Anomalous phase of MnP at very low field

Teruo Yamazaki*, Y. Tabata, T. Waki, H. Nakamura, M. Matsuura, N. Aso

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

7 Citations (Scopus)


Manganese phosphide MnP has been investigated for decades because of its rich magnetic phase diagram. It is well known that the MnP exhibits the ferromagnetic phase transition at TC = 292 K and the helical magnetic phase below TN = 47 K at zero field. Recently, a novel magnetic phase transition was observed at T* = 282 K when the magnetic field is lower than 5 Oe. However, the nature of the new phase has not been illuminated yet. In order to reveal it, we performed the AC and the DC magnetization measurements for a single crystal MnP at very low field. A divergent behavior of the real and the imaginary part of the AC susceptibility and a sharp increase of the DC magnetization was observed at T*, indicating the magnetic phase transition at T*. Furthermore a peculiar temperature hysteresis was observed: namely, the magnetization depends on whether cooling sample to the temperature lower than TN or not before the measurements. This hysteresis phenomenon suggests the complicated nature of the new phase and a strong relation between the magnetic state of the new phase and the helical structure.

Original languageEnglish
Article number032079
JournalJournal of Physics: Conference Series
Issue numberSECTION 3
Publication statusPublished - 2010 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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