Regensburg 2025 – scientific programme
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MA: Fachverband Magnetismus
MA 40: Frustrated Magnets II
MA 40.2: Talk
Thursday, March 20, 2025, 15:15–15:30, H20
Crystal growth and anisotropic magnetic properties of quasi-one-dimensional zigzag chain antiferromagnet: CaCoP2O7 — •Koushik Chakraborty1, Aditi Agrawal1, Isha Isha1, M. Isobe2, and Arvind Kumar Yogi1 — 1UGC-DAE Consortium for Scientific Research, University Campus, Khandwa Road, Indore-452001, India — 2Max-Planck-Institut f\"{u}r Festk\"{o}rperforschung, Heisenbergstr. 1, D-70569 Stuttgart, Germany
We report crucible free optical floating zone crystal growth and anisotropic magnetic properties of quasi-one-dimensional zigzag chain antiferromagnetic compound CaCoP2O7. In this quasi one-dimensional zigzag chain compound, magnetic lattice is formed by the Co2+ ions. We have characterized the single-crystals and analyzed them by using x-ray and Laue diffraction which reveals single-phase nature and the as grown single-crystals were found of ultra high quality. Magnetic susceptibility and magnetization measurements reveal antiferromagnetic ordering, evidenced by a pronounced downturn in susceptibility below the Neel temperature (TN =6.6 K) and negative Curie-Weiss temperatures (Theta-CW = -39.4 K). Further, we found clear signature of field-induced phase transition where on application of field AFM order is going to quantum paramagnetic state or maybe liquid phase (which needs further study to confirm).
Keywords: Quantum Magnets; Antiferromagnetism; Quantum Materials; One-dimensional chains; Frustrated lattice