ISIS Neutron and Muon Source Data Journal

Magnetic-field induced quantum phases in a magnetically frustrated Yb-zigzag chain system YbCuS2

Abstract: In a Yb-based semiconductor YbCuS2, where trivalent Yb ions form a low-dimensional zigzag chain, the competitive AFM interactions enhance magnetic fluctuations due to the magnetic frustration. A phase transition occurs at TO = 0.95 K, where the magnetic entropy is reduced to 20% of Rln2. TO is robust for B < 4 T, and TO increases to higher temperatures but decreases for B > 7 T. The peculiar phase diagram suggests manifestation of magnetic-field induced quantum phases. Magnetic reflections were observed below TO by powder neutron diffraction experiments at WISH. The magnetic structure is characterized by an incommensurate propagation vector and the ordered moment is reduced. The aim of the present experiment is to investigate evolution of the order parameters and possible magnetic structures in the magnetic-field induced phases by the neutron diffraction measurements on WISH.

Principal Investigator: Professor Takahiro Onimaru
Experimenter: Dr Yasuyuki Shimura
Experimenter: Dr RAJESH TRIPATHI
Experimenter: Professor Kenji OYAMA
Local Contact: Dr Dmitry Khalyavin
Experimenter: Dr Devashi Adroja
Experimenter: Dr Yuka Kusanose
Experimenter: Miss Rikako Yamamoto

DOI: 10.5286/ISIS.E.RB2210146

ISIS Experiment Number: RB2210146

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
Select the data format above to find out more about it.

Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Professor Takahiro Onimaru et al; (2022): Magnetic-field induced quantum phases in a magnetically frustrated Yb-zigzag chain system YbCuS2, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2210146

Data is released under the CC-BY-4.0 license.