Helimagnetic Structure and Heavy-Fermion-Like Behavior in the Vicinity of the Quantum Critical Point in Mn3 P
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 structur...
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| Veröffentlicht in: | Physical review letters 2020-02, Vol.124 (8) |
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| creator | Kotegawa, Hisashi Matsuda, Masaaki Ye, Feng Tani, Yuki Uda, Kohei Kuwata, Yoshiki Tou, Hideki Matsuoka, Eiichi Sugawara, Hitoshi Sakurai, Takahiro Ohta, Hitoshi Harima, Hisatomo Takeda, Keiki Hayashi, Junichi Araki, Shingo Kobayashi, Tatsuo |
| description | 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. |
| doi_str_mv | 10.1103/PhysRevLett.124.087202 |
| format | Article |
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| source | American Physical Society Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY Frustrated magnetism Heavy-fermion systems Helimagnets Quantum criticality |
| title | Helimagnetic Structure and Heavy-Fermion-Like Behavior in the Vicinity of the Quantum Critical Point in Mn3 P |
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