Yoji Koike

activity

20072025

most citedThe Role of Lattice Coupling in Establishing Electronic and Magnetic Properties in Quasi-One-Dimensional Cuprates

96 citations · 385 across the 20 of their papers we have counts for

collaborators

20 papers

cond-mat.str-el2025★ 1 cited

Observation of spin-conserving two-spinon continuum in the $S$ =1/2 antiferromagnetic chain system Sr $_{2}$ CuO $_{3}$ using Cu $K$ -edge resonant inelastic x-ray scattering

Kenji Ishii, Kenji Tsutsui, Takayuki Kawamata +1

We report a Cu $K$ -edge resonant inelastic x-ray scattering (RIXS) study of spin excitations in the $S$ =1/2 antiferromagnetic chain system Sr $_{2}$ CuO $_{3}$ . The spectral weight observ…

cond-mat.str-el2019★ 11 cited

Thermal Conductivity and Magnetic Phase Diagram of CuB2O4

T. Kawamata, N. Sugawara, S. M. Haidar +11

We have measured temperature and magnetic field dependences of the thermal conductivity along the c-axis, kc, and that along the [110] direction, k110, of CuB2O4 single crystals in…

cond-mat.supr-con2017★ 18 cited

New Lithium- and Diamines-Intercalated Superconductors Li $_{x}$ (C $_{2}$ H $_{8}$ N $_{2}$ ) $_{y}$ TiSe $_{2}$ and Li $_{x}$ (C $_{6}$ H $_{16}$ N $_{2}$ ) $_{y}$ TiSe $_{2}$

Kazuki Sato, Takashi Noji, Takehiro Hatakeda +3

New intercalation superconductors of Li $_{x}$ (C $_{2}$ H $_{8}$ N $_{2}$ ) $_{y}$ TiSe $_{2}$ and Li $_{x}$ (C $_{6}$ H $_{16}$ N $_{2}$ ) $_{y}$ TiSe $_{2}$ with $T_{c}$ = 4.2 K have successfully been synthesized via…

cond-mat.supr-con2017★ 9 cited

Pressure tuning of structure, superconductivity and novel magnetic order in the Ce-underdoped electron-doped cuprate T'-Pr_1.3-xLa_0.7Ce_xCuO_4 (x = 0.1)

Z. Guguchia, T. Adachi, Z. Shermadini +15

High-pressure neutron powder diffraction, muon-spin rotation and magnetization studies of the structural, magnetic and the superconducting properties of the Ce-underdoped supercond…

cond-mat.str-el2016★ 1 cited

Metal-Insulator Transition and Pseudogap in Bi $_{1.76}$ Pb $_{0.35}$ Sr $_{1.89}$ CuO $_{6 + δ}$ High- $T_{c}$ Cuprates

M. Miyazaki, R. Kadono, M. Hiraishi +6

It is inferred from bulk-sensitive muon Knight shift measurement for a Bi $_{1.76}$ Pb $_{0.35}$ Sr $_{1.89}$ CuO $_{6 + δ}$ single-layer cuprate that metal-insulator (MI) transition (in th…

cond-mat.supr-con2015★ 34 cited

Strong electron correlation behind the superconductivity in Ce-free and Ce-underdoped high-Tc T'-cuprates

T. Adachi, A. Takahashi, K. M. Suzuki +9

In order to investigate the electronic state of Ce-free and Ce-underdoped high-Tc cuprates with the so-called T' structure, we have performed muon-spin-relaxation (muSR) and specif…