The Er doping of ZnCr2O4
Chen Yang, Danrui Ni, Nan Yao, and Robert J. Cava
TL;DR
This study demonstrates that even minimal Er3+ doping in ZnCr2O4 significantly alters its frustrated magnetic properties and low-temperature ordering, using spectroscopic evidence to confirm successful doping.
Contribution
It provides new insights into how trace Er3+ doping influences the magnetic behavior of ZnCr2O4, a well-studied frustrated spinel.
Findings
Er3+ successfully dopes into ZnCr2O4 at levels below 0.005
Doping significantly affects magnetic frustration and ordering near 12 K
Spectroscopy confirms incorporation of Er3+ into the spinel structure
Abstract
Magnetic Er3+ is doped into the well-studied frustrated normal spinel ZnCr2O4. Various spectroscopies are employed to prove that Er3+ successfully enters the spinel to form ZnCr2-xErxO4 for x less than 0.005. The low levels of Er3+ doping possible nonetheless have a significant effect on the frustrated magnetism and the ordering that is seen near 12 K in the undoped material.
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Taxonomy
TopicsMultiferroics and related materials · Advanced Condensed Matter Physics · Magnetic Properties and Synthesis of Ferrites