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Research

Dr David Bradley

Honorary Researcher

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  1. Published

    Quasiparticle dynamics in a tantalum superconducting tunnel junction photon detector studied using phonon pulses.

    Wigmore, J. K., Boyd, P., Kozorezov, A. G. & Bradley, D. I., 2004, In: Physica Status Solidi C. 1, 11, p. 2791-2794 4 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  2. Published

    Phonon excitation of quasiparticles in niobium and tantalum superconducting tunnel junction photon detectors.

    Wigmore, J. K., Boyd, P., Steele, A. C., Kozorezov, A. G. & Bradley, D. I., 11/03/2004, In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 520, 1-3, p. 263-266 4 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  3. Published

    Characterisation of Ta STJ photon detectors using phonon pulses at mK temperatures.

    Wigmore, J. K., Boyd, P., Kozorezov, A. G. & Bradley, D. I., 2004, Proceedings of the 6th European conference on applied superconductivity: EUCAS. Bristol: Institute of Physics, p. 3007-3013 7 p.

    Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSN › Chapter

  4. Published

    Frequency-dependent drag from quantum turbulence produced by quartz tuning forks in superfluid He4

    Tsepelin, V., Ahlstrom, S., Bradley, I., Clovecko, M., Fisher, S., Guénault, T., Guise, E. A., Haley, R., Kolosov, O., McClintock, P. V. E., Pickett, G., Poole, M. & Woods, A., 30/01/2014, In: Physical review B. 89, 1, 10 p., 014515.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  5. Published

    Heat pulse studies of quasiparticle dynamics in superconducting tunnel junction photon detectors.

    Steele, A. C., Boyd, P., Kozorezov, A. G., Wigmore, J. K. & Bradley, D. I., 05/2002, In: Physica B: Condensed Matter. 316-31, 1, p. 583-585 3 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  6. Published

    Nanoelectronic primary thermometry below 4 millikelvin

    Sarsby, M., Haley, R., Bradley, D. I., George, R., Pashkin, Y., Prance, J., Gunnarsson, D., Heikkinen, H., Prunnila, M., Jari, P. & Roschier, L., 2016, In: APS March Meeting 2016.

    Research output: Contribution to Journal/Magazine › Meeting abstract

  7. Published

    Nanoelectronic thermometers optimised for sub-10 millikelvin operation

    Prance, J. R., Bradley, D. I., George, R. E., Haley, R. P., Pashkin, Y. A., Sarsby, M., Penttilä, J., Roschier, L., Gunnarsson, D., Heikkinen, H. & Prunnila, M., 10/06/2015, In: arxiv.org.

    Research output: Contribution to Journal/Magazine › Journal article

  8. Published

    Producing and imaging quantum turbulence via pair-breaking in superfluid 3 He − B

    Noble, T., Ahlstrom, S., Bradley, I., Guise, E. A., Haley, R., Kafanov, S., Pickett, G., Poole, M., Schanen, R., Wilcox, T., Woods, A., Zmeev, D. & Tsepelin, V., 25/05/2022, In: Physical Review B: Condensed Matter and Materials Physics. 105, 17, 11 p., 174515.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  9. Published

    Nuclear demagnetisation cooling of a nanoelectronic device

    Jones, A., Bradley, I., Guénault, T., Gunnarsson, D., Haley, R., Holt, S., Pashkin, Y., Penttilä, J., Prance, J., Prunnila, M. & Roschier, L., 2017, In: APS March Meeting 2017.

    Research output: Contribution to Journal/Magazine › Meeting abstract

  10. Published

    Observation of quantum turbulence in superfluid 3He-B using reflection and transmission of ballistic thermal excitations

    Jackson, M., Bradley, D. I., Guénault, A. M., Haley, R. P., Pickett, G. R. & Tsepelin, V., 24/03/2017, In: Physical review B. 6 p., 094518.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  11. Published

    Generation, evolution, and decay of pure quantum turbulence: a full Biot-Savart simulation

    Fujiyama, S., Mitani, A., Tsubota, M., Bradley, D. I., Fisher, S. N., Guénault, A. M., Haley, R. P., Pickett, G. R. & Tsepelin, V., 1/05/2010, In: Physical review B. 81, 18, p. - 4 p., 180512.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  12. Published

    Probing Bogoliubov Quasiparticles in Superfluid $$^3$$ 3 He with a ‘Vibrating-Wire Like’ MEMS Device

    Defoort, M., Dufresnes, S., Ahlstrom, S. L., Bradley, D. I., Haley, R. P., Guénault, A. M., Guise, E. A., Pickett, G. R., Poole, M., Woods, A. J., Tsepelin, V., Fisher, S. N., Godfrin, H. & Collin, E., 05/2016, In: Journal of Low Temperature Physics. 183, 3, p. 284-291 8 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  13. Published

    Refrigeration and thermometry for millikelvin and sub-millikelvin nanoelectronics.

