نتایج جستجو برای: 2 d resistivity
تعداد نتایج: 2903355 فیلتر نتایج به سال:
We show that nanostructure and resistivity of Pr0.5Ca0.5Mn0.98Cr0.02O3 are sensitive to whether the sample is zero-field-cooled (ZFC) or field-cooled (FC) either in the ‘self-magnetic field (H ≈ 2 T)’ of the electron microscope or under the external magnetic field of 2 T. FC resistivity at H = 2 T is lower than ZFC values below 140 K. The average value of the charge-orbital modulation vector (q...
The tubular ascidian heart is composed of a single layer of cells joined together by apical (zonulae occludentes) and spot (maculae occludentes) nexuses. Intercalated discs or desmosomes were not observed in this tissue. Rectangular pulses of current were applied across the opened and flattened myocardium. Assuming that all the transepithelial current flowed through a uniform gap between cells,...
Relatively few investigations have employed electrical methods in the submarine environment, which may be promising for mineral deposits or threatened by environmental problems. We have measured the electric field using both disk and bar electrodes in the sea water at three different levels: sea surface, seven meters deep, and sea bottom at a depth of ten meters, employing a 2 m spacing dipole-...
The resistivity of ultraclean suspended graphene is strongly temperature (T) dependent for 50.5 x 10(11) cm(-2), the resistivity increases with increasing T and is linear above 50 K, suggesting carrier scattering from acoustic p...
Abstract. A method for calculating the values of specific resistivity ρ as well as the product μHB of the Hall mobility and magnetic induction on a conductive sample of an arbitrary geometric configuration with two arbitrary fitted current electrodes of nonzero length and has been proposed an grounded. During the experiment, under the constant value U of voltage and in the absence of the magnet...
Dynamic critical properties of the vortex–glass transition derived from angular-dependent properties of La 2−x Sr x CuO 4 films Abstract We present resistivity data on a high-quality La 2−x Sr x CuO 4−δ film measured in a magnetic field of 1 T applied at an angle δ to the c axis. Using these data, the influence of the orientation of the magnetic field and the effective mass anisotropy on the vo...
GHOSH, D. I’., 1971, The Application of Linear Filter Theory to the Direct Interpretation of Geoelectrical Resistivity Sounding Measurements, Geophysical Prospecting 19,192.217. Koefoed has given practical procedures of obtaining the layer parameters directly from the apparent resistivity sounding measurements by using the raised kernel function H(A) as the intermediate step. However, it is fel...
Some multi-electrode resistivity studies were performed within and outside the landfill as part of the environmental project. The apparent-resistivity data were collected using a dipole-dipole survey with 21 electrodes (spaced a=5m with n= 1, ...,18), to give a total line-length of 100 meters. Data inversion was carried out using the DCINV2D program. All the subsequent inversions had a RMS less...
CMOS implementations for RF applications often employ technology modifications to reduce the silicon substrate loss at high frequencies. The most common techniques include the use of a high-resistivity substrate (ρ>10Ω-cm) or silicon-on-insulator (SOI) substrate and precise bondwire inductors [1, 2]. However, these techniques are incompatible with low-cost CMOS manufacture. This design demonstr...
Measurements of surface resistivity as a function of coverage for oxygen adsorbed on sulfur-predosed Cu(100) films reveal two types of interactions between sulfur and oxygen: S-O repulsion and short-range suppression of the surface resistivity change induced by oxygen adsorption. The repulsive interaction causes oxygen atoms to first occupy adsorption sites far from the sulfur atoms, beyond sec...
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