978 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Kyoto UniversityJP223 papers
- The University of TokyoJP53 papers
- The University of OsakaJP48 papers
- Kyoto Bunkyo UniversityJP45 papers
- Tohoku UniversityJP29 papers
- Japan Science and Technology AgencyJP26 papers
- Brookhaven National LaboratoryUS19 papers
- High Energy Accelerator Research OrganizationJP18 papers
- National Institute of Advanced Industrial Science and TechnologyJP18 papers
- Spintronics Research Network of JapanJP16 papers
- Korea Advanced Institute of Science and TechnologyKR13 papers
- Tokyo Institute of TechnologyJP13 papers
41 papers · 1 filter
Observation of the crossover from quantum fluxoid to half-quantum fluxoid in a chiral superconducting device
Masashi Tokuda, Fumiya Matsumoto, Noriaki Maeda +16
Topological superconductors are one of the intriguing material groups from the viewpoint of not only condensed matter physics but also industrial application such as quantum comput…
Field-free superconducting diode effect in noncentrosymmetric superconductor/ferromagnet multilayers
Hideki Narita, Jun Ishizuka, Ryo Kawarazaki +8
The diode effect is fundamental to electronic devices and is widely used in rectifiers and AC-DC converters. At low temperatures, however, conventional semiconductor diodes possess…
Cu NQR and NMR Studies of Optimally Doped Ca2-xNaxCuO2Cl2
Y. Itoh, T. Machi, I. Yamada +2
We report on Cu nuclear quadrupole resonance (NQR) and NMR studies of an optimally hole-doped superconductor Ca2-xNaxCuO2Cl2 (Tc ~ 28 K for x ~ 0.2). In spite of robust oxygen comp…
Coherence factors in a high-Tc cuprate probed by quasi-particle scattering off vortices
T. Hanaguri, Y. Kohsaka, M. Ono +7
Coherence factors are a hallmark of superconductivity as a pair-condensation phenomenon. When electrons pair, quasi-particles develop an acute sensitivity to different types of sca…
Effect of Zn substitution for Cu on CaNaCuOCl near the hole concentration of 1/8 per Cu
K. H. Satoh, M. Hiraishi, M. Miyazaki +8
A weakening of superconductivity upon substitution of Cu by Zn (0.5~1 %) is observed in a high-T_c cuprate, Ca_{2-x}Na_xCuO2Cl2, near the hole concentration of 1/8 per Cu. The supe…
Quasi-particle interference and superconducting gap in a high-temperature superconductor Ca2-xNaxCuO2Cl2
T. Hanaguri, Y. Kohsaka, J. C. Davis +7
High-transition-temperature (high-Tc) superconductivity is ubiquitous in the cuprates containing CuO2 planes but each cuprate has its own character. The study of the material depen…
An Intrinsic Bond-Centered Electronic Glass with Unidirectional Domains in Underdoped Cuprates
Y. Kohsaka, C. Taylor, K. Fujita +9
Removing electrons from the CuO2 plane of cuprates alters the electronic correlations sufficiently to produce high-temperature superconductivity. Associated with these changes are…
Effects of Superconductivity and Charge Order on the sub-Terahertz reflectivity of LaBaSrCuO
M. Ortolani, P. Calvani, S. Lupi +4
The reflectivity of both the plane and the c axis of two single crystals of LaBaSrCuO has been measured down to 5 cm, using cohe…
Muon Spin Relaxation Studies of Magnetic-Field-Induced Effects in High- Superconductors
A. T. Savici, A. Fukaya, I. M. Gat-Malureanu +19
Muon spin relaxation (SR) measurements in high transverse magnetic fields () revealed strong field-induced quasi-static magnetism in the underdoped and Eu dope…
Angle-Resolved Photoemission Spectroscopy of the Antiferromagnetic Superconductor Nd1.87Ce0.13CuO4: Anisotropic Spin-Correlation Gap, Pseudogap, and the Induced Quasiparticle Mass Enhancement
H. Matsui, K. Terashima, T. Sato +6
We performed high-resolution angle-resolved photoemission spectroscopy on Nd1.87Ce0.13CuO4, which is located at the boundary of the antiferromagnetic (AF) and the superconducting p…
Soft phonons and structural phase transitions in LaBaCuO
H. Kimura, Y. Noda, H. Goka +3
Soft phonon behavior associated with a structural phase transition from the low-temperature-orthorhombic (LTO) phase ( symmetry) to the low-temperature-tetragonal (LTT) phase…
