect of the body-centered orthorhombic nanolattice structure (Şarlı, 2015), Surface superconductivity in Ni50Mn36Sn14 Heusler Alloy (Duran, 2018), superconducting phase diagram of the yttrium, barium, and YBa core in YBa2Cu3O7-δ (Keskin and Şarlı, 2018), effects of the copper and oxygen atoms of the CuO-plane on magnetic properties of the YBCO (Şarlı and Keskin, 2019b), coexistence of ferromagnetism and superconductivity in NiBi binary alloy (Şarlı and Keskin, 2019a), superconductivity-like phenomena in antiferrimagnetic endohedral fullerene with diluted magnetic surface (Padilha et al, 2013) and thermodynamic properties of copper-oxide superconductors (Kantar, 2017). In these studies, the superconducting properties (Meissner, vortex (or Subnikov and Abrikosov) and normal states) and superconducting magnetic hysteresis properties are successfully obtained by using EFT.…”