Kim Lefmann
Professor
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The magnetic properties of MAl4(OH)12SO4·3H2O with M = Co2+, Ni2+, and Cu2+ determined by a combined experimental and computational approach
Andersen, A. B. A., Christiansen, R. T., Holm-Janas, S., Manvell, A. S., Pedersen, K. S., Sheptyakov, D., Embs, J. P., Jacobsen, H., Dachs, E., Vaara, J., Lefmann, Kim & Nielsen, U. G., 2023, In: Physical Chemistry Chemical Physics. 25, 4, p. 3309–3322 14 p.Research output: Contribution to journal › Journal article › Research › peer-review
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The instrument suite of the European Spallation Source
Andersen, K. H., Argyriou, D. N., Jackson, A. J., Houston, J., Henry, P. F., Deen, P. P., Toft-Petersen, R., Beran, P., Strobl, M., Arnold, T., Wacklin-Knecht, H., Tsapatsaris, N., Oksanen, E., Woracek, R., Schweika, W., Mannix, D., Hiess, A., Kennedy, S., Kirstein, O., Petersson Årsköld, S. & 30 others, , 21 Mar 2020, In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 957, 39 p., 163402.Research output: Contribution to journal › Journal article › Research › peer-review
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Monte Carlo simulations as a part of the configuration for neutron instruments
Andersen, P., Lefmann, Kim, Kuhn, L. T., Willendrup, P. K. & Farhi, E., 3 Sep 2004, In: Physica B: Condensed Matter. 350, p. e721-e724Research output: Contribution to journal › Conference article › Research › peer-review
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"European Spallation Source - Technical Design Report"
Arleth, Lise, Bertelsen, M., Birk, J. O., Nunes Bordallo, Heloisa, Carlsen, H., Hansen, U. B., fvh927, fvh927, Høpfner, L., Jacobsen, Henrik, Klenø, K. H., Kynde, S. A. R., Lefmann, Kim, Rasmussen, N., Sales, M., Skar-Gislinge, Nicholas, Skelboe, Stig, Theodor, K., Udby, L., Vickery, A. & Rod, T. H., 15 Apr 2013, Technical Design Report . ESS Lund ed. Lund, SverigeResearch output: Chapter in Book/Report/Conference proceeding › Report chapter › Research › peer-review
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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
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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 journal › Journal article › Research › peer-review
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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. 452-462Research output: Contribution to journal › Journal article › Research › peer-review
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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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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
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McXtrace: a Monte Carlo software package for simulation of X-ray optics, beamlines, and experiments
Bergbäck Knudsen, E., Prodi, A., Baltser, J., Thomsen, M., Willendrup, P. K., del Rio, M. S., Ferrero, C., Farhi, E., Haldrup, M. K., Vickery, A., Feidenhans'l, Robert Krarup, Mortensen, Kell, Nielsen, M. M., Poulsen, H. F., Schmidt, S. & Lefmann, Kim, 1 Jun 2013, In: Journal of Applied Crystallography. 46, Part 3, p. 679-696 18 p.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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Exploring performance of neutron guide systems using pinhole beam extraction
Bertelsen, M., Jacobsen, Henrik, Hansen, U. B., Carlsen, H. H. & Lefmann, Kim, 21 Nov 2013, In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 729, p. 387-398Research output: Contribution to journal › Journal article › Research › peer-review
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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
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Hindered Rotational Energy Barriers of BH4 Tetrahedra in beta-Mg(BH4)(2) from Quasielastic Neutron Scattering and DFT Calculations
Blanchard, D., Maronsson, J. B., Riktor, M. D., Kheres, J., Sveinbjörnsson, D., Gil Bardaji, E., Léon, A., Juranyi, F., Wuttke, J., Lefmann, Kim, Hauback, B. C., Fichtner, M. & Vegge, T., 19 Jan 2012, In: Journal of Physical Chemistry C. 116, 2, p. 2013-2023 10 p.Research output: Contribution to journal › Journal article › Research › peer-review
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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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Magnetic properties of ultra-small goethite nanoparticles
Brok, E., Frandsen, C., Madsen, D. E., Jacobsen, Henrik, Birk, J. O., Lefmann, Kim, Bendix, Jesper, Pedersen, K. S., Boothroyd, C. B., Berhe, A. A., Simeoni, G. G. & Mørup, S., 9 Oct 2014, In: Journal of Physics D: Applied Physics. 47, 36, 365003.Research output: Contribution to journal › Journal 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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Off-axis spin orientation in goethite nanoparticles
Brok, E., Lefmann, Kim, Nilsen, G. J., Kure, M. & Frandsen, C., 19 Sep 2017, In: Physical Review B. 96, 10, 104426.Research output: Contribution to journal › Journal article › Research › peer-review
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Experimental evidence for lamellar magnetism in hemo-ilmenite by polarized neutron scattering
Brok, E., Sales, M., Lefmann, Kim, Kuhn, L. T., Schmidt, W. F., Roessli, B., McEnroe, S. A. & Harrison, R. J., 26 Feb 2014, In: Physical Review B. 89, 054430.Research output: Contribution to journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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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. 177006Research output: Contribution to journal › Journal article › Research › peer-review
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Study of solid-surface-induced molecular dissociation leading to atomic excitations
rtc312, rtc312, Jensen, J. O., Lefmann, Kim, Solvsteen, C. & Veje, E., 1 Mar 1986, In: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 13, 1-3, p. 230-234Research output: Contribution to journal › Journal article › Research › peer-review
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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. 811-815Research output: Contribution to journal › Journal 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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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, USAResearch output: Other contribution › Research
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24-spin clusters in the mineral boleite KPb26Ag9Cu24Cl62(OH)48
Dreier, E. S., fvh927, fvh927, Lonbaek, K., Hansen, U. B., Medarde, M., Zivkovic, I., Babkevich, P., Ruminy, M., Casati, N., Piovano, A., Rols, S., Nilsen, G. J., Boehm, M., Skoulatos, M., Schefer, J., Ronnow, H. M., Fennell, T. & Lefmann, Kim, 17 Jan 2018, In: Physical Review B. 97, 1, 014416.Research output: Contribution to journal › Journal article › Research › peer-review
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Dipolar spin ice under uniaxial pressure
Edberg, R., Sandberg, L. O., Bakke, I. M. B., Haubro, M. L., Folkers, L. C., Mangin-Thro, L., Wildes, A., Zaharko, O., Guthrie, M., Holmes, A. T., Sorby, M. H., Lefmann, Kim, Deen, P. P. & Henelius, P., 25 Oct 2019, In: Physical Review B. 100, 14, 8 p., 144436.Research output: Contribution to journal › Journal article › Research › peer-review
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Effects of uniaxial pressure on the spin ice Ho2Ti2O7
Edberg, R., Bakke, I. M. B., Kondo, H., Sandberg, L. O., Haubro, M. L., Guthrie, M., Holmes, A. T., Engqvist, J., Wildes, A., Matsuhira, K., Lefmann, Kim, Deen, P. P., Mito, M. & Henelius, P., 9 Nov 2020, In: Physical Review B. 102, 18, 12 p., 184408.Research output: Contribution to journal › Journal article › Research › peer-review
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Zero-order filter for diffractive focusing of de Broglie matter waves
Eder, S. D., Ravn, A. K., Samelin, B., Bracco, G., Palau, A. S., Reisinger, T., Knudsen, E. S., Lefmann, Kim & Holst, B., 2017, In: Physical Review A. 95, 2, 5 p., 023618.Research output: Contribution to journal › Journal article › Research › peer-review
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Neutron imaging study of 'pattern-welded' swords from the Viking Age
Fedrigo, A., Strobl, M., Williams, A. R., Lefmann, Kim, Lindelof, Poul Erik, Jørgensen, L., Pentz, P., Bausenwein, D., Schillinger, B., Kovyakh, A. & Grazzi, F., 2018, In: Archaeological and Anthropological Sciences. 10, 6, p. 1249-1263 15 p.Research output: Contribution to journal › Journal article › Research › peer-review
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Extraction of archaeological information from metallic artefacts-A neutron diffraction study on Viking swords
Fedrigo, A., Grazzi, F., Williams, A. R., Panzner, T., Lefmann, Kim, Lindelof, Poul Erik, Jørgensen, L., Pentz, P., Scherillo, A., Porcher, F. & Strobl, M., 2017, In: Journal of Archaeological Science: Reports. 12, p. 425-436 12 p.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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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
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Monolithic atom interferometry
Fiedler, J., Lefmann, Kim, Von Klitzing, W. & Holst, B., 7 Aug 2023, In: Physical Review A. 108, 2, 8 p., 023306.Research output: Contribution to journal › Journal article › Research › peer-review
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50 Years of Swiss Neutron Diffraction Instrumentation
Fischer, P., Schefer, J., Keller, L., Zaharko, O., Pomjakushin, V., Aliouane, N., Frontzek, M., fvh927, fvh927, Lefmann, Kim & Christensen, M., 2 Aug 2013, In: Swiss Neutron News. 42, p. 4-15 11 p.Research output: Contribution to journal › Journal article › Research
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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
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Spin reorientation in a-Fe2O3 nanoparticles induced by interparticle exchange interactions in a-Fe2O3/NiO nanocomposites
