The thermal conductivity measurements are performed on the heavy-fermion compound YbRh2Si2 down to 0.04 K and under magnetic fields through a quantum critical point (QCP) at Bc=0.66 Tâ̂\c axis. In the limit as T→0, we find that the Wiedemann-Franz...
Yo Machida Koichi Izawa Dai Aoki Georg Knebel Alexandre Pourret Jacques Flouquet
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN 82(5) 054704 2013年5月 [査読有り]
Thermoelectric power measurements on the heavy fermion antiferromagnet Ce(Ru0.92Rh0.08)(2)Si-2 under magnetic field (H) show clearly that the antiferromagnetic state below the critical field H-c similar to 2.8 T can be fully decoupled from the pse...
The thermoelectric coefficients have been measured down to a very low temperature for the Yb-based heavy-fermion compounds beta-YbAlB4 and YbRh2Si2, often considered as model systems for the local quantum criticality case. We observe a striking di...
The field-orientation dependent thermal conductivity of the heavy-fermion superconductor UPt3 was measured down to very low temperatures and under magnetic fields throughout the distinct superconducting phases: B and C phases. In the C phase, a st...
We uncover a strong anisotropy in both the anomalous Hall effect (AHE) and the magnetoresistance of the chiral spin states of Pr2Ir2O7. The AHE appearing below 1.5 K at a zero magnetic field shows hysteresis which is most pronounced for fields cyc...
人文科学研究科
理学部