Kim Lefmann

Kim Lefmann

Professor

Member of:


    1. 2011
    2. Published

      Optimal shape of a cold-neutron triple-axis spectrometer

      Lefmann, Kim, Filges, U., Treue, F., Kirkensgaard, Jacob Judas Kain, Plesner, B., Hansen, K. S. & Klenø, K. H., 1 Apr 2011, In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 634, 1 (Suppl. 1), p. S1-S6 6 p.

      Research output: Contribution to journalConference articleResearchpeer-review

    3. Published

      Using McStas for modelling complex optics, using simple building bricks

      Willendrup, P. K., Udby, L., Knudsen, E., Farhi, E. & Lefmann, Kim, 1 Apr 2011, In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 634, Sp.1, p. S150-S155

      Research output: Contribution to journalConference articleResearchpeer-review

    4. Published

      Status of the danish Neutron Scattering Society

      Lefmann, Kim, 1 Mar 2011

      Research output: Other contributionCommunication

    5. Published

      ESS, en forskningsfacilitet i verdensklasse under opbygning i Lund

      Lefmann, Kim, Arleth, Lise, Christensen, N. B., Møller, S. P., Skelboe, Stig & Willendrup, P. K., 1 Feb 2011, In: Kvant. 22, 1, p. 25-32

      Research output: Contribution to journalJournal articleCommunication

    6. 2010
    7. Published

      Simulation of a suite of generic long-pulse neutron instruments to optimize the time structure of the European Spallation Source accelerator: Report to ESS-SAC

      Lefmann, Kim, Filges, U., fvh927, fvh927, Klenø, K. H., Lieutenant, K., Knudsen, E., von Moos, L., Sales, M. & Willendrup, P. K., 1 Oct 2010

      Research output: Other contributionResearch

    8. Published

      Field-induced tomonaga-luttinger liquid phase two-leg spin 1/2 ladder with strong leg interactions

      Hong...[et al.], T., Kim, Y. H., Hotta, C. & Lefmann, Kim, 23 Sep 2010, In: Physical Review Letters. 105, 13, p. 137207 4 p.

      Research output: Contribution to journalJournal articleResearchpeer-review

    9. 2009
    10. Published

      Long-Pulse Neutron Instrumentation Workshop, August 26-28, 2009

      Crawford, R. K., Arai, M., Carlile, C., Chapon, L., Granroth, G., Langridge, S., Lefmann, Kim, Mezei, F., Monkenbusch, M., Muhrer, G. & Wiedenmann, A., 26 Aug 2009, Oak Ridge, USA

      Research output: Other contributionResearch

    11. Published

      Magnetic ordering in electronically phase-separated La2-x Srx CuO4+y: Neutron diffraction experiments

      Udby, L., Chou, F. C., Christensen, N. B., Emery, S. B., Lefmann, Kim, Lynn, J. W., Mohottala, H. E., Niedermayer, C. & Wells, B. O., 6 Aug 2009, In: Physical Review B - Condensed Matter and Materials Physics. 80, 1, 014505.

      Research output: Contribution to journalJournal articleResearchpeer-review

    12. Published

      Anomalous spin waves in the commensurate-incommensurate magnetic phase transition in  LiNiPO4

      Jensen, T. B. S., Christensen, N. B. & Lefmann, Kim, 2009, In: Physical Review B Condensed Matter. 79, 9, p. 092413

      Research output: Contribution to journalJournal articleResearchpeer-review

    13. Published

      Design and simulation of instruments for a long-pulsed spallation source - ESS

      Lefmann, K., Willendrup, P. K., Knudsen, E., Larsen, F. K., Lieutenant, K., Habitch, K., Strobl, M., Kleno, K. H., Voigt, J., Frielinghaus, H., Manoshin, S., Stahn, J., Kohlbrecher, J., Filges, U., Farhi, E., Bentley, P., Cubitt, B., Wiedenmann, A., Regnault, L-P., Menelle, A. & 12 others, Goukassov, A., Rodriguez-Carvajal, J., Cuello, G., Tucker, M. G., Webster, J. R. P., Percival, A., Granroth, G., Robertson, L., Nylander, T., Mortensen, Kell, Vettier, C. & Mezei, F., 2009. 1 p.

      Research output: Contribution to conferenceConference abstract for conferenceResearch

    14. Published

      Field-induced competing interactions for ferroelectric polarization in  LiNiPO4

      Jensen, T. B. S., Christensen, N. B., Kenzelmnn, M., Rønnow, H. M., Niedermayer, C., Andersen, N. H., Lefmann, Kim, Schefer, J., Zimmermann, M. V., Li, J., Zarestsky, J. L. & Vaknin, D., 2009, In: Physical Review B Condensed Matter. 79, 9, p. 092412

      Research output: Contribution to journalJournal articleResearchpeer-review

    15. Published

      Magnetic ordering in electronically phase-separated La(2-x)Sr(x)CuO(4+y): Neutron diffraction experiments

      Udby, L., Andersen, N. H., Chou, F. C., Christensen, N. B., Emery, S. B., Lefmann, Kim, Lynn, J. W., Mohottala, H. E., Niedermayer, C. & Wells, B. O., 2009, In: Physical Review B Condensed Matter. 80, p. 014505 5 p.

