Zobrazeno 1 - 10
of 133
pro vyhledávání: '"N R, Taylor"'
Autor:
N. R. Taylor, Mark C. Phillips
Publikováno v:
Optics letters. 39(3)
A two-beam differential laser absorption technique is used to measure U238 absorption spectra with high signal-to-noise ratios in an atmospheric pressure laser-induced plasma. High-resolution absorption spectra are presented for the U238 861 nm trans
Autor:
Mark C. Phillips, N. R. Taylor
Publikováno v:
CLEO: 2013.
Absorption spectra of neutral uranium atoms generated in a laser-induced plasma are measured with tunable diode lasers to determine line widths and pressure broadening coefficients. Various background gases are examined at pressures from 10–760 Tor
Autor:
N. R. TAYLOR, ET AL. ET AL.
Publikováno v:
ChemInform. 29
Publikováno v:
Superconductor Science and Technology. 5:258-261
Ultrasonic velocity and internal friction measurements on a single crystal of Bi2Sr2Ca1Cu2Ox grown by directional solidification have shown a number of anomalous features and instabilities which correlate well with annealing treatments designed to ch
Publikováno v:
Journal of Physics: Condensed Matter. 4:L51-L54
Experimental results are presented for the ultrasonic velocity and attenuation of shear waves at 2.4 MHz in proustite. The effects of the polarization and wavelength of irradiation in the range 450-900 nm on the photoinduced phase transition at 210 K
Autor:
K. N. R. Taylor, S. R. Yang
Publikováno v:
Phase Transitions. 36:233-256
The previous work on the topic of phase transitions in proustite is briefly reviewed. Study on the fundamental absorption edge related optical properties of proustite is reported, which reveals anomalies in the average absorption coefficient, band ga
Publikováno v:
Journal of Physics: Condensed Matter. 3:4753-4756
The ultrasonic attenuation in proustite has been measured in the vicinity of 210 K. the results provide further evidence for a photoinduced phase transition at this temperature. A possible mechanism for the increase in attenuation induced by illumina
Autor:
S. R. Yang, K. N. R. Taylor
Publikováno v:
Journal of Applied Physics. 69:420-428
The temperature dependent ac conductivity of single‐crystal proustite measured at several frequencies over the temperature range from 82 to 467 K reveals six distinct regions associated with different conduction mechanisms. A phase transition from
Publikováno v:
Phase Transitions. 22:103-119
The parameters controlling the intergranular percolating network of the new class of high temperature superconductors have been studied using a novel method to control specimen composition as the percolation limit is approached. The form of the resis