Polarized neutron diffraction study in helical magnetic phases of MnP

Conference · 01 December 2018 · Physica. B, Condensed Matter

DOI:https://doi.org/10.1016/j.physb.2017.11.023· OSTI ID:1489609

Matsuda, Masaaki ^[1]; Dissanayake, Sachith E. ^[1]; Cheng, J.-G. ^[2]; Ma, J. ^[3]; Yan, Jiaqiang ^[1]; Uwatoko, Yoshiya ^[4]

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1. ORNL
2. Chinese Academy of Sciences (CAS), Beijing National Laboratory for Condensed Matter Physics
3. Shanghai Jiao Tong University, China
4. University of Tokyo, Japan

MnP shows an interesting magnetic phase diagram under pressure up to ~7.5 GPa, where magnetic long range order disappears and superconductivity appears. Polarized neutron analyses were applied to two different helical magnetic structures (helical-c and helical-b). Helicity was observed in the both structures. The two helical domain ratio becomes more unbalanced in the helical-b structure at a higher pressure, suggesting that the Dzyaloshinskii-Moriya interaction, which is enhanced by a local structural strain, could be related with the helical structures.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1489609
• Journal Information: Physica. B, Condensed Matter, Vol. 551; Conference: International Conference on Neutron Scattering 2017 - Daejeon, South Korea - 7/9/2017 8:00:00 AM-7/13/2017 8:00:00 AM, Daejeon, South Korea, 7/09 - 7/13/2017; ISSN 0921-4526
• Publisher: Elsevier
• Country of Publication: United States
• Language: English