TY - JOUR
T1 - Helimagnetic Structure and Heavy-Fermion-Like Behavior in the Vicinity of the Quantum Critical Point in Mn3 P
AU - Kotegawa, Hisashi
AU - Matsuda, Masaaki
AU - Ye, Feng
AU - Tani, Yuki
AU - Uda, Kohei
AU - Kuwata, Yoshiki
AU - Tou, Hideki
AU - Matsuoka, Eiichi
AU - Sugawara, Hitoshi
AU - Sakurai, Takahiro
AU - Ohta, Hitoshi
AU - Harima, Hisatomo
AU - Takeda, Keiki
AU - Hayashi, Junichi
AU - Araki, Shingo
AU - Kobayashi, Tatsuo C.
N1 - Funding Information:
We thank Kazuto Akiba for experimental supports. This work was supported by JSPS KAKENHI Grants No. JP15H05882, No. JP15H05885, No. JP18H04320, and No. 18H04321 (J-Physics), No. 15H03689 and No. 15H05745. This research used resources at the High Flux Isotope Reactor and the Spallation Neutron Source, DOE Office of Science User Facilities operated by the Oak Ridge National Laboratory.
Publisher Copyright:
© 2020 American Physical Society.
PY - 2020/2/25
Y1 - 2020/2/25
N2 - Antiferromagnet Mn3P with Neel temperature TN=30 K is composed of Mn tetrahedrons and zigzag chains formed by three inequivalent Mn sites. Due to the nearly frustrated lattice with many short Mn-Mn bonds, competition of the exchange interactions is expected. We here investigate the magnetic structure and physical properties including pressure effect in single crystals of this material, and reveal a complex yet well-ordered helimagnetic structure. The itinerant character of this materials is strong, and the ordered state with small magnetic moments is easily suppressed under pressure, exhibiting a quantum critical point at ∼1.6 GPa. The remarkable mass renormalization, even in the ordered state, and an incoherent-coherent crossover in the low-temperature region, characterize an unusual electronic state in Mn3P, which is most likely effected by the underlying frustration effect.
AB - Antiferromagnet Mn3P with Neel temperature TN=30 K is composed of Mn tetrahedrons and zigzag chains formed by three inequivalent Mn sites. Due to the nearly frustrated lattice with many short Mn-Mn bonds, competition of the exchange interactions is expected. We here investigate the magnetic structure and physical properties including pressure effect in single crystals of this material, and reveal a complex yet well-ordered helimagnetic structure. The itinerant character of this materials is strong, and the ordered state with small magnetic moments is easily suppressed under pressure, exhibiting a quantum critical point at ∼1.6 GPa. The remarkable mass renormalization, even in the ordered state, and an incoherent-coherent crossover in the low-temperature region, characterize an unusual electronic state in Mn3P, which is most likely effected by the underlying frustration effect.
UR - http://www.scopus.com/inward/record.url?scp=85081789436&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85081789436&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.124.087202
DO - 10.1103/PhysRevLett.124.087202
M3 - Article
C2 - 32167310
AN - SCOPUS:85081789436
VL - 124
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 8
M1 - 087202
ER -