Longitudinal relaxation time due to RKKY coupling in mixed-valence HgFeSe

Z. Wilamowski, W. Jantsch, G. Hendorfer

Research output: Contribution to journalArticlepeer-review


The authors investigate the electron paramagnetic resonance (EPR) linewidth and amplitude of the Fe3+ ions in semimetallic HgSe:Fe. An effective spin relaxation mechanism caused by RKKY coupling between Fe3+ and Fe2+ ions is proposed to explain the experimental data. They conclude that the strongly nonuniform relaxation rate originating from the nonuniformity of the local environment of Fe3+, leads to a decrease of the EPR amplitude as observed in experiment.

Original languageEnglish
Article number006
Pages (from-to)S26-S29
JournalSemiconductor Science and Technology
Issue number1S
Publication statusPublished - 1993
Externally publishedYes


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