      Research output: Contribution to journalJournal articleResearchpeer-review

    16. Published

      Magnetic-field-induced soft-mode quantum phase transition in the high-temperature superconductor La1.855 Sr0.145 CuO4: An inelastic neutron-scattering study

      Chang, J., Christensen, N. B. & Lefmann, Kim, 2009, In: Physical Review Letters. 102, 17, p. 177006

      Research output: Contribution to journalJournal articleResearchpeer-review

    17. Published

      Neutron optics and Monte Carlo simulations in NMI3

      Böni, P. & Lefmann, Kim, 2009, In: Neutron News. 20, 1, p. 26-29 3 p.

      Research output: Contribution to journalJournal articleResearchpeer-review

    18. 2008
    19. Published

      Avoided crossing of rattler modes in thermoelectric materials

      Christensen, M., Abrahamsen, A. B., Christensen, N. B., Juranyi, F., Andersen, N. H., Lefmann, Kim, Andreasson, J., Bahl, C. & Iversen, B. B., 2008, In: Nature Materials. 7, 10, p. 811-815

      Research output: Contribution to journalJournal articleResearchpeer-review

    20. Published

      Reduction of data from inverted-geometry time-of-flight instruments

      Tregenna-Piggott, P. L. W., Juryani, F., Christiansen, P., Willendrup, P. & Lefmann, Kim, 2008, In: Journal of Neutron Research. 16, 1&2, p. 13-22 9 p.

      Research output: Contribution to journalJournal articleResearchpeer-review

    21. Published

      Simulation of a multiple-wavelength time-of-fligt neutron spectrometer for a long-pulsed spallation source

      Lefmann, Kim, Schober, H. & Mezei, F., 2008, In: Measurement Science and Technology. 19, 3, p. 034025 12 p.

      Research output: Contribution to journalJournal articleResearchpeer-review

    22. Published

      Tailored instrumentation for long-pulse neutron spallation sources

      Schober, H., Farhi, E., Mezei, F., Andersen, K., Bentley, P. M., Christiansen, P. & Lefmann, Kim, 2008, In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 589, 1, p. 34-46 12 p.

      Research output: Contribution to journalJournal articleResearchpeer-review

    23. Published

      Uniform spin wave modes in antiferromagnetic nanoparticles with uncompensated moments

      Bahl, C. R. H., Garde, J., Lefmann, Kim, Jensen, T. B. S., Lindegård, P., Madsen, D. E. & Mørup, S., 2008, In: European Physical Journal B. Condensed Matter and Complex Systems. 62, 1, p. 53-57 22 p.

      Research output: Contribution to journalJournal articleResearchpeer-review

    24. Published

      Virtual experiments: the ultimate aim of neutron ray-tracing simulations

      Lefmann, Kim, Willendrup, P. K., Udby, L., Lebech, B., Mortensen, Kell, Birk, J. O., Klenø, K. H., Knudsen, E., Christiansen, P., Saroun, J., Kulda, J., Filges, U., Konnecke, M., Tregenna-Piggott, P., Peters, J., Lieutenant, K., Zsigmond, G., Bentley, P. & Fahri, E., 2008, In: Journal of Neutron Research. 16, 3-4, p. 97-111 15 p.

      Research output: Contribution to journalJournal articleResearchpeer-review

    25. 2006
    26. Published

      Realizing the full potential of a RITA spectrometer

      Lefmann, Kim, Abrahamsen, A. B., Bahl, C. R. H., Christensen, N. B., Jacobsen, H. S., Larsen, T. L., Häflinger, P., Filges, U. & Rønnow, H. M., 27 Nov 2006, In: Physica B: Condensed Matter. 385-386, 2, p. 1083-1085

      Research output: Contribution to journalConference articleResearchpeer-review

    27. Published

      Neutron study of magnetic excitations in 8-nm α-Fe2O3 nanoparticles

      Kuhn, L. T., Lefmann, Kim, Bahl, C. R. H., Nyborg Ancona, S., Lindgård, P., Frandsen, C., Madsen, D. E. & Steen, M., 3 Nov 2006, In: Physical Review B. 74, 184406.

      Research output: Contribution to journalJournal articleResearchpeer-review

    28. Published

      Inelastic neutron scattering experiments with the monochromatic imaging mode of the RITA-II spectrometer

      Bahl, C. R. H., Lefmann, Kim, Abrahamsen, A. B., Rønnow, H. M., Saxild, F., Jensen, T. B. S., Udby, L. & Andersen, N. H., 1 May 2006, In: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 246, 2, p. 452-462

      Research output: Contribution to journalJournal articleResearchpeer-review

    29. 2005
    30. Published

      Oriented attachment and exchange coupling of α-Fe2O3 nanoparticles

      Frandsen, C., Bahl, C. R. H., Lebech, B., Lefmann, Kim, Theil Kuhn, L., Keller, L., Andersen, N. H., v.Zimmermann, M., Johnson, Erik, Klausen, S. N. & Mørup, S., 6 Dec 2005, In: Physical Review B. 72, 214406.

      Research output: Contribution to journalJournal articleResearchpeer-review

    31. 2004
    32. Published

      Magnetic anisotropy and quantized spin waves in hematite nanoparticles

      Klausen, S. N., Lefmann, Kim, Lindgård, P., Kuhn, L. T., Bahl, C. R. H., Frandsen, C., Mørup, S., Roessli, B., Cavadini, N. & Niedermayer, C., 9 Dec 2004, In: Physical Review B. 70, 214411.

      Research output: Contribution to journalJournal articleResearchpeer-review

    ID: 3673604