93 citations · 215 across the 12 of their papers we have counts for
12 papers
Correlation between and the Pseudogap Observed in the Optical Spectra of High Superconducting Cuprates
Setsuko Tajima, Yuhta Itoh, Katsuya Mizutamari +6
We studied the temperature dependences of the optical spectra for optimally and underdoped BiSrCaCuO single crystals. Similarly to the other cuprates' case…
Role of Vanadium-Oxide Layer in Electronic State of SrVFeAsO with Oxygen Deficiency
Masamichi Nakajima, Hiroaki Yokota, Taihei Wakimura +6
Iron-based superconductor SrVFeAsO is composed of alternate stacking of a superconducting FeAs layer and an insulating vanadium-oxide layer with a perovskite-type structure…
Electronic Structure of ( = 0.25, = 0.08) Revealed by Angle-Resolved Photoemission Spectroscopy
Toru Adachi, Shinichiro Ideta, Zi How Tin +4
We have investigated the electronic structure of ( = 0.25, = 0.08) by means o…
High- Iron-phosphide Superconductivity Enhanced by Reemergent Antiferromagnetic Spin Fluctuations in (SrScO)Fe(AsP) probed by NMR
F. Sakano, K. Nakamura, T. Kouchi +13
We report a systematic NMR study on [SrScO]Fe(AsP), for which the local lattice parameters of the iron-pnictogen (Fe) layer are similar to those…
Change of Fermi surface states related with two different -raising mechanisms in iron pnictide superconductor
A. Takemori, T. Hajiri, S. Miyasaka +6
Evolution of Fermi surface (FS) states of NdFeAsPOF single crystals with As/P substitution has been investigated. The critical temperature a…
Multiple Antiferromagnetic Spin Fluctuations and Novel Evolution of Tc in Iron-based superconductors LaFe(As1-xPx)(O1-yFy) revealed by 31P-NMR Studies
T. Shiota, H. Mukuda, M. Uekubo +8
We report on 31P-NMR studies of LaFe(As_{1-x}P_x)(O_{1-y}F_{y}) over wide compositions for 0<x<1 and 0<y<0.14, which provide clear evidence that antiferromagnetic spin fluctuations…
Optical Study of BaFeAs under pressure: Coexistence of spin-density-wave gap and superconductivity
E. Uykur, T. Kobayashi, W. Hirata +3
Temperature-dependent reflectivity measurements in the frequency range 85 - 7000 cm were performed on BaFeAs single crystals under pressure up to 5 GPa. The co…
Effect of magnetism on lattice dynamics in SrFeAs as seen via high resolution inelastic x-ray scattering
N. Murai, T. Fukuda, T. Kobayashi +9
Phonon spectra of detwinned {SrFeAs} crystals, as measured by inelastic x-ray scattering, show clear anisotropy accompanying the magneto-structural transition at 200 K. We…
NMR evidence for an intimate relationship between antiferromagnetic spin fluctuations and extended s-wave superconductivity in mono-crystalline SrFe2(As_{1-x}P_{x})2
M. Miyamoto, H. Mukuda, T. Kobayashi +4
We report systematic 31P-NMR study on iron (Fe)-based superconductors SrFe2(As_{1-x}P_{x})2 (Sr122AsP), in which a superconducting (SC) transition temperature Tc at x=0.35 increase…
Unconventional multiband superconductivity with nodes in single-crystalline SrFe2(As_0.65P_0.35)2 as seen via 31P-NMR and specific heat
T. Dulguun, H. Mukuda, T. Kobayashi +6
We report 31P-NMR and specific heat measurements on an iron (Fe)-based superconductor SrFe2(As0.65P0.35)2 with Tc=26 K, which have revealed the development of antiferromagnetic cor…
Doping dependence of Normal-state Property in the Iron-based Oxypnictide Superconductors LaFeAsO1-y probed by 57Fe-NMR and 75As-NMR/NQR
H. Mukuda, N. Terasaki, N. Tamura +11
We report systematic 57Fe-NMR and 75As-NMR/NQR studies on an underdoped sample (T_c=20 K), an optimally doped sample (T_c=28 K), and an overdoped sample (T_c=22 K) of oxygen-defici…
Universal observation of multiple order parameters in cuprate superconductors
R. Khasanov, S. Strässle, D. Di Castro +5
The temperature dependence of the London penetration depth λwas measured for an untwined single crystal of YBa_2Cu_3O_{7-δ} along the three principal crystallographic directions (a…