447 citations · 3k across the 70 of their papers we have counts for
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Fermi-surface-sheet dependent electron-phonon coupling in a borocarbide superconductor YNiBC
Taichi Terashima, Hiroyuki Takeya, Hisatomo Harima
We performed de Haas-van Alphen (dHvA) oscillation measurements and band-structure calculations for YNiBC. Our improved band structure successfully explained the origins of…
In-plane and interlayer magnetoresistance in FeSe
Taichi Terashima, Shinya Uji, Hiroaki Ikeda +3
We report measurements of the in-plane and interlayer magnetoresistances of FeSe. The in-plane magnetoresistance for is positive below and…
Apparent nonreciprocal transport in FeSe bulk crystals
Taichi Terashima, Shinya Uji, Yuji Matsuda +2
We performed low-frequency ac first- and second-harmonic resistance measurements and dc measurements on bulk FeSe crystals in a temperature range between 1.8 and 150 K and in…
Transport evidence for twin-boundary pinning of superconducting vortices in FeSe
Taichi Terashima, Hideaki Fujii, Yoshitaka Matsushita +4
We provide bulk transport evidence for twin-boundary pinning of vortices in FeSe. We measure interlayer resistance in FeSe in magnetic fields and find that, as the field is rotated…
In-plane electronic anisotropy revealed by interlayer resistivity measurements on the iron-based superconductor parent compound CaFeAsF
Taichi Terashima, Hishiro T. Hirose, Yoshitaka Matsushita +5
Both cuprates and iron-based superconductors demonstrate nematicity, defined as the spontaneous breaking of rotational symmetry in electron systems. The nematic state can play a ro…
Antiperovskite superconductor LaPdP with noncentrosymmetric cubic structure
Akira Iyo, Izumi Hase, Hiroshi Fujihisa +8
Antiperovskites are a promising candidate structure for the exploration of new materials. We discovered an antiperovskite phosphide, LaPdP, following our recent synthesis of…
Anomalous High-Field Magnetotransport in CaFeAsF due to the Quantum Hall Effect
Taichi Terashima, Hishiro T. Hirose, Naoki Kikugawa +5
CaFeAsF is an iron-based superconductor parent compound whose Fermi surface is quasi-two dimensional, composed of Dirac-electron and Schrödinger-hole cylinders elongated along the…
Extraordinary -Electron Superconductivity Emerging from a Quantum Spin Liquid
Shusaku Imajo, Shiori Sugiura, Hiroki Akutsu +6
Quantum spin liquids (QSLs), in which spins are highly entangled, have been considered a groundwork for generating exotic superconductivity.Despite numerous efforts, superconductiv…
Superconductivity of centrosymmetric and non-centrosymmetric phases in antiperovskite (Ca,Sr)PdP
Akira Iyo, Izumi Hase, Hiroshi Fujihisa +9
In the recently discovered antiperovskite phosphide (Ca,Sr)PdP, centrosymmetric (CS) and non-centrosymmetric (NCS) superconducting phases appear depending on the Sr concentrati…
Structural phase transitions and superconductivity induced in antiperovskite phosphide CaPdP
Akira Iyo, Hiroshi Fujihisa, Yoshito Gotoh +7
In this study, we succeeded in synthesizing new antiperovskite phosphides PdP ( = Ca, Sr, Ba) and discovered the appearance of a superconducting phase (0.17 $\…
Elastoresistance measurements on CaKFeAs and KCaFeAsF with the Fe site of symmetry
Taichi Terashima, Yoshitaka Matsushita, Hiroyuki Yamase +11
We report resistance and elastoresistance measurements on (BaK)FeAs, CaKFeAs, and KCaFeAsF. The Fe-site symmetry is in the…
Large and significantly anisotropic critical current density induced by planar defects in CaKFe4As4 single crystals
Sunseng Pyon, Ayumu Takahashi, Ivan Veshchunov +8
Three independent components of critical current density, one for the H//c axis and the other two for the H//ab plane, have been studied in CaKFe4As4 single crystals. When the magn…
