[15a-K303-1~10] 10.1 Emerging materials in spintronics and magnetics (including fabrication and characterization methodologies)

10:30 AM - 10:45 AM JST(1:30 AM - 1:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[15a-K303-6] Epitaxial growth of Mn_4−xPd_xN films and evaluation of their magnetic properties

〇(B)Soushi Akita¹, Tomohiro Yasuda¹, Kenta Amemiya², Takashi Suemasu¹ (1.Tsukuba Univ., 2.KEK)

Keywords:

nitride,ferrimagnetic,spintronics

Epitaxial Mn_4-xPd_xN thin films (x = 0.00–0.50) with a thickness of approximately 25 nm were fabricated on SrTiO₃(001) substrates using molecular beam epitaxy. The crystallinity, magnetic properties, and magnetic structure were evaluated at room temperature. ω–2θ XRD and RHEED measurements confirmed successful epitaxial growth for all compositions. The composition dependence of the saturation magnetization and anomalous Hall angle indicated that the magnetic compensation composition lies in the range of 0.1 ≤ x ≤ 0.15. Furthermore, X-ray magnetic circular dichroism (XMCD) analysis suggested that Pd doping induces non-collinear magnetism, leading to changes in the magnetic structure.