A `checkerboard' electronic crystal state in lightly hole-doped Ca_{2-x}Na_{x}CuO_{2}Cl_{2}
T. Hanaguri, C. Lupien, Y. Kohsaka +5
The phase diagram of hole-doped copper oxides shows four different electronic phases existing at zero temperature. Familiar among these are the Mott insulator, high-transition-temp…
Charge dynamics of Ca_{2-x}Na_{x}CuO_{2}Cl_{2} as a correlated electron system with the ideal tetragonal lattice
K. Waku, T. Katsufuji, Y. Kohsaka +6
We report the reflectivity and the resistivity measurement of Ca_{2-x}Na_{x}CuO_{2}Cl_{2} (CNCOC), which has a single-CuO2-plane lattice with no orthorhombic distortion. The doping…
Strong correlation between field-induced magnetism and superconductivity in PrLaCeCuO
R. Kadono, K. Ohishi, A. Koda +5
We report the local magnetic response of an electron-doped cuprate superconductor, PrLaCeCuO ( K), studied by muon spin rotation (\msr) over a…
Missing Quasiparticles and the Chemical Potential Puzzle in the Doping Evolution of the Cuprate Superconductors
K. M. Shen, F. Ronning, D. H. Lu +12
The evolution of CaNaCuOCl from Mott insulator to superconductor was studied using angle-resolved photoemission spectroscopy. By measuring both the excita…
Imaging nano-scale electronic inhomogeneity in lightly doped Mott insulator Ca_{2-x}Na_{x}CuO_{2}Cl_{2}
Y. Kohsaka, K. Iwaya, S. Satow +4
The spatial variation of electronic states was imaged in the lightly doped Mott insulator Ca_{2-x}Na_{x}CuO_{2}Cl_{2} using scanning tunneling microscopy / spectroscopy (STM/STS).…
Fully Gapped Single-Particle Excitations in the Lightly Doped Cuprates
K. M. Shen, T. Yoshida, D. H. Lu +23
The low-energy excitations of the lightly doped cuprates were studied by angle-resolved photoemission spectroscopy. A finite gap was measured over the entire Brillouin zone, includ…
Evidence for an incommensurate magnetic resonance in La(2-x)Sr(x)CuO(4)
J. M. Tranquada, C. H. Lee, K. Yamada +3
We study the effect of a magnetic field (applied along the c-axis) on the low-energy, incommensurate magnetic fluctuations in superconducting La(1.82)Sr(0.18)CuO(4). The incommensu…
Magnetic Ground State of PrLaCeCuO with Varied Oxygen Depletion Probed by Muon Spin Relaxation
Ryosuke Kadono, Kazuki Ohishi, Akihiro Koda +5
The magnetic ground state of an electron-doped cuprate superconductor PrLaCeCuO () has been studied by means of muon spin rotation/relaxa…
Synchrotron X-ray diffraction study of a charge stripe order in 1/8-doped LaBaSrCuO
H. Kimura, H. Goka, M. Fujita +3
Lattice distortions associated with charge stripe order in 1/8 hole-doped LaBaSrCuO are studied using synchrotron X-ray diffraction for a…
Fermi-liquid ground state in n-type copper-oxide superconductor Pr0.91Ce0.09LaCuO4-y
G. -q. Zheng, T. Sato, Y. Kitaoka +2
We report nuclear magnetic resonance studies on the low-doped n-type copper-oxide Pr_{0.91}LaCe_{0.09}CuO_{4-y} (T_c=24 K) in the superconducting state and in the normal state unco…
Angle-resolved photoemission spectroscopy of Na-doped Ca2CuO2Cl2 single crystals: Fingerprints of a magnetic insulator in a heavily underdoped superconductor
Y. Kohsaka, T. Sasagawa, F. Ronning +7
Electronic evolution from an antiferromagnet to a high-Tc superconductor is revealed by angle-resolved photoemission experiments on tetragonal Ca(1.9)Na(0.1)CuO(2)Cl(2) single crys…
Spin Pseudo Gap in La2-xSrxCuO4 Studied by Neutron Scattering
C. H. Lee, K. Yamada, H. Hiraka +2
Spin excitations of La2-xSrxCuO have been studied using inelastic neutron scattering techniques in the energy range of 2 meV =< w =< 12 meV and the temperature range of 8 K =< T =<…
Infrared signatures of charge stripes in La(2-x)Sr(x)CuO(4)
A. Lucarelli, S. Lupi, M. Ortolani +9
The in-plane optical conductivity of seven La(2-x)Sr(x)CuO(4) single crystals with x between 0 and 0.15 has been studied from 30 to 295 K. All doped samples exhibit strong peaks in…