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Dr David Bradley

Honorary Researcher

  1. 2022
  2. 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/MagazineJournal articlepeer-review

  3. 2019
  4. 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/MagazineMeeting abstract

  5. 2017
  6. Published

    Operating nanobeams in a quantum fluid

    Bradley, D. I., George, R. E., Guénault, A. M., Haley, R. P., Kafanov, S., Noble, T., Pashkin, Y., Pickett, G. R., Poole, M., Prance, J. R., Sarsby, M., Schanen, R., Tsepelin, V., Wilcox, T. & Zmeev, D., 7/07/2017, In: Scientific Reports. 7, 4876, 8 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  7. Published

    On-chip magnetic cooling of a nanoelectronic device

    Bradley, D. I., Guénault, A. M., Gunnarsson, D., Haley, R. P., Holt, S., Jones, A. T., Pashkin, Y., Penttilä, J., Prance, J. R., Prunnila, M. & Roschier, L., 4/04/2017, In: Scientific Reports. 7, 9 p., 45566.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  8. 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/MagazineJournal articlepeer-review

  9. Published

    Andreev Reflection in Superfluid He-3: A Probe for Quantum Turbulence

    Bradley, I., Guénault, T., Haley, R. P., Pickett, G. R. & Tsepelin, V., 1/03/2017, In: Annual Review of Condensed Matter Physics. 8, p. 407-430 24 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  10. 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/MagazineMeeting abstract

  11. 2016
  12. Published

    Breaking the superfluid speed limit in a fermionic condensate

    Bradley, D. I., Fisher, S. N., Guénault, A. M., Haley, R. P., Lawson, C., Pickett, G. R., Schanen, R., Skyba, M., Tsepelin, V. & Zmeev, D., 11/2016, In: Nature Physics. 12, 11, p. 1017-1021 5 p.

    Research output: Contribution to Journal/MagazineLetterpeer-review

  13. Published

    Probing liquid 4He with quartz tuning forks using a novel multifrequency lock-in technique

    Bradley, D. I., Haley, R. P., Kafanov, S., Noble, T., Pickett, G. R., Tsepelin, V., Vonka, J. & Wilcox, T., 09/2016, In: Journal of Low Temperature Physics. 184, 5, p. 1080-1091 12 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  14. Published

    Erratum: Nanoelectronic primary thermometry below 4 mK (Nature Communications (2016) 7 (10455) DOI: 10.1038/ncomms10455)

    Bradley, D. I., George, R. E., Gunnarsson, D., Haley, R. P., Heikkinen, H., Pashkin, Y. A., Penttilä, J., Prance, J. R., Prunnila, M., Roschier, L. & Sarsby, M., 3/06/2016, In: Nature Communications. 7, 1 p., 11678.

    Research output: Contribution to Journal/MagazineComment/debatepeer-review

  15. 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/MagazineJournal articlepeer-review

  16. Published

    Nanoelectronic primary thermometry below 4 mK

    Bradley, D. I., George, R. E., Gunnarsson, D., Haley, R. P., Heikkinen, H., Pashkin, Y., Penttilä, J., Prance, J. R., Prunnila, M., Roschier, L. & Sarsby, M., 27/01/2016, In: Nature Communications. 7, 6 p., 10455.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  17. 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/MagazineMeeting abstract

  18. 2015
  19. 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/MagazineJournal article

  20. 2014
  21. Published

    Stability of flow and the transition to turbulence around a quartz tuning fork in superfluid He-4 at very low temperatures

    Bradley, D. I., Fear, M. J., Fisher, S., Guenault, A. M., Haley, R. P., Lawson, C. R., Pickett, G. R., Schanen, R., Tsepelin, V. & Wheatland, L. A., 9/06/2014, In: Physical review B. 89, 21, 9 p., 214503.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  22. Published

    A quasiparticle detector for imaging quantum turbulence in superfluid 3He-B

    Ahlstrom, S., Bradley, I., Fisher, S., Guénault, T., Guise, E. A., Haley, R., Holt, S., Kolosov, O., McClintock, P. V. E., Pickett, G., Poole, M., Schanen, R., Tsepelin, V. & Woods, A., 06/2014, In: Journal of Low Temperature Physics. 175, 5-6, p. 725-738 14 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  23. Published

    Anomalous damping of a low frequency vibrating wire in superfluid He-3-B due to vortex shielding

