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

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

doi:10.3390/cryst11040378

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

Materials Science 2021-04-07 v1

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

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Abstract

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 $_3$ .

Keywords

CoGeO3 single crystal growth magnetic susceptibility single ion anisotropy orbital moment

Cite

@article{arxiv.2103.14505,
  title  = {Single crystal growth and physical properties of pyroxene CoGeO$_3$},
  author = {L. Zhao and Z. Hu and H. Guo and C. Geibel and H. J. Lin and C. T. Chen and D. I. Khomskii and L. H. Tjeng and A. C. Komarek},
  journal= {arXiv preprint arXiv:2103.14505},
  year   = {2021}
}

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