    Chawner, J., Bradley, I., Guénault, A., Gunnarsson, D., Haley, R., Jones, A., Pashkin, Y., Penttilä, J., Prance, J., Prunnila, M. & Roschier, L., 2019, In: APS March Meeting 2019.

    Research output: Contribution to Journal/Magazine › Meeting abstract

  14. Published

    Direct observation of the Andreev reflection of a quasiparticle beam by quantum turbulence in superfluid He-3-B.

    Bradley, D. I., Fisher, S. N., Guénault, A. M., Lowe, M. R., Pickett, G. R. & Rahm, A., 05/2003, In: Physica B: Condensed Matter. 329, 1, p. 64-65 2 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  15. Published

    Fluctuations and correlations of pure quantum turbulence in superfluid He-3_B.

    Bradley, D. I., Fisher, S. N., Guénault, A. M., Haley, R. P., O'Sullivan, S., Pickett, G. R. & Tsepelin, V., 8/08/2008, In: Physical review letters. 101, 6, p. 065302

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  16. Published

    The Annihilation of Two Phase Interfaces in Superfluid He-3: Simulated Brane Annihilation in the Laboratory.

    Bradley, D. I., Fisher, S. N., Guénault, A. M., Haley, R. P., Kopu, J., Martin, H., Pickett, G. R., Roberts, J. E. & Tsepelin, V., 11/2008, In: Journal of the Physical Society of Japan. 77, 11, p. 111005

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  17. Published

    Annihilation of an AB/BA interface pair in superfluid helium-3 as a simulation of cosmological brane interaction.

    Bradley, D. I., Fisher, S. N., Guénault, A. M., Haley, R. P., Kopu, J., Martin, H., Pickett, G. R., Roberts, J. E. & Tsepelin, V., 28/08/2008, In: Philosophical Transactions A: Mathematical, Physical and Engineering Sciences . 366, 1877, p. 2803-2812 10 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  18. Published

    Grid turbulence in superfluid He-3-B at low temperatures.

    Bradley, D. I., Fisher, S. N., Guénault, A. M., Haley, R. P., Holmes, M., O'Sullivan, S., Pickett, G. R. & Tsepelin, V., 02/2008, In: Journal of Low Temperature Physics. 150, 3-4, p. 364-372 9 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  19. Published

    Magnetic distortion of the B-like phase of superfluid He-3 confined in aerogel.

    Bradley, D. I., Fisher, S. N., Guénault, A. M., Haley, R. P., Pickett, G. R., Roberts, J. E., O'Sullivan, S. & Tsepelin, V., 02/2008, In: Journal of Low Temperature Physics. 150, 3-4, p. 445-452 8 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  20. Published

    Relic topological defects from brane annihilation simulated in superfluid He-3.

    Bradley, D. I., Fisher, S. N., Guénault, A. M., Haley, R. P., Kopu, J., Martin, H., Pickett, G. R., Roberts, J. E. & Tsepelin, V., 01/2008, In: Nature Physics. 4, 1, p. 46-49 4 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  21. Published

    The AB interface in superfluid He-3 as a simulated cosmological brane.

    Bradley, I., Fisher, S. N., Guénault, A. M., Haley, R. P., Kopu, J., Martin, H., Pickett, G. R., Roberts, J. E. & Tsepelin, V., 09/2007, In: Journal of Low Temperature Physics. 148, 5-6, p. 465-473 9 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  22. Published

    Non-linear mechanical response of the a-like phase of superfluid He-3 in aerogel.

    Bradley, D. I., Fisher, S. N., Guénault, A. M., Haley, R. P., Pickett, G. R., Roberts, J. E., O'Sullivan, S. & Tsepelin, V., 09/2007, In: Journal of Low Temperature Physics. 148, 5-6, p. 603-607 5 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  23. Published

    Vortex rings in superfluid He-3-B at low temperatures.

    Bradley, D. I., Fisher, S. N., Guénault, A. M., Haley, R. P., Matthews, C. J., Pickett, G. R., Roberts, J. E., O'Sullivan, S. & Tsepelin, V., 08/2007, In: Journal of Low Temperature Physics. 148, 3-4, p. 235-243 9 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  24. Published

    Contrasting mechanical anisotropies of the superfluid He-3 phases in aerogel.

    Bradley, D. I., Fisher, S. N., Guénault, A. M., Haley, R. P., Mulders, N., O'Sullivan, S., Pickett, G. R., Roberts, J. E. & Tsepelin, V., 02/2007, In: Physical review letters. 98, 7, p. 075302

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

  25. Published

    The generation of quantum turbulence in He-3-B by a vibrating grid at low temperatures.

    Bradley, D. I., Fisher, S. N., Guénault, A. M., Haley, R. P., Matthews, C. J., Pickett, G. R., Tsepelin, V. & Zaki, K., 7/09/2006, In: AIP Conference Proceedings. 850, p. 173-174 2 p.

    Research output: Contribution to Journal/Magazine › Journal article › peer-review

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