Frandsen..[et al.], C., Lefmann, Kim, Lebech, B., Bahi, C. R. H., Brok, E., Ancona, S. N. & Theil Kuhn, L., 22 Dec 2011, In: Physical Review B Condensed Matter. 84, 21, p. 214435 10 p.Research 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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Spin susceptibility of the topological superconductor UPt3 from polarized neutron diffraction
Gannon, W. J., Halperin, W. P., Eskildsen, M. R., Dai, P., Hansen, U. B., Lefmann, Kim & Stunault, A., 10 Jul 2017, In: Physical Review B. 96, 4, 041111.Research output: Contribution to journal › Journal article › Research › peer-review
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Magnetic Bloch oscillations and domain wall dynamics in a near-Ising ferromagnetic chain
Hansen, U. B., Syljuåsen, O. F., Jensen, Jens, Schäffer, T. K., Andersen, C. R., Boehm, M., Rodriguez-rivera, J. A., Christensen, N. B. & Lefmann, Kim, 10 May 2022, In: Nature Communications. 13, 1, 9 p., 2547.Research output: Contribution to journal › Journal article › Research › peer-review
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An optional focusing SELENE extension to conventional neutron guides: A case study for the ESS instrument BIFROST
Hansen, U. B., Bertelsen, M., Stahn, J. & Lefmann, Kim, 3 Feb 2017, In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 852, p. 46-56Research output: Contribution to journal › Journal article › Research › peer-review
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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
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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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Neutron guide-split: A high performance guide bundle concept for elliptical guides
fvh927, fvh927, Rasmussen, N., Høpfner, L., Bertelsen, M., Voigt, J., Andersen, K. H. & Lefmann, Kim, 11 May 2015, In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 782, p. 1-8 8 p.Research output: Contribution to journal › Journal article › Research › peer-review
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HEIMDAL: A thermal neutron powder diffractometer with high and flexible resolution combined with SANS and neutron imaging - Designed for materials science studies at the European Spallation Source
fvh927, fvh927, Lefmann, Kim, Henry, P. F., Bertelsen, M., Schefer, J. & Christensen, M., 21 Aug 2016, In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 828, p. 229-241Research output: Contribution to journal › Journal article › Research › peer-review
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Erratum: Magnetic ground state and magnon-phonon interaction in multiferroic h-YMnO3
fvh927, fvh927, Kreisel, Andreas, Schäffer, T. K., Bakke, A., Bertelsen, M., Hansen, U. B., Retuerto, M., Larsen, J., Prabhakaran, D., Deen, P. P., Yamani, Z., Birk, J. O., Stuhr, U., Niedermayer, C., Fennell, A. L., Andersen, Brian Møller & Lefmann, Kim, 17 Sep 2018, In: Physical Review B. 97, 9, 134304.Research output: Contribution to journal › Comment/debate › Research › peer-review
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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
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Magnetic ground state and magnon-phonon interaction in multiferroic h-YMnO3
fvh927, fvh927, Kreisel, Andreas, Schäffer, T. K., Bakke, A., Bertelsen, M., Hansen, U. B., Retuerto Millan, M., Larsen, J., Prabhakaran, D., Deen, P. P., Yamani, Z., Birk, J. O., Stuhr, U., Niedermayer, C., Fennell, A. L., Andersen, Brian Møller & Lefmann, Kim, 2018, In: Physical Review B. 97, 13, 11 p., 134304 .Research output: Contribution to journal › Journal article › Research › peer-review
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Material properties particularly suited to be measured with helium scattering: selected examples from 2D materials, van der Waals heterostructures, glassy materials, catalytic substrates, topological insulators and superconducting radio frequency materials
Holst, B., Alexandrowicz, G., Avidor, N., Benedek, G., Bracco, G., Ernst, W. E., Farias, D., Jardine, A. P., Lefmann, Kim, Manson, J. R., Marquardt, R., Artes, S. M., Sibener, S. J., Wells, J. W., Tamtoegl, A. & Allison, W., 7 Apr 2021, In: Physical Chemistry Chemical Physics. 23, 13, p. 7653-7672 20 p.Research output: Contribution to journal › Journal article › Research › peer-review
ID: 3673604
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1675
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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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1150
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50 Years of Swiss Neutron Diffraction Instrumentation
Research output: Contribution to journal › Journal article › Research
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856
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Long-Pulse Neutron Instrumentation Workshop, August 26-28, 2009
Research output: Other contribution › Research
Published