    Bradley, D. I., Fear, M. J., Fisher, S., Guenault, A. M., Haley, R. P., Lawson, C. R., Pickett, G. R., Schanen, R. & Tsepelin, V., 04/2014, In: Journal of Low Temperature Physics. 175, 1-2, p. 372-378 7 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  24. Published

    Hysteresis, switching and anomalous behaviour of a quartz tuning fork in superfluid 4He

    Bradley, I., Fear, M., Fisher, S., Guénault, T., Haley, R., Lawson, C., Pickett, G., Schanen, R., Tsepelin, V. & Wheatland, L., 04/2014, In: Journal of Low Temperature Physics. 175, 1-2, p. 379-384 6 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  25. Published

    Plastic properties of solid 4He probed by a moving wire: viscoelastic and stochastic behavior under high stress

    Ahlstrom, S., Bradley, I., Clovecko, M., Fisher, S., Guénault, T., Guise, E. A., Haley, R., Kumar, M., McClintock, P. V. E., Pickett, G., Polturak, E., Poole, M., Todoshchenko, I. A., Tsepelin, V. & Woods, A., 04/2014, In: Journal of Low Temperature Physics. 175, 1-2, p. 147-153 7 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  26. Published

    Response of a mechanical oscillator in solid 4He

    Ahlstrom, S., Bradley, I., Clovecko, M., Guénault, T., Guise, E. A., Haley, R., Kolosov, O., Kumar, M., McClintock, P. V. E., Pickett, G., Polturak, E., Poole, M., Todoshchenko, I. A., Tsepelin, V. & Woods, A., 04/2014, In: Journal of Low Temperature Physics. 175, 1-2, p. 140-146 7 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  27. 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/MagazineJournal articlepeer-review

  28. 2013
  29. Published

    The Onset of Vortex Production by a Vibrating Wire in Superfluid He-3-B

    Bradley, D. I., Fisher, S. N., Ganshin, A., Guénault, A. M., Haley, R. P., Jackson, M. J., Pickett, G. R. & Tsepelin, V., 06/2013, In: Journal of Low Temperature Physics. 171, 5-6, p. 582-588 7 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  30. Published

    Thermometry in Normal Liquid He-3 Using a Quartz Tuning Fork Viscometer

    Bradley, D. I., Clovecko, M., Fisher, S. N., Garg, D., Guénault, A. M., Guise, E., Haley, R. P., Pickett, G. R., Poole, M. & Tsepelin, V., 06/2013, In: Journal of Low Temperature Physics. 171, 5-6, p. 750-756 7 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  31. 2012
  32. Published

    Turbulent drag on a low-frequency vibrating grid in superfluid He-4 at very low temperatures

    Bradley, D. I., Fisher, S. N., Guénault, A. M., Haley, R. P., Kumar, M., Lawson, C. R., Schanen, R., McClintock, P. V. E., Munday, L., Pickett, G. R., Poole, M., Tsepelin, V. & Williams, P., 28/06/2012, In: Physical review B. 85, 22, p. - 10 p., 224533.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  33. Published

    Crossover from hydrodynamic to acoustic drag on quartz tuning forks in normal and superfluid 4He

    Bradley, D. I., Clovecko, M., Fisher, S., Deepak, D., Guise, E., Haley, R., Kolosov, O., Pickett, G., Tsepelin, V., Schmoranzer, D. & Skrbek, L., 6/01/2012, In: Physical review B. 85, 1, p. - 9 p., 014501.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  34. 2011
  35. Published

    A New Device for Studying Low or Zero Frequency Mechanical Motion at Very Low Temperatures

    Bradley, I., Clovecko, M., Fear, M., Fisher, S., Guénault, A. M., Haley, R., Lawson, C., Pickett, G., Schanen, R., Tsepelin, V. & Williams, P., 11/2011, In: Journal of Low Temperature Physics. 165, 3-4, p. 114-131 17 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  36. Published

    Direct measurement of the energy dissipated by quantum turbulence

    Bradley, I., Fisher, S., Guénault, A. M., Haley, R., Pickett, G., Potts, D. & Tsepelin, V., 06/2011, In: Nature Physics. 7, 6, p. 473-476

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  37. Published

    History Dependence of Turbulence Generated by a Vibrating Wire in Superfluid (4)He at 1.5 K

    Bradley, I., Guénault, A. M., Fisher, S., Haley, R., Jackson, M., Nye, D., O'Shea, K., Pickett, G. & Tsepelin, V., 02/2011, In: Journal of Low Temperature Physics. 162, 3-4, p. 375-382

