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Article
Plasma processed tungsten for fusion reactor first-wall material
Tungsten is one of the prime candidates for a first-wall material near the divertor area due to its high temperature strength, high thermal conductivity, low erosion rate and low tritium retention. The erosion...
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Article
Open AccessPhotoinduced multistage phase transitions in Ta2NiSe5
Ultrafast control of material physical properties represents a rapidly develo** field in condensed matter physics. Yet, accessing the long-lived photoinduced electronic states is still in its early stages, e...
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Article
Open AccessTunable near- to mid-infrared pump terahertz probe spectroscopy in reflection geometry
Strong-field mid-infrared pump–terahertz (THz) probe spectroscopy has been proven as a powerful tool for light control of different orders in strongly correlated materials. We report the construction of an ult...
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Article
Optical spectroscopy study of charge density wave order in Sr3Rh4Sn13 and (Sr0.5Ca0.5)3Rh4Sn13
We perform optical spectroscopy measurement on single-crystal samples of Sr3Rh4Sn13 and (Sr0.5Ca0.5)3Rh4Sn13. Formation of CDW energy gap was clearly observed for both single-crystal samples when they undergo the...
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Article
Robust magnetic order of Ce 4f-electrons coexisting with superconductivity in CeFeAsO1−x F x
The electrical resistance of CeFeAsO1−x F x (x = 0.06 and 0.08) has been measured in magnetic fields up to 40 T. At zero field, the sample with x = 0.06 ...
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Article
Anomalous Behavior of Low Temperature Specific Heat in HgCr2Se4
Low temperature specific heat (C p ) characterization on high-quality HgCr2Se4 single crystal was performed between 0.5 K and 10 K. The result provides conceivab...
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Article
Open AccessStructural phase transition in IrTe2: A combined study of optical spectroscopy and band structure calculations
Ir1−xPtxTe2 is an interesting system showing competing phenomenon between structural instability and superconductivity. Due to the large atomic numbers of Ir and Te, the spin-orbital coupling is expected to be st...
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Article
Open AccessEnergy gaps in Bi2Sr2CaCu2O8+δ cuprate superconductors
The relationship between the cuprate pseudogap (Δp) and superconducting gap (Δs) remains an unsolved mystery. Here, we present a temperature- and do**-dependent tunneling study of submicron Bi2Sr2CaCu2O8+δ intr...
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Article
Open AccessNanoscale phase separation of antiferromagnetic order and superconductivity in K0.75Fe1.75Se2
We report an in-plane optical spectroscopy study on the iron-selenide superconductor K0.75Fe1.75Se2. The measurement revealed the development of a sharp reflectance edge below Tc at frequency much smaller than th...
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Article
Fermi surface dichotomy of the superconducting gap and pseudogap in underdoped pnictides
High-temperature superconductivity in iron-arsenic materials (pnictides) near an antiferromagnetic phase raises the possibility of spin-fluctuation-mediated pairing. However, the interplay between antiferromag...
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Article
Observation of a ubiquitous three-dimensional superconducting gap function in optimally doped Ba0.6K0.4Fe2As2
Photoemission measurements sensitive to the momentum perpendicular to the layers that make up the pnictide superconductors are able to map out a full three-dimensional superconducting gap structure.
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Article
Intergrain Effects in the AC Susceptibility of Polycrystalline LaFeAsO0.94F0.06
The AC susceptibility, χ, at zero DC magnetic field of a polycrystalline sample of LaFeAsO0.94F0.06 (T c ≈24 K) has been investigated as a function of th...
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Article
Multiple Superconducting Gaps and Anisotropic Spin Fluctuations in Hole-Doped and Electron-Doped Iron-Pnictides: NMR Studies
We present extensive 75As-NMR data on the electron-doped pnictides PrFeAsO0.89F0.11 (T c=45 K), LaFeAsO0.92F0.08 (T c=23 K), and the hole-doped Ba0.72K0.28Fe2As2 (T
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Article
Granularity and Linear Flux Dynamics in Sintered LaO0.92F0.08FeAs
The flux dynamics in LaO0.92F0.08FeAs polycrystalline samples has been investigated looking at the first and higher harmonics of the AC magnetic susceptibility. The investigation of the real and imaginary part of...
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Article
Vitreous surgery with direct central retinal artery massage for central retinal artery occlusion
To evaluate the effectiveness of vitreous surgery with direct central retinal artery massage for the treatment of central retinal artery occlusion (CRAO).
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Article
Nearly isotropic superconductivity in (Ba,K)Fe2As2
Superconductivity has been observed in iron-arsenic (or iron pnictide) compounds with critical transition temperatures as high as 56 K, inviting comparison with the high-Tc copper oxides. The copper oxides have q...
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Article
The effects of glaucoma filtering surgery on anterior chamber-associated immune deviation and contribution of lymphatic drainage in rats
To investigate whether glaucoma filtering surgery (GFS) in rats would impair the eye's capacity to induce anterior chamber-associated immune deviation (ACAID) and assess the possible mechanism involved.
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Article
Structural and magnetic phase diagram of CeFeAsO1− xFx and its relation to high-temperature superconductivity
Recently, high-transition-temperature (high-Tc) superconductivity was discovered in the iron pnictide RFeAsO1−xFx (R, rare-earth metal) family of materials. We use neutron scattering to study the structural and m...
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Article
Magnetic order close to superconductivity in the iron-based layered LaO1-xF x FeAs systems
Much like high-Tc copper oxides, superconductivity in the newly discovered the rare-earth iron-based oxide systems is derived from either electron or hole do** of their non-superconducting parent compounds. The...
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Article
Penetration of topically applied levofloxacin into eyes with thin-wall filtering bleb after trabeculectomy
To investigate the comparative penetration of 0.3% levofloxacin eye drops into the aqueous humour between cataract patients with or without (control) thin-wall filtering blebs.
