Entropy landscape and field-tuned thermodynamics of the large-spin Shastry-Sutherland magnet ${\mathrm{Eu}}_{2}{\mathrm{MgSi}}_{2}{\mathrm{O}}_{7}$ (opens in new tab)

Author(s): Huanpeng Bu, Han Ge, Fangli Li, Lei Xu, Jiayue Yuan, Tiantian Li, Junzhe Liu, Jian Chen, Ying Fu, Nan Zhao, Zhongwen Ouyang, Ping Miao, Jieming Sheng, and Liusuo WuWe present a comprehensive study of the low-temperature magnetism and field-tuned thermodynamics of the layered Shastry-Sutherland compound ${\mathrm{Eu}}_{2}{\mathrm{MgSi}}_{2}{\mathrm{O}}_{7}$. ${\mathrm{Eu}}^{2+}$ ions ($4{f}^{7}, S=7/2$) form a quasi-two-dimensional orthogonal-dimer network, rea…[Phys. Rev. B 113, 21...