Search Results - "Eisaki, Hiroshi"
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Revealing hidden spin-momentum locking in a high-temperature cuprate superconductor
Published in Science (American Association for the Advancement of Science) (14-12-2018)“…Cuprate superconductors have long been thought of as having strong electronic correlations but negligible spin-orbit coupling. Using spin- and angle-resolved…”
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2
New three-dimensional flat band candidate materials Pb2As2O7 and Pb2Sn2O7
Published in Scientific reports (03-11-2024)“…Energy dispersion of electrons is the most fundamental property of the solid state physics. In models of electrons on a lattice with strong geometric…”
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3
Incoherent strange metal sharply bounded by a critical doping in Bi2212
Published in Science (American Association for the Advancement of Science) (29-11-2019)“…In normal metals, macroscopic properties are understood using the concept of quasiparticles. In the cuprate high-temperature superconductors, the metallic…”
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4
Effect of Structural Parameters on Superconductivity in Fluorine-Free LnFeAsO1-y (Ln = La,Nd)
Published in Journal of the Physical Society of Japan (01-08-2008)“…The crystal structure of LnFeAsO1-y (Ln = La, Nd) has been studied by the powder neutron diffraction technique. The superconducting phase diagram of NdFeAsO1-y…”
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5
Superconductivity at 54 K in F-Free NdFeAsO1-y
Published in Journal of the Physical Society of Japan (01-06-2008)“…We have synthesized a series of oxygen-deficient, fluorine-free polycrystalline samples with nominal chemical formula NdFeAsO1-y using high-pressure technique…”
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6
Evidence for a vestigial nematic state in the cuprate pseudogap phase
Published in Proceedings of the National Academy of Sciences - PNAS (02-07-2019)“…The CuO₂ antiferromagnetic insulator is transformed by hole-doping into an exotic quantum fluid usually referred to as the pseudogap (PG) phase. Its defining…”
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7
Tracking Cooper Pairs in a Cuprate Superconductor by Ultrafast Angle-Resolved Photoemission
Published in Science (American Association for the Advancement of Science) (01-06-2012)“…In high-temperature superconductivity, the process that leads to the formation of Cooper pairs, the fundamental charge carriers in any superconductor, remains…”
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Novel electronic nematicity in heavily hole-doped iron pnictide superconductors
Published in Proceedings of the National Academy of Sciences - PNAS (24-03-2020)“…Electronic nematicity, a correlated state that spontaneously breaks rotational symmetry, is observed in several layered quantum materials. In contrast to their…”
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9
Direct phase-sensitive identification of a d-form factor density wave in underdoped cuprates
Published in Proceedings of the National Academy of Sciences - PNAS (29-07-2014)“…The identity of the fundamental broken symmetry (if any) in the underdoped cuprates is unresolved. However, evidence has been accumulating that this state may…”
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10
Visualization of spatial inhomogeneity in the superconducting gap using micro-ARPES
Published in Science and technology of advanced materials (31-12-2024)“…Electronic inhomogeneity arises ubiquitously as a consequence of adjacent and/or competing multiple phases or orders in strongly correlated electron systems…”
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11
Phase competition in trisected superconducting dome
Published in Proceedings of the National Academy of Sciences - PNAS (06-11-2012)“…A detailed phenomenology of low energy excitations is a crucial starting point for microscopic understanding of complex materials, such as the cuprate…”
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12
Superconductivity on Hole-Doping Side of (La0.5–x Na0.5+x )Fe2As2
Published in Journal of the American Chemical Society (10-01-2018)“…(La0.5–x Na0.5+x )Fe2As2 ((La,Na)122) is an interesting system in the sense that either electrons (x < 0) or holes (x > 0) can be doped into the Fe2As2…”
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13
Superconducting-Gap Anisotropy of Iron Pnictides Investigated via Combinatorial Microwave Measurements
Published in Scientific reports (27-04-2020)“…One of the most significant issues for superconductivity is clarifying the momentum-dependent superconducting gap Δ( k ), which is closely related to the…”
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14
Unique defect structure and advantageous vortex pinning properties in superconducting CaKFe4As4
Published in npj quantum materials (03-06-2019)“…The lossless current-carrying capacity of a superconductor is limited by its critical current density ( J c ). A key to enhance J c towards real-life…”
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15
Coherence Length of Electronic Nematicity in Iron-Based Superconductors
Published in Journal of the Physical Society of Japan (15-10-2024)“…Recent developments in laser-excited photoemission electron microscopy (laser-PEEM) advance the visualization of electronic nematicity and nematic domain…”
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16
Structural Phase Transitions and Superconductivity Induced in Antiperovskite Phosphide CaPd3P
Published in Inorganic chemistry (08-09-2020)“…In this study, we succeeded in synthesizing new antiperovskite phosphides MPd3P (M = Ca, Sr, Ba) and discovered the appearance of a superconducting phase (0.17…”
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Superconductivity of centrosymmetric and non-centrosymmetric phases in antiperovskite (Ca,Sr)Pd3P
Published in Journal of alloys and compounds (15-11-2021)“…In the recently discovered antiperovskite phosphide (Ca,Sr)Pd3P, centrosymmetric (CS) and non-centrosymmetric (NCS) superconducting phases appear depending on…”
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High-pressure synthesis and superconductivity of the novel laves phase BaIr2
Published in Intermetallics (01-09-2022)Get full text
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19
Ultrafast quenching of electron–boson interaction and superconducting gap in a cuprate superconductor
Published in Nature communications (15-09-2014)“…Ultrafast spectroscopy is an emerging technique with great promise in the study of quantum materials, as it makes it possible to track similarities and…”
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Fe-Based Superconductors of (Ln 0.5–x Na0.5+x )Fe2As2 (Ln = Ce, Pr)
Published in Inorganic chemistry (06-08-2018)“…Recently, we succeeded in synthesizing (La0.5–x Na0.5+x )Fe2As2 ((La,Na)122) with a solid solution range of 0 ≤ x ≤ 0.35. Superconductivity was induced for…”
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