Magneto-elastic coupling in multiferroic metal-organic framework [(CH<sub>3</sub>)<sub>2</sub>NH<sub>2</sub>]Co(HCOO)<sub>3</sub>
ORAL
Abstract
Metal-organic frameworks (MOFs) are a class of nanoporous compounds where organic groups are used in combination with transition metal ions to obtain multifunctional materials. The family of MOFs comprised of methylammonum (A= (CH3)2NH2) and metal (B=Co, Cu, Fe, Mn, Ni) cations with a formate (X=HCOO3) anion are very interesting because of their multiferroic properties [1]. Therefore, several efforts have been made to understand the exchange interactions in these materials including magnetization at magnetic fields up to 60 T and infrared spectroscopy at fields up to 35 T [2,3]. Concurrently, we performed Raman spectroscopy on [(CH3)2NH2]Co(HCOO)3 at magnetic fields up to 31T to probe the magneto-elastic coupling. Also, the effect of hydrostatic pressure on the magnetic-elastic coupling in this system was explored. We will discuss our investigations and its implications.
References:
[1] J. Am. Chem. Soc., 131, 13625 (2009).
[2] J. Mater. Chem. C, 4, 11164 (2016)
[3] Inorg. Chem. 57, 11569 (2018)
References:
[1] J. Am. Chem. Soc., 131, 13625 (2009).
[2] J. Mater. Chem. C, 4, 11164 (2016)
[3] Inorg. Chem. 57, 11569 (2018)
*This work has been performed at the user facilities in the National High Magnetic Field Laboratory (NHMFL), Tallahassee. The NHMFL is supported by the NSF through NSF/DMR-1644779 and the state of Florida. The project is also funded by DoN HBCU/MI program award # N000141713061.
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Presenters
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Komalavalli Thirunavukkuarasu
- National High Magnetic Field Laboratory, Tallahassee, FL
- Florida A&M University
- Natl High Magnetic Field Lab