Kim Lefmann
Professor
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Eliminating line of sight in elliptic guides using gravitational curving
Klenø, K. H., Willendrup, P. K., Lefmann, Kim & Knudsen, E., 1 Apr 2011, In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 634, Suppl. 1, p. S100-S103Research output: Contribution to journal › Conference article › Research › peer-review
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Magnetic field-induced closure of the spin excitation gap near optimal doping in La2-xSrxCuO4: Proceedings of the International Workshop on Neutron Applications on Strongly Correlated Electron Systems 2011 (NASCES11)
Christensen ...[et al.], N. B., Chang, J., Razzoli, E. & Lefmann, Kim, 20 Dec 2011, In: Journal of the Physical Society of Japan. 80, Suppl. B, p. SB030 4 p.Research output: Contribution to journal › Conference article › Research › peer-review
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Temperature dependence of the magnetization of canted spin structures
Jacobsen, Henrik, Lefmann, Kim, Brok, E., Frandsen, C. & Morup, S., 1 Sep 2012, In: Journal of Magnetism and Magnetic Materials. 324, 19, p. 3218-3222 4 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Competing superconducting and magnetic order parameters and field-induced magnetism in electron-doped Ba(Fe1-xCox)(2)As-2
Larsen, J., Uranga, B. M., Stieper, G., fvh927, fvh927, Bernhard, C., Wolf, T., Lefmann, Kim, Andersen, Brian Møller & Niedermayer, C., 13 Jan 2015, In: Physical Review B. 91, 2, 10 p., 025404.Research output: Contribution to journal › Journal article › Research › peer-review
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Constraining neutron guide optimizations with phase-space considerations
Bertelsen, M. & Lefmann, Kim, 11 Sep 2016, In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 830, p. 313-324Research output: Contribution to journal › Journal article › Research › peer-review
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Chemical tunnel-splitting-engineering in a dysprosium-based molecular nanomagnet
Sørensen, M. A., Hansen, U. B., Perfetti, M., Pedersen, K. S., Bartolome, E., Simeoni, G. G., Mutka, H., Rols, S., Jeong, M., Zivkovic, I., Retuerto Millan, M., Arauzo, A., Bartolome, J., Piligkos, Stergios, Weihe, Høgni, Doerrer, L. H., van Slageren, J., Rønnow, H. M., Lefmann, Kim & Bendix, Jesper, 1 Dec 2018, In: Nature Communications. 9, 9 p., 1292.Research output: Contribution to journal › Journal article › Research › peer-review
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VESPA: The vibrational spectrometer for the European Spallation Source
Fedrigo, A., Colognesi, D., Bertelsen, M., Hartl, M., Lefmann, Kim, Deen, P. P., Strobl, M., Grazzi, F. & Zoppi, M., 2 Jun 2016, In: Review of Scientific Instruments. 87, 6, 065101.Research output: Contribution to journal › Journal article › Research › peer-review
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Field-induced interplanar magnetic correlations in the high-temperature superconductor La1.88Sr0.12CuO4
Rømer, A. T., Ray, P. J., Jacobsen, Henrik, Udby, L., Andersen, Brian Møller, Bertelsen, M., fvh927, fvh927, Christensen, N. B., Toft-Petersen, R., Skoulatos, M., Laver, M., Schneidewind, A., Link, P., Oda, M., Ido, M., Nomono, N. & Lefmann, Kim, 11 May 2015, In: Physical Review B. 91, 174507.Research output: Contribution to journal › Journal article › Research › peer-review
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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. 1083-1085Research output: Contribution to journal › Conference article › Research › peer-review
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Neutron guide shielding for the BIFROST spectrometer at ESS
Mantulnikovs, K., Bertelsen, M., Cooper-jensen, C. P., Lefmann, Kim & Klinkby, E. B., 1 Sep 2016, In: Journal of Physics - Conference Series. 746, 1, 012027.Research output: Contribution to journal › Conference article › Research › peer-review
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Magnetic properties of nano-scale hematite, α-Fe2O3, studied by time-of-flight inelastic neutron spectroscopy
Hill, A. H., Jacobsen, Henrik, Ross Stewart, J., Jiao, F., Jensen, N. P., fvh927, fvh927, Mutka, H., Seydel, T., Harrison, A. & Lefmann, Kim, 25 Jan 2014, In: Journal of Chemical Physics. 140, 9 p., 044709.Research output: Contribution to journal › Journal article › Research › peer-review
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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. 77-85Research output: Contribution to journal › Journal article › Research › peer-review
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CAMEA ESS - The Continuous Angle Multi-Energy Analysis Indirect Geometry Spectrometer for the European Spallation Source
