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51.
C. B uerle Y. M. Bunkov A. S. Chen D. J. Cousins H. Godfrin M. Roger S. Triqueneaux 《Physica B: Condensed Matter》2000,280(1-4):95-99
Solid 3He films adsorbed on graphite display remarkable magnetic properties due to quantum exchange, reduced dimensionality and frustration. We discuss the relevance of the multiple spin exchange Hamiltonian to describe these systems. Our high precision NMR data and the results of heat capacity measurements performed in other laboratories allow us to unambiguously determine the most significant multi-spin exchange frequencies. This result gives a quantitative understanding of the thermodynamical properties of solid 3He films, explaining the evolution from a pure Heisenberg behavior at high areal densities to a novel spin liquid state at low coverages. 相似文献
52.
The 1,4-addition of thio nucleophiles to chiro-inositols containing a cinnamyl Michael acceptor proceeded with excellent diastereochemical induction and good yields. Cleavage of the inositol auxiliary provides beta-thio hydrocinnamic acids in >99% ee's. 相似文献
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54.
The CESR linewidths of evaporated films of silver, deposited on quartz substrates, have been measured at 9.27 GHz. An increase in low temperature linewidth with decrease in thickness over the range 1.1 μm to 0.5 μm is observed. Below 13 K, ?, the probability of an electron losing its spin memory on colliding with the surface, is found to be about 4.10-4. 相似文献
55.
The power penalty and bit error rate degradation encountered when using wavelength division multiplexing devices is analyzed. Analysis is applied to the birefringent wavelength division multiplexer (BWDM) with a sinusoidal transfer function.1 The degradation in bit error rate is attributed to laser mode partition noise and crosstalk noise. 相似文献
56.
S. Cousins 《Fiber and Integrated Optics》1990,9(1):1-10
An approach for analyzing the performance of wavelength-multiplexed fiber-optic communication systems is presented. Effects of mode partitioning and crosstalk on system bit error rate are evaluated. The effective optical passband, a figure of merit describing tolerance of the wavelength-multiplexed system to component variance, is introduced. The effective optical passband is shown to depend on the number and type of wavelength multiplexers in series as well as on the spectral position and width of the laser. Bit error rate measurements are presented to support the analysis. 相似文献
57.
Mathiazhagan C Molzon WR Cousins RD Konigsberg J Kubic J Melese P Rubin P Slater WE Wagner D Hart GW Kinnison WW Lee DM McKee RJ Milner EC Sanders GH Ziock HJ Arisaka K Knibbe P Urheim J Axelrod S Biery KA Irwin GM Lang K Margulies J Ouimette DA Ritchie JL Trang QH Wojcicki SG Auerbach LB Buchholz P Highland VL McFarlane WK Sivertz M Chapman MD Eckhause M Ginkel JF Hancock AD Joyce D Kane JR Kenney CJ Vulcan WF Welsh RE Whyley RJ Winter RG 《Physical review letters》1989,63(20):2185-2188
58.
Heinson AP Horvath J Knibbe P Mathiazhagan C Molzon WR Urheim J Arisaka K Cousins RD Kaarsberg T Konigsberg J Melese P Rubin P Slater WE Wagner D Hart GW Kinnison WW Lee DM McKee RJ Milner EC Sanders GH Ziock HJ Axelrod S Biery KA Diwan M Irwin GM Lang K Margulies J Ouimette DA Schwartz AJ Wojcicki SG Auerbach LB Belz J Buchholz P Guss C Highland VL Kettell SH McFarlane WK Sivertz M Hoffmann GW Riley PJ Ritchie JL Yamashita A Chapman MD Eckhause M Ginkel JF Hancock AD Kane JR Kenney CJ Kuang Y 《Physical review D: Particles and fields》1995,51(3):985-1013
59.
60.
Heinson AP Horvath J Mathiazhagan C Molzon WR Arisaka K Cousins RD Kaarsberg T Konigsberg J Rubin P Slater WE Wagner DL Kinnison WW Lee DM McKee RJ Milner EC Sanders GH Ziock HJ Knibbe P Urheim J Biery KA Diwan MV Irwin GM Lang K Margulies J Ouimette DA Schwartz A Wojcicki SG Auerbach LB Belz J Buchholz P Highland VL McFarlane WK Sivertz M Ritchie JL Yamashita A Chapman MD Eckhause M Ginkel JF Hancock AD Kane JR Kenney CJ Kuang Y Vulcan WF Welsh RE Whyley RJ Winter RG 《Physical review D: Particles and fields》1991,44(1):R1-R5