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

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

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.

Language

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English

Journal

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New Physics; Sae Mulli

Volume

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73

Number

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12

Pages

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p.1170 - 1173

Publication Year/Month

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2023/12

Meeting title

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International Conference on Strongly Correlated Electron Systems 2023 (SCES 2023)

Held date

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2023/07

Location (city)

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Incheon

Location (country)

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Korea

Patent information

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PDF

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Paper URL

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

DOI for research data

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Keywords

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no keyword

Research Facility

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JRR-3M(研究炉3)  

Press Release

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Article of JAEA R&D Review

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Cooperating Institute

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Accesses

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- Accesses

InCites™

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Altmetrics

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