Determination of magnetic-field penetration depth in a superconducting single-crystal YBa2Cu3O7 thin film from polarized-neutron reflection
Gaponov S. V. , Dokukin E. B. , Korneev D. A. , Klyuenkov E. B. , Lobner W. , Pasyuk V. V. , Petrenko A. V., Rzhany Kh. , Chernenko L P.
The depth to which a magnetic field penetrates into a superconducting single-crystal film of YBa2Cu3Ov _ s (2000-A thick, deposited on a {100} surface of a SrTi03 single crystal) along the с axis is Лс = 970 ± 2™ A at Τ = 5.2 К, according to an experiment involving the specular reflection of polarized thermal neutrons.