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相关论文: Proton irradiation effects on metal-YBCO interface…

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The thermally activated proton diffusion in BaZr0.9Y0.1O3-{\delta} was studied with electrochemical impedance spectroscopy (IS) and quasi-elastic neutron scattering (QENS) in the temperature range from 300 K to 900 K. The diffusivities for…

The interfacial electronic properties of complex oxides are governed by a delicate balance between charge transfer, lattice distortions, and electronic correlations, posing a key challenge for controlled tunability in materials research.…

材料科学 · 物理学 2025-11-05 Haidong Liang , Ganesh Ji Omar , Kun Han , Andrew A. Bettiol , Zhen Huang , A. Ariando

The damping of the oscillations of a small permanent magnet (spherical shape, radius 0.1 mm) levitating between two parallel YBCO surfaces is measured as a function of oscillation amplitude and temperature. The losses in the samples…

超导电性 · 物理学 2007-05-23 R. Grosser , P. Hoecherl , A. Martin , M. Niemetz , W. Schoepe

One-atom-thick crystals are impermeable to atoms and molecules, but hydrogen ions (thermal protons) penetrate through them. We show that monolayers of graphene and boron nitride can be used to separate hydrogen ion isotopes. Employing…

In this paper, we report on the study of the optical properties of YAG:Ce and GGG:Ce garnet crystals after irradiation in a 660~MeV proton beam with a fluence up to 8.9$\times$10$^{14}$ protons/cm$^2$. We found that the transparency of both…

仪器与探测器 · 物理学 2020-11-25 V. Baranov , Yu. I. Davydov , M. Mkrtchian , I. I. Vasilyev

We study conductance fluctuations in a two-dimensional electron gas as a function of chemical potential (or gate voltage) from the strongly insulating to the metallic regime. Power spectra of the fluctuations decay with two distinct…

介观与纳米尺度物理 · 物理学 2016-08-31 Dragana Popović , S. Washburn

In this work, we employed non-equilibrium Green's function to investigate the electron transport properties in the nanowire with the presence of scatterings. The scattering mechanism is modelled by using the concept of B\"uttiker probe. The…

介观与纳米尺度物理 · 物理学 2015-06-04 Jing Li , Tin Cheung Au Yeung , Chan Hin Kam

We report the effect of the \emph{ab}-plane magnetic field $B$ up to $8\,\mathrm{T}$ on the resistivity $\rho(T)$ and fluctuation conductivity $\sigma'(T)$ in YBa$_2$Cu$_3$O$_{7-\delta}$ thin films. As expected, up to $\sim 2.5\,\mathrm{T}$…

We studied the tunneling density of states in YBCO films under strong currents flowing along node directions. The currents were induced by fields of up to 32.4T parallel to the film surface and perpendicular to the $CuO_{2}$ planes. We…

超导电性 · 物理学 2007-05-23 R. Beck , Y. Dagan , A. Milner , G. Leibovitch , A. Gerber , R. G. Mints , G. Deutscher

In superconductors where the coherence length is comparable to the Fermi wavelength, the electronic levels within a vortex core are quantized, and separated by energies of the order of the superconducting gap. The absence of a continuum…

凝聚态物理 · 物理学 2007-05-23 F. Guinea , Yu. Pogorelov

A graphical representation based on the isothermal current-voltage (IV) measurements of typical memristive interfaces is presented. This is the starting point to extract relevant microscopic information of the parameters that control the…

材料科学 · 物理学 2017-04-26 C. Acha

High-pressure electrical resistivity, r(T), measurements on intermetallic Pr(Co, Ni, Pt)2B2C compounds were performed down to 2K. At room pressure the r(T) in a-b direction curves for the non superconducting Pr(Co, Ni)2B2C compounds exhibit…

超导电性 · 物理学 2015-05-20 R Falconi , A Durán , M Núñez-Regueiro , R Escudero

This paper presents the results of the proton irradiation of silicon photomulipliers (SiPMs) by mono-energetic 170 MeV protons with fluence up to 4.6$\times$10$^{9}$ particles/cm$^2$. In our work, three types of silicon photodetectors from…

A comprehensive study of drain current dispersion effects in $\beta$-Ga$_2$O$_3$ FETs has been done using DC, pulsed and RF measurements. Both virtual gate effect in the gate-drain access region and interface traps under the gate are most…

材料科学 · 物理学 2021-08-11 Abhishek Vaidya , Uttam Singisetti

The superconductor YB6 has the second highest critical temperature Tc among the boride family MBn. We report measurements of the specific heat, resistivity, magnetic susceptibility and thermal expansion from 2 to 300 K, using a single…

超导电性 · 物理学 2009-11-11 R. Lortz , Y. Wang , U. Tutsch , S. Abe , C. Meingast , P. Popovich , W. Knafo , N. Shitsevalova , Yu. B. Paderno , A. Junod

Resonant optical excitation of apical oxygen vibrational modes in the normal state of underdoped YBa2Cu3O6+x induces a transient state with optical properties similar to those of the equilibrium superconducting state. Amongst these, a…

Silicon photomultipliers (SiPMs) have become popular light conversion devices in recent years due to their low bias voltage and sensitivity to wavelengths emitted from common scintillating materials. These properties make them particularly…

仪器与探测器 · 物理学 2020-05-20 K. D. Bartlett , D. D. S. Coupland , D. Beckman , K. E. Mesick

The effect of atomic disorder induced by neutrons irradiation on superconducting and normal state properties of polycrystalline LaFeAsO_0.9F_0.1 was investigated. The irradiation of the sample by a moderate neutron fluence F = 1.6*1019…

超导电性 · 物理学 2013-05-29 A. E. Karkin , J. Werner , G. Behr , B. N. Goshchitskii

The structural properties under hydrostatic pressure up to 3 GPa of the layered rare earth carbide halide superconductor Y2C2I2 are studied by neutron powder diffraction at room temperature. The compressibilities are anisotropic, such that…

Compton scattering by the proton has been measured over a wide range covering photon energies 250 MeV < E_\gamma < 800 MeV and photon scattering angles 30^0 < \theta^{lab}_\gamma < 150^0, using the tagged-photon facility at MAMI (Mainz) and…