The subtle interplay between competing degrees of freedom and frustration-induced strong quantum fluctuations in correlated quantum materials can lead to exotic states such as quantum spin liquids with fractional excitations that have the potential to address some of the recurring themes in condensed matter [1-2]. Quantum spin liquid is a highly entangled state of quantum matter wherein strong quantum fluctuations preclude symmetry-breaking phase transitions down to absolute temperature. This exotic state of matter is characterized by non-local spin correlations and fractional quantum numbers. In this talk, I will present some of our recent results on a few selected frustrated quantum materials [1-4].


References
1. T. Arh*, B. Sana*, M. Pregelj, P. Khuntia, Z. Jaglicic, M. D. Le, P. K. Biswas, P. Manuel, L. Mangin-Thro, A. Ozarowski, and A. Zorko, “The Ising triangular-lattice antiferromagnet neodymium heptatantalate as a quantum spin liquid candidate”, Nature Materials 21, 416 (2022).
2. J. Khatua*, B. Sana*, A. Zorko, M. Gomilsek,K. Sethupathi, M. S. Ramachandra Rao,M. Baenitz, B. Schmidt, and P. Khuntia, “Experimental signatures of quantum and topological states in frustrated magnetism”, Physics Reports 1041, 1 (2023).
3. B. Sana, M. Barik, M. Pregelj, U. Jena, M. Baenitz, J. Sichelschmidt, K. Sethupathi, and P. Khuntia, “Magnetic properties of a spin-orbit entangled Jeff = 1/2 three-dimensional frustrated rare-earth hyperkagome material”, Physical Review B 108, 134413 (2023).
4. B. Sana M. Barik, S. Lee, U. Jena, M. Baenitz, J. Sichelschmidt, S. Luther, H. Kuhne, K. Sethupathi, M. S. Ramachandra Rao, K. Y. Choi, and P. Khuntia, “Spin-liquid-like state in a square lattice antiferromagnet”, arXiv:2304.13116 (2023)”.

*Joint first author