Approximately 25-nm-thick $\mathrm{M}{\mathrm{n}}_{4-x}\mathrm{P}{\mathrm{d}}_x\mathrm{N}$ epitaxial thin films were deposited on ${\mathrm{SrTiO}}_3$(001) by molecular beam epitaxy, and the existence of a magnetization compensation composition $\left(x_{\mathrm{MC}}\right)$ of approximately 0.15 at room temperature was demonstrated. The substitution of Mn by Pd at the corner sites was confirmed by x-ray absorption near-edge structure measurements. The magnetic field-dependent x-ray magnetic circular dichroism (XMCD) spectra revealed that the magnetic structure of $\mathrm{M}{\mathrm{n}}_{4-x}\mathrm{P}{\mathrm{d}}_x\mathrm{N}$ was significantly different below and above $x_{\mathrm{MC}}$. This result is different from previously reported Ni- and Co-doped ${\mathrm{Mn}}_4\mathrm{N}$ epitaxial thin films. The magnetic structure of $\mathrm{M}{\mathrm{n}}_{4-x}\mathrm{P}{\mathrm{d}}_x\mathrm{N}$ was assessed based on various magnetic properties, such as magnetization curves, anomalous Hall effect loops, magneto-optical Kerr effect loops, and XMCD spectra.

Close

PrevNext

View figure in article

• Magnetic order
• Magnetism
• Magnetotransport
• Spintronics