Regensburg 2019 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 51: Magnetism Poster B

MA 51.41: Poster

Donnerstag, 4. April 2019, 15:00–18:00, Poster C

Spectroscopic and thermodynamic investigation of the new alternating chain system Fe(Te,Se)₂O₅Cl — •Kseniia Denisova^1,2,3, Dirk Wulferding^1,2, Peter Lemmens^1,2, Peter Berdonosov⁴, Ekaterina Kozlyakova³, and Alexander Vasiliev³ — ¹IPKM, TU-BS, Braunschweig, Germany — ²LENA, TU-BS, Braunschweig, Germany — ³Dept. of Phys., MSU, Moscow, Russia — ⁴Dept. of Chem., MSU, Moscow, Russia

In the search for new materials with specific magnetic properties, the exploration of isostructural relatives of already known multiferroics [1,2] is essential. Alternating antiferromagnetic spin chains of Fe in a high spin state and Te, Se, both containing lone pair electrons, make Fe(Te,Se)₂O₅Cl a promising candidate for particular magnetic properties [3]. Being sensitive to many degrees of freedom, Raman scattering is a helpful tool to reveal an interplay of lattice dynamic and magnetism. Supported by DFG-LE967/16-1, RFBR project 16-03-00463a. [1] Choi, et al. JPCM 26, 086001 (2014). [2] Kim, et al., Phys. Status Solidi B 252, No. 4, 653 (2015). [3] Akhrorov, et al., Solid State Sciences 74, 37 (2017).