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  38. 2010
  39. Published

    Measuring the Prong Velocity of Quartz Tuning Forks Used to Probe Quantum Fluids

    Bradley, I., Crookston, P., Fear, M., Fisher, S., Foulds, G., Garg, D., Guénault, A. M., Guise, E. A., Haley, R., Kolosov, O., Pickett, G., Schanen, R. & Tsepelin, V., 12/2010, In: Journal of Low Temperature Physics. 161, 5-6, p. 536-547

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  40. Published

    Magnetic phase transition in a nanonetwork of solid (3)He in aerogel

    Bradley, I., Fisher, S., Guénault, A. M., Haley, R., Mulders, N., Pickett, G., Potts, D., Skyba, P., Smith, J., Tsepelin, V. & Whitehead, R. C. V., 09/2010, In: Physical review letters. 105, 12, 125303.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  41. 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/MagazineJournal articlepeer-review

  42. 2009
  43. Published

    The damping of a quartz tuning fork in superfluid He-3-B at low temperatures

    Bradley, D. I., Crookston, P., Fisher, S. N., Ganshin, A., Guénault, A. M., Haley, R. P., Jackson, M. J., Pickett, G. R., Schanen, R. & Tsepelin, V., 12/2009, In: Journal of Low Temperature Physics. 157, 5-6, p. 476-501 26 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  44. Published

    Transition to turbulence for a quartz tuning fork in superfluid He-4

    Bradley, D. I., Fear, M. J., Fisher, S. N., Guénault, A. M., Haley, R. P., Lawson, C. R., McClintock, P. V. E., Pickett, G. R., Schanen, R., Tsepelin, V. & Wheatland, L. A., 09/2009, In: Journal of Low Temperature Physics. 156, 3-6, p. 116-131 16 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  45. Published

    The Transition to Turbulent Drag for a Cylinder Oscillating in Superfluid He-4 : A Comparison of Quantum and Classical Behavior.

    Bradley, D. I., Fisher, S. N., Guénault, A. M., Haley, R. P., Tsepelin, V., Pickett, G. R. & Zaki, K. L., 02/2009, In: Journal of Low Temperature Physics. 154, 3-4, p. 97-116 20 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  46. 2008
  47. 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/MagazineJournal articlepeer-review

  48. Published

    Probing Andreev reflection in superfluid He-3-B using a quartz tuning fork.

    Bradley, I., Clovecko, M., Gazo, E. & Skyba, P., 09/2008, In: Journal of Low Temperature Physics. 152, 5-6, p. 147-155 9 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  49. 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/MagazineJournal articlepeer-review

  50. 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/MagazineJournal articlepeer-review

  51. 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/MagazineJournal articlepeer-review

  52. 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/MagazineJournal articlepeer-review

  53. 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/MagazineJournal articlepeer-review

  54. 2007
  55. 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/MagazineJournal articlepeer-review

  56. 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/MagazineJournal articlepeer-review

  57. 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/MagazineJournal articlepeer-review

  58. 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/MagazineJournal articlepeer-review

  59. 2006
  60. Published

    Decay of quantum turbulence generated by a vibrating grid at low temperatures in superfluid He-3-B.

    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. 175-176 2 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  61. 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/MagazineJournal articlepeer-review

  62. Published

    The thermal boundary resistance of the superfluid He-3 A-B phase interface in the low temperature limit.

    Bradley, D. I., Fisher, S. N., Guénault, A. M., Haley, R. P., Martin, H., Pickett, G. R., Roberts, J. E. & Tsepelin, V., 7/09/2006, In: AIP Conference Proceedings. 850, p. 87-88 2 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  63. Published

    Thermal transport by ballistic quasiparticles in superfluid He-3-B in the low temperature limit.

    Bradley, D. I., Fisher, S. N., Guénault, A. M., Haley, R. P., Martin, H., Pickett, G. R., Roberts, J. E. & Tsepelin, V., 7/09/2006, In: AIP Conference Proceedings. 850, p. 93-94 2 p.

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

  64. Published

    Decay of pure quantum turbulence in superfluid He-3-B.

    Bradley, D. I., Clubb, D. O., Fisher, S. N., Guénault, A. M., Haley, R. P., Matthews, C. J., Pickett, G. R., Tsepelin, V. & Zaki, K., 23/01/2006, In: Physical review letters. 96, 3, p. 035301

    Research output: Contribution to Journal/MagazineJournal articlepeer-review

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