328 citations · 2.9k across the 53 of their papers we have counts for
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Controlling unconventional superconductivity in artificially engineered -electron Kondo superlattices
Masahiro Naritsuka, Takahito Terashima, Yuji Matsuda
Unconventional superconductivity and magnetism are intertwined on a microscopic level in a wide class of materials, including high- cuprates, iron pnictides, and heavy-fermion…
Spontaneous emergence of Josephson junctions in homogeneous rings of single-crystal Sr2RuO4
Yuuki Yasui, Kaveh Lahabi, Victor Fernández Becerra +7
The chiral p-wave order parameter in SrRuO would make it a special case amongst the unconventional superconductors. A consequence of this symmetry is the…
Universal relationship between low-energy antiferromagnetic fluctuations and superconductivity in BaFe(AsP)
Shunsaku Kitagawa, Takeshi Kawamura, Kenji Ishida +5
To identify the key parameter for optimal superconductivity in iron pnictides, we measured the P-NMR relaxation rate on BaFe(AsP) ( and 0…
Coupling between heavy fermion superconductor CeCoIn and antiferromagnetic metal CeIn through the atomic interface
M. Naritsuka, S. Nakamura, Y. Kasahara +3
To study the mutual interaction between unconventional superconductivity and magnetic order through an interface, we fabricate Kondo superlattices consisting of alternating layers…
Tuning the pairing interaction in a -wave superconductor by paramagnons injected through interfaces
M. Naritsuka, P. F. S. Rosa, Y. Luo +9
Unconventional superconductivity and magnetism are intertwined on a microscopic level in a wide class of materials. A new approach to this most fundamental and hotly debated issue…
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…
Little-Parks oscillations with half-quantum fluxoid features in Sr2RuO4 micro rings
Yuuki Yasui, Kaveh Lahabi, Muhammad Shahbaz Anwar +5
In a micro ring of a superconductor with a spin-triplet equal-spin pairing state, a fluxoid, a combined object of magnetic flux and circulating supercurrent, can penetrate as half-…
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…
Giant superconducting fluctuations in the compensated semimetal FeSe at the BCS-BEC crossover
S. Kasahara, T. Yamashita, A. Shi +12
The physics of the crossover between weak-coupling Bardeen-Cooper-Schrieffer (BCS) and strong-coupling Bose-Einstein-condensate (BEC) limits gives a unified framework of quantum bo…
Conventional s-wave superconductivity in BiS2-based NdO0.71F0.29BiS2 revealed by thermal transport measurements
T. Yamashita, Y. Tokiwa, D. Terazawa +5
To study the superconducting gap structure of BiS-based layered compound NdOFBiS ( = 5 K), we measured the thermal conductivity , which…
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…
Normal state spin dynamics in the iron-pnictide superconductors BaFe2(As1-xPx)2 and Ba(Fe1-xCox)2As2 probed with NMR measurements
Y. Nakai, T. Iye, S. Kitagawa +6
The NMR results in iron pnictides BaFe2(As1-xPx)2 and Ba(Fe1-xCox)2As2 are analyzed based on the self-consistent renormalization (SCR) spin fluctuation theory. The temperature depe…
Disorder, critical currents, and vortex pinning energies in isovalently substituted BaFe(AsP)
Sultan Demirdis, Yanina Fasano, Shigeru Kasahara +6
We present a comprehensive overview of vortex pinning in single crystals of the isovalently substituted iron-based superconductor BaFe(AsP), a material th…
Importance of both spin and orbital fluctuations in BaFe2(As1-xPx)2 : Evidence from superconducting gap anisotropy
T. Yoshida, S. Ideta, T. Shimojima +32
In the iron pnictide superconductors, two distinct unconventional mechanisms of superconductivity have been put forth: One is mediated by spin fluctuations leading to the s+- state…
A Sharp Peak of the Zero-Temperature Penetration Depth at Optimal Composition in BaFe2(As1-xPx)2
K. Hashimoto, K. Cho, T. Shibauchi +14
In a superconductor, the ratio of the carrier density, , to their effective mass, , is a fundamental property directly reflecting the length scale of the superfluid flow, t…
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…
Thermodynamic phase diagram and phase competition in BaFe2(As1-xPx)2 studied by thermal expansion
A. E. Böhmer, P. Burger, F. Hardy +11
High-resolution thermal-expansion and specific-heat measurements were performed on single crystalline BaFe2(As1-xPx)2 (0 < x < 0.33, x = 1). The observation of clear anomalies allo…
Contrasts in electron correlations and inelastic scattering between LiFeAs and LiFeP revealed by charge transport
S. Kasahara, K. Hashimoto, H. Ikeda +3
By using high-quality single crystals, we quantitatively compare the transport properties between LiFeAs and LiFeP superconductors with compensated electron and hole carriers. The…
Microscopic Evidence of Direct Coupling between Magnetic and Superconducting Order Parameters in BaFe(AsP)
T. Iye, Y. Nakai, S. Kitagawa +5
The coexistence of magnetism and superconductivity in the isovalent-P-substituted BaFe(AsP) has been investigated microscopically by P-NMR measurements.…
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…
Volovik effect in a highly anisotropic multiband superconductor: experiment and theory
Y. Wang, J. S. Kim, G. R. Stewart +7
We present measurements of the specific heat coefficient γ(= C/T) in the low temperature limit as a function of an applied magnetic field for the Fe-based superconductor BaFe(A…
Reply to Comment by Borisenko et al. on article `A de Haas-van Alphen study of the Fermi surfaces of superconducting LiFeP and LiFeAs'
C. Putzke, A. I. Coldea, I. Guillamon +10
Recently, Borisenko et al have posted a Comment (arXiv:1108.1159) where they suggest an alternative interpretation of our de Haas-van Alphen (dHvA) measurements on the superconduct…
Nodeless vs nodal order parameters in LiFeAs and LiFeP superconductors
K. Hashimoto, S. Kasahara, R. Katsumata +7
High-precision measurements of magnetic penetration depth in clean single crystals of LiFeAs and LiFeP superconductors reveal contrasting low-energy quasiparticle excitations.…