A pyroxene-based quantum magnet with multiple magnetization plateaus.

ABSTRACT: Pyroxenes (AMX₂O₆) consisting of infinite one-dimensional edge-sharing MO₆ chains and bridging XO₄ tetrahedra are fertile ground for finding quantum materials. Thus, here, we have studied calcium cobalt germanate (CaCoGe₂O₆) and calcium cobalt silicate (CaCoSi₂O₆) crystals in depth. Heat capacity data show that the spins in both compounds are dominantly Ising-like, even after being manipulated by high magnetic fields. On cooling below the Néel temperatures, a sharp field-induced transition in magnetization is observed for CaCoGe₂O₆, while multiple magnetization plateaus beneath the full saturation moment are spotted for CaCoSi₂O₆. Our analysis shows that these

SUBMITTER: Jin L 

PROVIDER: S-EPMC11468919 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature