activity
20092020
most citedExcitonic Bose-Einstein condensation in Ta2NiSe5 above room temperature

182 citations · 552 across the 13 of their papers we have counts for

collaborators

13 papers

cond-mat.str-el2020★ 1 cited

Mapping the unoccupied state dispersions in TaNiSe with resonant inelastic x-ray scattering

C. Monney, M. Herzog, A. Pulkkinen +8

The transition metal chalcogenide TaNiSe undergoes a second-order phase transition at K involving a small lattice distortion. Below , a band gap at the cente…

cond-mat.supr-con2017★ 13 cited

Charge-Stripe Order and Superconductivity in

O. Ivashko, L. Yang, D. Destraz +14

A combined resistivity and hard x-ray diffraction study of superconductivity and charge ordering in , as a function of Pt substitution and externally app…

cond-mat.supr-con2016★ 13 cited

High-resolution magnetic penetration depth and inhomogeneities in locally noncentrosymmetric SrPtAs

J. F. Landaeta, S. V. Taylor, I. Bonalde +4

We present a magnetic-penetration-depth study on polycrystalline and granular samples of SrPtAs, a pnictide superconductor with a hexagonal structure containing PtAs layers that in…

cond-mat.supr-con2014★ 10 cited

Effect of Pt substitution on the electronic structure of AuTe2

D. Ootsuki, K. Takubo, K. Kudo +12

We report a photoemission and x-ray absorption study on Au1-xPtxTe2 (x = 0 and 0.35) triangular lattice in which superconductivity is induced by Pt substitution for Au. Au 4f and T…

cond-mat.supr-con2014★ 37 cited

Superconductivity in Noncentrosymmetric Iridium Silicide Li2IrSi3

S. Pyon, K. Kudo, J. Matsumura +9

The effects of lithium absorption on the crystal structure and electronic properties of IrSi3, a binary silicide with a noncentrosymmetric crystal structure, were studied. X-ray an…

cond-mat.supr-con2014★ 6 cited

Coexistence of Bloch electrons and glassy electrons in Ca10(Ir4As8)(Fe2_xIrxAs2)5 revealed by angle-resolved photoemission spectroscopy

K. Sawada, D. Ootsuki, K. Kudo +9

Angle-resolved photoemission spectroscopy of Ca10(Ir4As8)(Fe2_xIrxAs2)5 shows that the Fe 3d electrons in the FeAs layer form the hole-like Fermi pocket at the zone center and the…

cond-mat.str-el2014★ 25 cited

Bond-Order and the Role of Ligand States in Stripe-Modulated IrTe2

K. Takubo, R. Comin, D. Ootsuki +14

The coupled electronic-structural modulations of the ligand states in IrTe have been studied by x-ray absorption spectroscopy (XAS) and resonant elastic x-ray scattering (REXS)…

cond-mat.str-el2014★ 182 cited

Excitonic Bose-Einstein condensation in Ta2NiSe5 above room temperature

K. Seki, Y. Wakisaka, T. Kaneko +12

We show that finite temperature variational cluster approximation (VCA) calculations on an extended Falicov-Kimball model can reproduce angle-resolved photoemission spectroscopy (A…

cond-mat.supr-con2013★ 13 cited

Te 5p orbitals bring three-dimensional electronic structure to two-dimensional Ir0.95Pt0.05Te2

D. Ootsuki, T. Toriyama, M. Kobayashi +13

We have studied the nature of the three-dimensional multi-band electronic structure in the twodimensional triangular lattice Ir1-xPtxTe2 (x=0.05) superconductor using angle-resolve…

cond-mat.supr-con2013★ 22 cited

Important Roles of Te 5p and Ir 5d Spin-orbit Interactions on the Multi-band Electronic Structure of Triangular Lattice Superconductor Ir1-xPtxTe2

D. Ootsuki, T. Toriyama, M. Kobayashi +15

We report an angle-resolved photoemission spectroscopy (ARPES) study on a triangular lattice superconductor IrPtTe in which the Ir-Ir or Te-Te bond formation, the…

cond-mat.supr-con2012★ 71 cited

Electronic structure reconstruction by orbital symmetry breaking in IrTe2

D. Ootsuki, S. Pyon, K. Kudo +10

We report an angle-resolved photoemission spectroscopy (ARPES) study on IrTe2 which exhibits an interesting lattice distortion below 270 K and becomes triangular lattice supercondu…

cond-mat.supr-con2012★ 78 cited

Orbital Degeneracy and Peierls Instability in Triangular Lattice Superconductor IrPtTe

D. Ootsuki, Y. Wakisaka, S. Pyon +8

We have studied electronic structure of triangular lattice IrPtTe superconductor using photoemission spectroscopy and model calculations. Ir core-level photoem…

cond-mat.str-el2009★ 81 cited

Anomalous metallic state in the vicinity of Metal to Valence Bond Solid insulator transition in LiVS2

N. Katayama, M. Uchida, D. Hashizume +9

We investigate LiVS2 and LiVSe2 with a triangular lattice as itinerant analogues of LiVO2, known for the formation of valence bond solid (VBS) state out of S = 1 frustrated magnet.…