Magnetic phase diagram of clathrate compound Ce3Pd20Si6 with quadrupolar ordering


Magnetic phase diagram of clathrate compound Ce3Pd20Si6 with quadrupolar ordering

Ono, H.; Nakano, T.; Takeda, N.; Ano, G.; Akatsu, M.; Nemoto, Y.; Goto, T.; Dönni, A.; Kitazawa, H.

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.

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Publ.-Id: 19438