Details

Autor(en) / Beteiligte

• Ibragimova, Elvira M.
• Shodiev, Akhmad A.
• Ahrorova, Sarvina
• Mussaeva, Malika A.
• Iskandarov, Nurmukhammad E.
• Kurbanov, Ulugbek T.
• Tashmetov, Mannab Yu

Titel

Low-dimensional magnetic centers in HTSC YBCO film on steel-276 induced by gamma-quanta and electron beam

Ist Teil von

• Journal of magnetism and magnetic materials, 2024-04, Vol.595, p.171617, Article 171617

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2024

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• •The optimal electron beam current and fluency, when linear defects are spaced to accommodate superconducting vortices.•Gamma-irradiation at 77 K generates defect pairs and causes hole localization and increases magnetic induction.•Such a radiation treatment of HTSC tapes is recommended for the electron beam focusing coils. Coated HTSC tapes of 2-generation based on YBa2Cu3O7-x film were irradiated with 5 MeV electron beam at 273 K to generate low-dimensional defects of atomic displacements in Cu and O sublattices for possible enhancing the magnetic flux pinning and thereby increasing the magnetic critical current. We found the optimal electron beam current and fluency, when the neighbouring linear defects are spaced so as to accommodate vortices in the undamaged superconducting area. The following 60Co gamma-irradiation at 77 K generates defect pairs and causes hole localization and increases magnetic induction. In the mixed vortex state the charge carrier pairing energy is higher than kT due to paramagnetic pinning at radiation induced defects in oxygen sublattice both in CuO chains and CuO2 planes. Such a radiation treatment of HTSC tapes is recommended for the electron beam focusing coils.