Lockin to Weak Ferromagnetism in TbNi2B2C and ErNi2B2C
M. B. Walker, C. Detlefs
TL;DR
This paper presents a model explaining the coexistence of ferromagnetism and spin-density-wave lock-in transitions in certain borocarbide compounds, accounting for their magnetic properties.
Contribution
It introduces a theoretical model linking ferromagnetism with lock-in transitions in TbNi2B2C and ErNi2B2C based on wave vector conditions.
Findings
Model explains ferromagnetism in TbNi2B2C
Potential relevance to ErNi2B2C
Accounts for magnetic properties of these compounds
Abstract
This article describes a model in which ferromagnetism necessarily accompanies a spin-density-wave lockin transition in the borocarbide structure provided the commensurate phase wave vector satisfies Q = (m/n)a* with m even and n odd. The results account for the magnetic properties of TbNi2B2C, and are also possibly relevant also for those of ErNi2B2C.
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