Anomalous phase of MnP at very low field

Details Anomalous phase of MnP at very low field Anomalous phase of MnP at very low field

2009-08-13

arxiv.org/abs/0908.1934v1

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 2 figures

Scientific paper

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.

Affiliated with

Also associated with

No associations

Rating

Anomalous phase of MnP at very low field does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Anomalous phase of MnP at very low field, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anomalous phase of MnP at very low field will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-701758