[15p-D63-1~18] 11.1 Fundamental properties

[15p-D63-2] Cu Nuclear-Spin Observation of CuO₂ Electronic States in Superconducting Pr247

Kohsuke Ikeda¹, Masahiro Sakai¹, Tatsuya Ohtaki¹, 〇Susumu Sasaki², Fumihiro Ishikawa³, Yuh Yamada³, Jun-ichi Shimoyama⁴ (1.Grad. Niigata Univ., 2.Niigata Univ. Eng., 3.Niigata Univ. Sci., 4.Aogaku Univ.)

Keywords:superconductor, nuclear spin

For superconducting Pr247, the CuO₂ planes are found to be in an antiferromagnetic state at low temperatures. Along with the previous reports on the superconducting Pr247 at room temperature, the present finding clearly proves that the CuO₂ planes do not drive the superconductivity at all.