Freeman, P. G., Birk, J. O., Marko, M., Bertelsen, M., Christensen, N. B., Lefmann, Kim, Jacobsen, J., Niedermayer, C., Juranyi, F. & Ronnow, H. M., 23 Jan 2015, In: Journal of Physics: Conference Series (Online). 83, 7 p., 03005.Research output: Contribution to journal › Conference article › Research › peer-review
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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
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Dynamical correlation functions of the S=½ nearest-neighbor and Haldane-Shastry Heisenberg antiferromagnetic chains in zero and applied fields
Lefmann, Kim & Rischel, C., 1 Sep 1996, In: Physical Review B. 54, p. 6340-6350Research output: Contribution to journal › Journal article › Research › peer-review
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kernemagnetisk orden i sølv, verden 3. koldeste forsøg ( Nuclear magnetic order in silver the 3rd coldest experiment ever)
Lefmann, Kim & Rasmussen, Finn Berg, 1 Mar 1996, In: Kvant. 8Research output: Contribution to journal › Journal article › Communication
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The monochromatic imaging mode of a RITA-type neutron spectrometer
Bahl, C. R. H., Andersen, P., Klausen, S. N. & Lefmann, Kim, 1 Dec 2004, In: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 228, 4, p. 667-681Research output: Contribution to journal › Journal article › Research › peer-review
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Nanocriticality in the magnetic phase transition of CoO nanoparticles
Kamminga, M. E., Birk, J. O., Hjøllum, J., Jacobsen, Henrik, Lass, J., Koch, T. L., Christensen, N. B., Niedermayer, C., Keller, L., Kuhn, L. T., Ulrikkeholm, E. T., Brok, E., Frandsen, C. & Lefmann, Kim, 2023, In: Physical Review B. 107, 6, 6 p., 064424.Research output: Contribution to journal › Journal article › Research › peer-review
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Exact diagonalization study of the Hubbard-parametrized four-spin ring exchange model on a square lattice
Larsen, C. B., Rømer, A. T., Janas, S., Treue, F., Mønsted, B., Shaik, N. E., Rønnow, H. M. & Lefmann, Kim, 2019, In: Physical Review B. 99, 5, 12 p., 054432.Research output: Contribution to journal › Journal article › Research › peer-review
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Neutron scattering cross section of the S=1/2 Heisenberg triangular antiferromagnet
Lefmann, Kim & Hedegård, Per, 1 Jul 1994, In: Physical Review B. Condensed Matter and Materials Physics. 50, 1047.Research output: Contribution to journal › Journal article › Research › peer-review
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Neutron Experiments on Antiferromagnetic Nuclear Order in Silver at Picokelvin Temperatures
Tuoriniemi, J. T., Nummila, K., Vuorinen, R. T., Lounasmaa, O. V., Metz, A., Siemensmayer, K., Steiner, M., Clausen, K. N., Lefmann, Kim & Rasmussen, Finn Berg, 30 Jun 1995, In: Physical Review Letters. 75, p. 3744-3747Research output: Contribution to journal › Journal article › Research
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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. 092413Research output: Contribution to journal › Journal article › Research › peer-review
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McStas-model of the Delft SESANS
Knudsen, E., Udby, L., Willendrup, P. K., Lefmann, Kim & Bouwman, W. G., 1 Jun 2011, In: Physica B: Condensed Matter. 406, 12, p. 2361-2364Research output: Contribution to journal › Journal article › Research › peer-review
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High-field magnetic phase transitions and spin excitations in magnetoelectric LiNiPO4
Toft-Petersen, R., Jensen, Jens, Jensen, T. B. S., Andersen, N. H., Christensen, N. B., Niedermayer, C., Kenzelmann, M., Skoulatos, M., Le, M. D., Lefmann, Kim, Hansen, S. R., Li, J., Zarestky, J. L. & Vaknin, D., 2 Aug 2011, In: Physical Review B Condensed Matter. 84, 5, p. 054408 10 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Advanced simulations of x-ray beam propagation through CRL transfocators using ray-tracing and wavefront propagation methods
Baltser, J., Vickery, A., Feidenhans'l, Robert Krarup, Lefmann, Kim, Chubar, O., Snigirev, A. & Vaughan, G., 23 Sep 2011, In: Proceedings of SPIE. 8141, p. 814111Research output: Contribution to journal › Conference article › Research › peer-review
ID: 3673604
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Solitonic lattice and Yukawa forces in the rare-earth orthoferrite TbFeO3
Research output: Contribution to journal › Journal article › Research › peer-review
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50 Years of Swiss Neutron Diffraction Instrumentation
Research output: Contribution to journal › Journal article › Research
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Long-Pulse Neutron Instrumentation Workshop, August 26-28, 2009
Research output: Other contribution › Research
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