Kim Lefmann

Kim Lefmann

Professor

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    ORCID: 0000-0003-4282-756X

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    1. 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 journal › Conference article › Research › peer-review

    2. Published

      Optimization of Performance, Price, and Background of Long Neutron Guides for European Spallation Source

      fvh927, fvh927, Olsen, M. A., Bertelsen, M., Birk, J. O. & Lefmann, Kim, 1 Sep 2019, In: Quantum Beam Science. 3, 3, 23 p., UNSP16.

      Research output: Contribution to journal › Journal article › Research › peer-review

    3. Published

      Optimizing a neutron-beam focusing device for the direct geometry time-of-flight spectrometer TOFTOF at the FRM II reactor source

      Rasmussen, N. G., Simeoni, G. G. & Lefmann, Kim, 2016, In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 816, p. 106-112 7 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    4. Published

      Optimizing neutron guides: CoatingWriter

      Olsen, M. A., Bertelsen, M. & Lefmann, Kim, 12 Dec 2018, In: Journal of Neutron Research. 20, 4, p. 137-139

      Research output: Contribution to journal › Journal article › Research › peer-review

    5. 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 journal › Journal article › Research › peer-review

    6. Published

      Polarized neutron powder diffraction studies of antiferromagnetic order in bulk and nanoparticle NiO

      Brok, E., Lefmann, Kim, Deen, P. P., Lebech, B., Jacobsen, Henrik, G., N. & Frandsen, C., 26 Jan 2015, In: Physical Review B. 91, 014431.

      Research output: Contribution to journal › Journal article › Research › peer-review

    7. Published

      Powder diffractometers at long-pulsed sources: Proceedings of the International Workshop on Neutron Applications on Strongly Correlated Electron Systems 2011 (NASCES11)

      Sales, M., fvh927, fvh927, Lieutenant, K. & Lefmann, Kim, 20 Dec 2011, In: Journal of the Physical Society of Japan. 80, Suppl.B, p. SB018 4 p.

      Research output: Contribution to journal › Conference article › Research › peer-review

    8. Published

      Prediction of beam hardening artefacts in computed tomography using Monte Carlo simulations

      Thomsen, M., Knudsen, E. B., Willendrup, P. K., Bech, M., Willner, M., Pfeiffer, F., Poulsen, M., Lefmann, Kim & Feidenhans'l, Robert Krarup, 2015, In: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 342, p. 314-320 7 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    9. Published

      Prismatic analyzer concept for neutron spectrometers

      Birk, J. O., Marko, M., Freeman, P. G., Jacobsen, J., Hansen, R. L., Niedermayer, C., Christensen, N. B., Måsson, M., Rønnow, H. M. & Lefmann, Kim, 1 Nov 2014, In: Review of Scientific Instruments. 85, 11, 113908.

      Research output: Contribution to journal › Journal article › Research › peer-review

    10. Published

      Prototype of the novel CAMEA concept—A backend for neutron spectrometers

      Marko, M., Groitl, F., Lass, J., Birk, J. O., Freeman, P., Lefmann, Kim, Christensen, N. B., Niedermayer, C., Juranyi, F., Lass, J., Hansen, A. & Rønnow, H. M., Jan 2018, In: Review of Scientific Instruments. 89, 1, 13 p., 015105.

      Research output: Contribution to journal › Journal article › Research › peer-review

    11. Published

      Q-dependent electron-phonon coupling induced phonon softening and non-conventional critical behavior in the CDW superconductor LaPt2Si2

      Nocerino, E., Stuhr, U., San Lorenzo, I., Mazza, F., Mazzone, D. G., Hellsvik, J., Hasegawa, S., Asai, S., Masuda, T., Itoh, S., Minelli, A., Hossain, Z., Thamizhavel, A., Lefmann, Kim, Sassa, Y. & Månsson, M., 2023, In: Journal of Science: Advanced Materials and Devices. 8, 4, 10 p., 100621.

