Zobrazeno 1 - 10
of 442
pro vyhledávání: '"Gallop J"'
Autor:
Amad, A. A. S., Deppisch, F. F., Fleck, M., Gallop, J., Goffrey, T., Hao, L., Higginbotham, N., Hogan, S. D., Jones, S. B., Li, L., McConkey, N., Monachello, V., Nichol, R., Potter, J. A., Ramachers, Y., Saakyan, R., Sedzielewski, E., Swinnock, D., Waters, D., Withington, S., Zhao, S., Zou, J.
Next generation tritium decay experiments to determine the absolute neutrino mass require high-precision measurements of $\beta$-decay electron energies close to the kinematic end point. To achieve this, the development of high phase-space density so
Externí odkaz:
http://arxiv.org/abs/2412.06338
We report a non-contact method for conductivity and sheet resistance measurements of graphene samples using a high Q microwave dielectric resonator perturbation technique, with the aim of fast and accurate measurement of microwave conductivity and sh
Externí odkaz:
http://arxiv.org/abs/1304.1304
Autor:
Webster, C. H., Kazakova, O., Gallop, J. C., Josephs-Franks, P. W., Hernandez-Minguez, A., Tzalenchuk, A. Ya.
Publikováno v:
Phys. Rev. B 76, 012403 (2007)
The effect of thermal coupling on spin avalanches in Mn12-acetate has been probed using a single crystal assembly. Time-resolved, synchronized measurements of magnetization and temperature are reported. Unusually low avalanche trigger fields occur wh
Externí odkaz:
http://arxiv.org/abs/cond-mat/0609586
We describe a method for direct measurement of the magnetic penetration length in thin (10 - 100 nm) superconducting structures having overall dimensions in the range 1 to 100 micrometers. The method is applicable for broadband magnetic fields from d
Externí odkaz:
http://arxiv.org/abs/cond-mat/0606278
We make systematic measurements of Raman anti-Stokes/Stokes (aS/S) ratios using two different laser excitations (514 and 633 nm) of rhodamine 6G (RH6G) on dried Ag colloids over a wide range of temperatures (100 to 350 K). We show that a temperature
Externí odkaz:
http://arxiv.org/abs/physics/0511074
Autor:
Gardiner, C. H., Lee, R. A. M., Gallop, J. C., Tzalenchuk, A. Ya., Macfarlane, J. C., Hao, L.
Publikováno v:
Superconductor Science and Technology, volume 17, issue 5, pages S234 - S240, year 2004
We report measurements of the flux hysteresis curves and trapped flux distribution in an YBa2Cu3O7 r.f. SQUID containing two closely spaced grain boundary Josephson junctions in parallel. Broadening of the flux distribution from T = 15 K to 30 K is f
Externí odkaz:
http://arxiv.org/abs/cond-mat/0403539
Autor:
Lamura, G., Purnell, A. J., Cohen, L. F., Andreone, A., Chiarella, F., Di Gennaro, E., Vaglio, R., Hao, L., Gallop, J.
The two tone intermodulation arising in MgB2 thin films deposited in-situ by planar magnetron sputtering on sapphire substrates is studied. Samples are characterised using an open-ended dielectric puck resonator operating at 8.8 GHz. The experimental
Externí odkaz:
http://arxiv.org/abs/cond-mat/0305158
Autor:
Zhukov, A. A., Purnell, A., Miyoshi, Y., Bugoslavsky, Y., Lockman, Z., Berenov, A., MacManus-Driscoll, J. L., Cohen, L. F., Zhai, H. Y., Christen, H. M., Paranthaman, M. P., Lowndes, D. H., Jo, M. H., Blamire, M. G., Hao, Ling, Gallop, J. C.
The microwave power, dc magnetic field, frequency and temperature dependence of the surface resistance of MgB2 films and powder samples were studied. Sample quality is relatively easy to identify by a number of characteristics, the most clear being t
Externí odkaz:
http://arxiv.org/abs/cond-mat/0109397
Autor:
Zhukov, A. A., Cohen, L. F., Purnell, A., Bugoslavsky, Y., Berenov, A., MacManus-Driscoll, J. L., Zhai, H. Y, Christen, Hans M., Paranthaman, Mariappan P., Lowndes, Douglas H., Jo, M. A., Blamire, M. C., Hao, Ling, Gallop, J.
In this paper we present the results of measurements of the microwave surface impedance of a powder sample and two films of MgB$_2$. One film has $T_c=30$ K and is not textured, the other is partially c-axis orientated with $T_c=38$ K. These samples
Externí odkaz:
http://arxiv.org/abs/cond-mat/0107240