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Journal Articles

Neutron scattering study of antiferromagnet U$$_{2}$$Pt$$_{6}$$Al$$_{15}$$

Ota, Kyugo*; Matsumoto, Yuji*; Watabe, Yuki*; Kaneko, Koji; Tabata, Chihiro; Haga, Yoshinori

New Physics; Sae Mulli, 73(12), p.1170 - 1173, 2023/12

https://doi.org/10.3938/NPSM.73.1170

We have performed the neutron scattering study of antiferromagnet U$$_{2}$$Pt$$_{6}$$Al$$_{15}$$ with the honeycomb lattice to determine the magnetic structure. U$$_{2}$$Pt$$_{6}$$Al$$_{15}$$ exhibits two phase transitions at $$T_{rm m1}$$ = 9 K and $$T_{rm m2}$$ = 26 K. In phase I at $$T_{rm m1}$$ $$<$$ $$T$$ $$<$$ $$T_{rm m2}$$, the magnetic reflections described by a propagation vector $$kappa$$$$_{rm I}$$ = (1/3, 0, 0) were observed. In phase II at $$T$$ $$<$$ $$T_{rm m1}$$, magnetic reflections of $$kappa$$$$_{rm I}$$ = (1/3, 0, 0) and $$kappa$$$$_{rm II}$$ = (1/2, 0, 0) were observed and the magnetic reflection intensity of $$kappa$$$$_{rm I}$$ = (1/3, 0, 0) is weak but finite. The hysteresis in the temperature dependent intensities is observed across the phase transition at $$T_{rm m1}$$, suggesting that the transition at $$T_{rm m1}$$ is of first order.

Journal Articles

Synthesis, crystal structure, local structure, and magnetic properties of polycrystalline and single-crystalline Ce$$_2$$Pt$$_6$$Al$$_{15}$$

Ota, Kyugo*; Watabe, Yuki*; Haga, Yoshinori; Iesari, F.*; Okajima, Toshihiko*; Matsumoto, Yuji*

Symmetry (Internet), 15(8), p.1488_1 - 1488_13, 2023/07

https://doi.org/10.3390/sym15081488
 Times Cited Count：1 Percentile：60.94(Multidisciplinary Sciences)

Oral presentation

Magnetic order in the honeycomb layered system U$$_{2}$$Pt$$_{6}$$Ga$$_{15}$$

Tabata, Chihiro; Kaneko, Koji; Haga, Yoshinori; Kon, Fusako*; Hibino, Ruo*; Ota, Kyugo*; Matsumoto, Yuji*; Amitsuka, Hiroshi*; Nakao, Hironori*

no journal, , 

no abstracts in English

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