      Research output: Contribution to journal › Journal article › Research › peer-review

    12. Published

      Race to Space: Use Neutron Scattering to Change the Future

      Bruun, Jesper, Harder, S., Karakosta, Petroula & Lefmann, Kim, 1 Oct 2023

      Research output: Other contribution › Education

    13. 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 journal › Conference article › Research › peer-review

    14. 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 journal › Journal article › Research › peer-review

    15. Published

      Simulating X-ray telescopes with McXtrace: A case study of ATHENA's optics

      Ferreira, D. D. M., Knudsen, E. B., Westergaard, N. J., Christensen, F. E., Massahi, S., Shortt, B., Spiga, D., Solstad, M. & Lefmann, Kim, 26 Jun 2016, In: Proceedings of S P I E - International Society for Optical Engineering. 9905, UNSP 990576.

      Research output: Contribution to journal › Conference article › Research › peer-review

    16. 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 journal › Journal article › Research › peer-review

    17. Published

      Simulation of a suite of generic long-pulse neutron instruments to optimize the time structure of the European Spallation Source

      Lefmann, Kim, Klenø, K. H., Birk, J. O., Hansen, B. R., fvh927, fvh927, Knudsen, E., Lieutenant, K., von Moos, L., Sales, M., Willendrup, P. K. & Andersen, K. H., 2013, In: Review of Scientific Instruments. 84, 5, 9 p., 055106.

      Research output: Contribution to journal › Journal article › Research › peer-review

    18. 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 contribution › Research

    19. Published

      Simulation of waviness in neutron guides

      Hansen, U. B., Bertelsen, M., Lefmann, Kim & Bergbäck Knudsen, E., 31 Dec 2015, In: Journal of Neutron Research. 18, 2-3, 45-59.

      Research output: Contribution to journal › Journal article › Research › peer-review

    20. Published

      Simulations of chopper jitter at the LET neutron spectrometer at the ISIS TS2

      Klenø, K. H., Lefmann, Kim, Willendrup, P. K., Christiansen, P. & Bewley, R., 9 Apr 2014, In: Journal of Neutron Research. 17, 2, p. 77-85

      Research output: Contribution to journal › Journal article › Research › peer-review

    21. Published

      Solitonic lattice and Yukawa forces in the rare-earth orthoferrite TbFeO3

      Artyukhin, S., Mostovoy, M., Jensen, N. P., Le, D., Prokes, K., de paula, V. G., Nunes Bordallo, Heloisa, Maljuk, A., Landsgesell, S., Ryll, H., Klemke, B., Paeckel, S., Kiefer, K., Lefmann, Kim, Kuhn, L. T. & Argyriou, D. N., 24 Jun 2012, In: Nature Materials. 11, 8, p. 694-699 6 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    22. Published

      Special Issue: Workshop on the Monte Carlo Simulation of Neutron Scattering Instruments MCNSI7

      Lefmann, Kim & Šaroun, J., 1 Jan 2014, In: Journal of Neutron Research. 17, 1, p. 3-3

      Research output: Contribution to journal › Journal article › Research › peer-review

    23. Published

      Spin Dynamics of the 2D Spin ½ Quantum Antiferromagnet Copper Deuteroformate Tetradeuterate (CFTD)

      Rønnow, H. M., McMorrow, D. F., Goldea, R., Harrison, A., Youngson, I. D., Perring, T. G., Aeppli, G., Syljuåsen, O. F., Lefmann, Kim & Rischel, C., 28 Jun 2001, In: Physical Review Letters. 87, 037202.

      Research output: Contribution to journal › Journal article › Research › peer-review

    24. Published

      Spin excitations and quantum criticality in the quasi-one-dimensional Ising-like ferromagnet CoCl2 center dot 2D2O in a transverse field

      Larsen, J., Schaffer, T. K., Hansen, U. B., fvh927, fvh927, Ahl, S. R., Toft-Petersen, R., Taylor, J., Ehlers, G., Jensen, Jens, Ronnow, H. M., Lefmann, Kim & Christensen, N. B., 20 Nov 2017, In: Physical Review B. 96, 17, 174424.

      Research output: Contribution to journal › Journal article › Research › peer-review

    25. Published

      Spin orientation in solid solution hematite-ilmenite

      Brok, E., Frandsen, C., Lefmann, Kim, McEnroe, S., Robinson, P., Burton-Pye, B. P., Hansen, T. C. & Harrison, R., 2017, In: American Mineralogist. 102, 6, p. 1234-1243 10 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

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