Now showing items 21-30 of 370
Thermal stability of the high-N solid-solution layer on stainless steel
Low-energy, high-flux N ion implantation into austenitic stainless steel held at approximately 400 °C results in dramatic improvements in the tribological properties due to sufficiently large N layer thicknesses and ...
Effect of deposition conditions on YBa2Cu3O 7-δ thin films by inverted cylindrical magnetron sputtering and substrate effects
The dependence of YBCO thin film properties on the deposition conditions was studied for different substrates. The deposition conditions were optimized for the epitaxial growth of high quality YBCO thin films of 1500 Å ...
Features of electron and phonon processes in GaSb-FeGa1.3 eutectics
(IOP Publishing, 2003-11)
Eutectic alloys of GaSb-FeGa1.3 were prepared by the vertical Bridgman method. A microstructure with the needle-shaped metallic FeGa1.3 phase oriented in a specific direction and uniformly distributed within the GaSb matrix ...
N,N-dialkylaniline-substituted tetraethynylethenes: A new class of chromophores possessing an emitting charge-transfer state. Experimental and computational studies
(Wiley-VCH Verlag, 2001-07)
The photophysical properties of N,N-dimethylaniline- (DMA) substituted tetraethynylethene (TEE; 3,4-diethynylhex-3-ene-1,5-diyne) and related derivatives were investigated in a joint experimental and computational study. ...
Separation of trace antimony and arsenic prior to hydride generation atomic absorption spectrometric determination
A separation method utilizing a synthetic zeolite (mordenite) was developed in order to eliminate the gas phase interference of Sb(III) on As(III) during quartz furnace hydride generation atomic absorption spectrometric ...
Redetermination of the crystal structure of sodium trisamarium digermanate dihydroxide, NaSm3(GeO4)2(OH)2
(R. Oldenbourg, 2002)
Ge2H2NaO10Sm3, monoclinic, C12/c1 (No. 15), a = 18.323(3)Å, b = 5.2369(8) Å, c = 12.108(2) Å, β= 131.230(2)°, V = 873.8 Å3, Z = 4, R gt(F) = 0.037, wRref(F2) = 0.010, T= 153 K.
Quasiparticle and Josephson tunneling of overdoped Bi2Sr2CaCu2O8+δ single crystals
(American Physical Society, 2000-02)
The point contact tunneling technique is used to examine quasiparticle and Josephson currents in overdoped Bi2Sr2CaCu2O8+δ (Bi-2212) single crystals with bulk Tc values ranging from 82 K down to 62 K. Superconductor-insu ...
Fermion families and chirality through extra dimensions
We give a simple model to explain the origin of fermion families and chirality through the use of a domain wall-anti-domain wall pair placed in a five dimensional space-time. Higher dimensional spaces have been revived ...
Aspects of the tunneling dip feature in Bi2Sr2CaCu2O8+δ and its relation to the resonance spin excitation
Break-junction tunneling data are reported in Bi2Sr2CaCu2O8+δ over a wide range of hole concentration from underdoped to overdoped. The strong conductance peaks in the superconducting state reveal a single gap consistent ...
Conductance fluctuations in undoped intrinsic hydrogenated amorphous silicon films prepared using several deposition techniques
Coplanar conductance fluctuations in a range of device quality undoped hydrogenated amorphous silicon (a-Si:H) films prepared using different deposition systems were measured in the temperature range of 440-505 K for ...