Abstract
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 language | English |
|---|---|
| Article number | 032079 |
| Journal | Journal of Physics: Conference Series |
| Volume | 200 |
| Issue number | SECTION 3 |
| DOIs | |
| Publication status | Published - 2010 Jan 1 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Anomalous phase of MnP at very low field. / Yamazaki, Teruo; Tabata, Y.; Waki, T.; Nakamura, H.; Matsuura, M.; Aso, N.
In: Journal of Physics: Conference Series, Vol. 200, No. SECTION 3, 032079, 01.01.2010.Research output: Contribution to journal › Conference article
}
TY - JOUR
T1 - Anomalous phase of MnP at very low field
AU - Yamazaki, Teruo
AU - Tabata, Y.
AU - Waki, T.
AU - Nakamura, H.
AU - Matsuura, M.
AU - Aso, N.
PY - 2010/1/1
Y1 - 2010/1/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=77957150638&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77957150638&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/200/3/032079
DO - 10.1088/1742-6596/200/3/032079
M3 - Conference article
AN - SCOPUS:77957150638
VL - 200
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - SECTION 3
M1 - 032079
ER -