279 citations · 586 across the 15 of their papers we have counts for
15 papers
Single Crystal Growth and Transport Properties of van der Waals Materials Te ( = Ti, Zr, Hf)
Yuto Hasuo, Takahiro Urata, Masaaki Araidai +3
Monolayers of Te (/ = Ti, Zr, Hf) were theoretically predicted to be two-dimensional topological insulators, but little has been known about the physical properties o…
Separate tuning of nematicity and spin fluctuations to unravel the origin of superconductivity in FeSe
Seung-Ho Baek, Jong Mok Ok, Jun Sung Kim +8
The interplay of orbital and spin degrees of freedom is the fundamental characteristic in numerous condensed matter phenomena, including high temperature superconductivity, quantum…
Novel method to study strain effect of thin films using a piezoelectric-based device and a flexible metallic substrate
Kazumasa Iida, Yuwa Sugimoto, Takafumi Hatano +5
For applying tensile or compressive uniaxial strain to functional thin films, we propose a novel approach in combining a piezoelectric-based device and a technical metallic substra…
Electronic States and Energy Dissipations of Vortex Core in Pure FeSe Single Crystals Investigated by Microwave Surface Impedance Measurements
Tatsunori Okada, Yoshinori Imai, Takahiro Urata +3
In order to clarify electronic states and energy dissipations due to a motion of a vortex core in pure FeSe, which is a candidate superconductor possessing a super-clean core, we m…
Effects of strain on the electronic structure, superconductivity, and nematicity in FeSe studied by angle-resolved photoemission spectroscopy
G. N. Phan, K. Nakayama, K. Sugawara +8
One of central issues in iron-based superconductors is the role of structural change to the superconducting transition temperature (T_c). It was found in FeSe that the lattice stra…
Non-Fermi liquid behavior of electrical resistivity close to the nematic critical point in FeCoSe and FeSeS
Takahiro Urata, Yoichi Tanabe, Khuong Kim Huynh +3
Temperature dependence of resistivity of single crystals of FeCoSe and FeSeS is studied in detail under zero and high magnetic field (magnetoresistance), th…
Enhanced superconducting transition temperature in hyper-interlayer-expanded FeSe despite the suppressed electronic nematic order and spin fluctuations
M. Majcen Hrovat, P. Jeglic, M. Klanjsek +8
The superconducting critical temperature, , of FeSe can be dramatically enhanced by intercalation of a molecular spacer layer. Here we report on a Se, Li and…
Argument on superconductivity pairing mechanism from cobalt impurity doping in FeSe: spin () or orbital () fluctuation
T. Urata, Y. Tanabe, K. K. Huynh +3
In high-superconducting transition temperature () iron-based superconductors, interband sign reversal () and sign preserving () -wave superco…
Emergence of the minority hole with high mobility on the electrical transport in the Fe-pnictides Ba(FeMnAs)
T. Urata, Y. Tanabe, K. K. Huynh +4
In Fe pnictide (Pn) superconducting materials, neither Mn- nor Cr- doping to the Fe site induces superconductivity, even though hole carriers are generated. This is in strong contr…
Electric Transport of a Single Crystal Iron Chalcogenide FeSe Superconductor: Evidence of Symmetry Breakdown Nematicity and Additional Ultrafast Dirac cone-Like Carriers
K. K. Huynh, Y. Tanabe, T. Urata +4
An SDW antiferromagnetic (SDW-AF) low temperature phase transition is generally observe and the AF spin fluctuations are considered to play an important role for the superconductiv…
Reconstruction of Band Structure Induced by Electronic Nematicity in an FeSe Superconductor
K. Nakayama, Y. Miyata, G. N. Phan +5
We have performed high-resolution angle-resolved photoemission spectroscopy on FeSe superconductor (Tc ~ 8 K), which exhibits a tetragonal-to-orthorhombic structural transition at…
Mobility spectrum analytical approach for intrinsic band picture of Ba(FeAs)
Khuong Kim Huynh, Yoichi Tanabe, Takahiko Urata +4
Unconventional high temperature superconductivity as well as three-dimensional bulk Dirac cone quantum states arising from the unique d-orbital topology has been a recent priority…
Kondo-like mass enhancement of Dirac fermion in iron pnictides Ba(FeMnAs)
T. Urata, Y. Tanabe, K. K. Huynh +4
The effect of Mn substitution, acting as a magnetic impurity for Fe, on the Dirac cone was investigated in Ba(FeMnAs). Both magnetoresistance and Hall resistivity s…
Suppression of backward scattering of Dirac fermions in iron pnictides Ba(FeRuAs)
Y. Tanabe, K. K. Huynh, T. Urata +5
We report electronic transport of Dirac cones when Fe is replaced by Ru, which has an isoelectronic electron configuration to Fe, using single crystals of Ba(FeRuAs)$_2…
Coexistence of Dirac-Cone States and Superconductivity in Iron Pnictide Ba(FeRuAs)
Y. Tanabe, K. K. Huynh, S. Heguri +6
The Ru doping effect on the Dirac cone states is investigated in iron pnictide superconductors Ba(FeRuAs) using the transverse magnetoresistance (MR) measurements a…