[21p-D903-1~16] 6.4 Thin films and New materials

3:15 PM - 3:30 PM JST(6:15 AM - 6:30 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[21p-D903-5] Superconducting Properties and Proximity Effects in Ferromagnetic Fe₄N/Superconducting NbN Junction

〇(M2)Yuma Yoshida¹, Takuto Soma¹, Akira Ohtomo¹ (1.Tokyo Tech., Dept. Chem. Sci. Eng.)

Keywords:

Nitride,Ferroagnetism,Superconductivity

The study of the proximity effect in the junction of a superconductor and a ferromagnet is expected to contribute to the realization of superconducting spintronics. Although there are few studies on the proximity effect in nitride-based junctions, the unique reduction of the proximity effect in nitride-based junctions, such as the appearance of a peculiar magnetic structure, has attracted much attention. In this study, we report on epitaxial growth of Fe₄N, which exhibits high Curie temperature and high spin polarization, and NbN, which exhibits high T_c, and detailed investigation of the proximity effect from the viewpoint of electrical and magnetic properties.