Structure, heat capacity and Raman spectra of mm-sized Ba$_{2}$MgWO$_{6}$ single crystals synthesized by BaCl$_{2}$-MgCl$_{2}$ flux method

التفاصيل البيبلوغرافية
العنوان: Structure, heat capacity and Raman spectra of mm-sized Ba$_{2}$MgWO$_{6}$ single crystals synthesized by BaCl$_{2}$-MgCl$_{2}$ flux method
المؤلفون: Pásztorová, Jana, Bi, Wen Hua, Gaal, Richard, Krämer, Karl, Živković, Ivica, Rønnow, Henrik M.
سنة النشر: 2022
المجموعة: Condensed Matter
مصطلحات موضوعية: Condensed Matter - Materials Science
الوصف: We present a new method of Ba$_{2}$MgWO$_{6}$ single crystal synthesis that allows to grow larger crystals using BaCl$_{2}$ and MgCl$_{2}$ flux. Difficulties to grow single crystal of a size suitable for macroscopic material property measurements caused the majority of characterisation being published on polycrystalline samples. Single crystal diffraction and energy dispersive X-ray analysis confirmed high quality of synthesised samples. Heat capacity measurements from 300~K to 2~K do not show any transitions. However, Raman spectra measured down to 77~K contain additional peaks at all temperatures probed, which is in a contrast with only 4 Raman active modes expected from the reducible representation. This calls for a more detailed study of potential symmetry breaking that could also influence the electronic properties of the material.
نوع الوثيقة: Working Paper
DOI: 10.1016/j.jssc.2023.124184
URL الوصول: http://arxiv.org/abs/2212.06270
رقم الانضمام: edsarx.2212.06270
قاعدة البيانات: arXiv
الوصف
DOI:10.1016/j.jssc.2023.124184