Single crystal growth and physical properties of pyroxene CoGeO$_3$

A. C. Komarek; C. Geibel; C. T. Chen; D. I. Khomskii; H. Guo; H. J. Lin; L. H. Tjeng; L. Zhao; Z. Hu

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Single crystal growth and physical properties of pyroxene CoGeO₃

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arxiv 2103.14505 v1 pith:RCW3N44M submitted 2021-03-26 cond-mat.mtrl-sci

Single crystal growth and physical properties of pyroxene CoGeO₃

L. Zhao , Z. Hu , H. Guo , C. Geibel , H. J. Lin , C. T. Chen , D. I. Khomskii , L. H. Tjeng

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A. C. Komarek

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classification cond-mat.mtrl-sci

keywords singlecogeomagneticpropertiescrystalsmomentsphysicalanisotropic

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We report on the synthesis and physical properties of cm-sized CoGeO$_3$ single crystals grown in a high pressure mirror furnace at pressures of 80~bar. Direction dependent magnetic susceptibility measurements on our single crystals reveal highly anisotropic magnetic properties that we attribute to the impact of strong single ion anisotropy appearing in this system with T$_N$~$\sim$~33.5~K. Furthermore, we observe effective magnetic moments that are exceeding the spin only values of the Co ions which reveals the presence of sizable orbital moments in CoGeO$_3$.

Single crystal growth and physical properties of pyroxene CoGeO₃

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