294 citations · 1.4k across the 24 of their papers we have counts for
11 papers · 1 filter
Spintronic superconductor in a bulk layered material with natural spin-valve structure
Shunsuke Sakuragi, S. Sasaki, R. Akashi +29
Multi-layered materials provide fascinating platforms to realize various functional properties, possibly leading to future electronic devices controlled by external fields. In part…
Emergent exotic superconductivity in artificially-engineered tricolor Kondo superlattices
M. Naritsuka, T. Ishii, S. Miyake +7
In the quest for exotic superconducting pairing states, the Rashba effect, which lifts the electron-spin degeneracy as a consequence of strong spin-orbit interaction (SOI) under br…
Magnetic and superconducting properties of the heavy-fermion CeCoIn5 epitaxial film probed by nuclear quadrupole resonance
Takayoshi Yamanaka, Masaaki Shimozawa, Hiroaki Shishido +6
Since the progress in the fabrication techniques of thin-films of exotic materials such as strongly correlated heavy-fermion compounds, microscopic studies of the magnetic and elec…
From Kondo Lattices to Kondo Superlattices
Masaaki Shimozawa, Swee K. Goh, Takasada Shibauchi +1
Realizing new classes of ground states in strongly correlated electron systems continues to be at the forefront of condensed matter physics. Heavy-fermion materials, whose electron…
Dome-shaped magnetic order competing with high-temperature superconductivity at high pressures in FeSe
J. P. Sun, K. Matsuura, G. Z. Ye +12
The coexistence and competition between superconductivity and electronic orders, such as spin or charge density waves, have been a central issue in high transition-temperature (${T…
Controllable Rashba spin-orbit interaction in artificially engineered superlattices involving the heavy-fermion superconductor CeCoIn5
M. Shimozawa, S. K. Goh, R. Endo +9
By using a molecular beam epitaxy technique, we fabricate a new type of superconducting superlattices with controlled atomic layer thicknesses of alternating blocks between heavy f…
Strong suppression of superconductivity by divalent Ytterbium Kondo-holes in CeCoIn_5
M. Shimozawa, T. Watashige, S. Yasumoto +7
To study the nature of partially substituted Yb-ions in a Ce-based Kondo lattice, we fabricated high quality Ce_{1-x}Yb_xCoIn_5 epitaxial thin films using molecular beam epitaxy. W…
Anomalous Upper Critical Field in CeCoIn_5/YbCoIn_5 Superlattices with a Rashba-type Heavy Fermion Interface
S. K. Goh, Y. Mizukami, H. Shishido +9
We report a highly unusual angular variation of the upper critical field (H_c2) in epitaxial superlattices CeCoIn_5(n)/YbCoIn_5(5), formed by alternating layers of n and a 5 unit-c…
Extremely strong coupling superconductivity in artificial two-dimensional Kondo lattices
Y. Mizukami, H. Shishido, T. Shibauchi +8
When interacting electrons are confined to low-dimensions, the electron-electron correlation effect is enhanced dramatically, which often drives the system into exhibiting behavior…
Anomalous Temperature Dependence of Lower Critical Field in Ultraclean URuSi
R. Okazaki, M. Shimozawa, H. Shishido +7
To investigate a mysterious superconducting state of URu_2Si_2 embedded in the so-called hidden order state, the lower critical field H_{c1} is precisely determined down to 55 mK f…
Lower Critical Fields of Superconducting PrFeAsO Single Crystals
R. Okazaki, M. Konczykowski, C. J. van der Beek +12
We have studied the lower critical fields H_{c1} of superconducting iron oxipnictide PrFeAsO_{1-y} single crystals for H parallel and perpendicular to the ab-planes. Measurements o…