Accurate determination of the Fermi surface of tetragonal FeS via quantum oscillation measurements and quasiparticle self-consistent \textit{GW} calculations
Taichi Terashima, Naoki Kikugawa, David Graf +9
We perform de Haas-van Alphen measurements and quasiparticle self-consistent \textit{GW} (QS\textit{GW}) calculations on FeS. The calculated Fermi surface (FS) consists of two hole…
Anomalous peak effect in iron-based superconductors BaKFeAs ( 0.69 and 0.76) for magnetic-field directions close to the plane and its possible relation to the spin paramagnetic effect
Taichi Terashima, Naoki Kikugawa, Andhika Kiswandhi +7
We report magnetic torque measurements on iron-pnictide superconductors BaKFeAs ( 0.69 and 0.76) up to an applied field of = 45 T. The peak eff…
Searching for gap zeros in Sr2RuO4 via field-angle-dependent specific-heat measurement
Shunichiro Kittaka, Shota Nakamura, Toshiro Sakakibara +9
The gap structure of SrRuO, which is a longstanding candidate for a chiral p-wave superconductor, has been investigated from the perspective of the dependence of its specif…
Fermi surface with Dirac fermions in CaFeAsF determined via quantum oscillation measurements
Taichi Terashima, Hishiro T. Hirose, David Graf +6
Despite the fact that 1111-type iron arsenides hold the record transition temperature of iron-based superconductors, their electronic structures have not been studied much because…
Upper critical field and quantum oscillations in tetragonal superconducting FeS
Taichi Terashima, Naoki Kikugawa, Hai Lin +6
The magnetoresistance and magnetic torque of FeS are measured in magnetic fields of up to 18 T down to a temperature of 0.03 K. The superconducting transition temperature is fo…
Magnetotransport study of the pressure-induced antiferromagnetic phase in FeSe
Taichi Terashima, Naoki Kikugawa, Shigeru Kasahara +4
The resistivity and Hall resistivity are measured on FeSe at pressures up to = 28.3 kbar in magnetic fields up to = 14.5 T. The and curves are ana…
Fermi surface reconstruction in FeSe under high pressure
Taichi Terashima, Naoki Kikugawa, Andhika Kiswandhi +13
We report Shubnikov-de Haas (SdH) oscillation measurements on FeSe under high pressure up to = 16.1 kbar. We find a sudden change in SdH oscillations at the onset of the pressu…
Pressure-induced antiferromagnetic transition and phase diagram in FeSe
Taichi Terashima, Naoki Kikugawa, Shigeru Kasahara +9
We report measurements of resistance and ac magnetic susceptibility on FeSe single crystals under high pressure up to 27.2 kbar. The structural phase transition is quickly suppress…
Field-induced superconducting phase of FeSe in the BCS-BEC cross-over
S. Kasahara, T. Watashige, T. Hanaguri +13
Fermi systems in the crossover regime between weakly coupled Bardeen-Cooper-Schrieffer (BCS) and strongly coupled Bose-Einstein-condensate (BEC) limits are among the most fascinati…
Superconductivity in 122-type antimonide BaPtSb
Motoharu Imai, Soshi Ibuka, Naoki Kikugawa +5
The crystal structure, superconducting properties, and electronic structure of a novel superconducting 122-type antimonide, BaPtSb, have been investigated by measurements o…
Anomalous Fermi surface in FeSe seen by Shubnikov-de Haas oscillation measurements
Taichi Terashima, Naoki Kikugawa, Andhika Kiswandhi +15
We have observed Shubnikov-de Haas oscillations in FeSe. The Fermi surface deviates significantly from predictions of band-structure calculations and most likely consists of one el…
On infrared pseudogap in cuprate and pnictide high-temperature superconductors
S. J. Moon, Y. S. Lee, A. A. Schafgans +15
We investigate infrared manifestations of the pseudogap in the prototypical cuprate and pnictide superconductors: YBa2Cu3Oy and BaFe2As2 (Ba122) systems. We find remarkable similar…