494 citations · 2.3k across the 67 of their papers we have counts for
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Thermodynamic Study of Nodal Structure and Multiband Superconductivity of KFe2As2
Shunichiro Kittaka, Yuya Aoki, Naoki Kase +12
The temperature, field, and field-orientation dependences of the electronic specific heat Ce of the ironpnictide superconductor KFe2As2 have been investigated. Thermodynamic eviden…
Verification of Anisotropic s-Wave Superconducting Gap Structure in CeRu2 from Low-Temperature Field-Angle-Resolved Specific Heat Measurements
Shunichiro Kittaka, Toshiro Sakakibara, Masato Hedo +2
The field-angle-resolved specific heat C(T,H,phi) of the f-electron superconductor CeRu2 (Tc=6.3 K) has been measured at low temperatures down to 90 mK on two single crystals of sl…
Singlet-triplet Crossover in the Two-dimensional Dimer Spin System YbAl3C3
Shunichiro Kittaka, Tomoyoshi Sugiyama, Yasuyuki Shimura +3
Low-temperature magnetization (M) measurements down to 0.1 K have been performed in magnetic fields up to 14.5 T for a single piece of a tiny single-crystalline sample (0.2 mg weig…
Multiband superconductivity with unexpected deficiency of nodal quasiparticles in CeCu2Si2
Shunichiro Kittaka, Yuya Aoki, Yasuyuki Shimura +6
Superconductivity in the heavy-fermion compound CeCu2Si2 is a prototypical example of Cooper pairs formed by strongly correlated electrons. For more than 30 years, it has been beli…
Anomalous Field-Angle Dependence of the Specific Heat of Heavy-Fermion Superconductor UPt3
Shunichiro Kittaka, Koji An, Toshiro Sakakibara +5
We have investigated the field-angle variation of the specific heat C(H, phi, theta) of the heavy-fermion superconductor UPt3 at low temperatures T down to 50 mK, where phi and the…