Graduate School of Science and Technology, Niigata University, Niigata 950-2181, Japan.
J Phys Condens Matter. 2013 Mar 27;25(12):126003. doi: 10.1088/0953-8984/25/12/126003. Epub 2013 Mar 1.
We present results of specific heat measurements on a Ce3Pd20Si6 single crystal and construct the magnetic phase diagram for the three cubic principal directions [100], [110] and [111]. The highly anisotropic phase diagram is discussed and can be qualitatively explained by the Zeeman splitting at the 8c-site. For B ‖ [100], the present study found two different quadrupolar ordered phases, which meet the paramagnetic phase at a tri-critical point and establish the new phase boundaries.
我们给出了 Ce3Pd20Si6 单晶的比热测量结果，并构建了三个立方主方向[100]、[110]和[111]的磁相图。我们讨论了高度各向异性的相图，并通过 8c 位的塞曼分裂定性地解释了这一现象。对于 B‖[100]，本研究发现了两个不同的四极有序相，它们在三临界点与顺磁相相遇，并建立了新的相界。
