Rawl, R., Ge, L., Lu, Z., Evenson, Z., Dela Cruz, C. R., Huang, Q., Lee, M., Choi, E. S., Mourigal, M., Zhou, H. D., Ma, J., "Ba8MnNb6O24: A model two-dimensional spin-5/2 triangular lattice antiferromagnet", Physical Review Materials, 2019