NMR Investigation of the Diluted Magnetic Semiconductor Li(Zn1-xMnx)P (x = 0.1)

TL;DR

This study uses NMR techniques to analyze the magnetic properties of Mn spins in the diluted magnetic semiconductor Li(Zn1-xMnx)P with x=0.1, revealing extended Mn spin interactions and local site information.

Contribution

It provides detailed NMR analysis of Mn spin behavior and interactions in Li(Zn1-xMnx)P, a less-studied diluted magnetic semiconductor.

Findings

Identified 7Li NMR signals near Mn2+ sites.

Demonstrated Mn spin-spin interactions extend over multiple unit cells.

Probed static and dynamic Mn spin properties.

Abstract

We employ NMR techniques to investigate the nature of Mn spins in the I-II-V diluted magnetic semiconductor Li(Zn1-xMnx)P (x = 0.1, Curie temperature Tc = 25 K). We successfully identify the 7Li NMR signals arising from the Li sites adjacent to Mn2+, and probe the static and dynamic properties of Mn spins. From the NMR spin-lattice relaxation data, we show that the Mn spin-spin interactions extend over many unit cells.