Research output per year
Research output per year
Personal profile
Primary fields of research
Magnetism
Superconductivity
Correlated electron systems
Neutron scattering instrumentation
Current research
Quantum magnetism in 1D and 2D systems
Quantum phase transitions in 1D and 3D Ising magnets
Frustrated magnetism
Magnetism in high-Tc superconductors
Magnetic structure and magnon-phonon coupling in multiferroics
Magnetic properties of nanosystems
Simulation of neutron scattering instruments for ESS
Knowledge of languages
English: Fluent
German: Moderate
Swedish: Moderate
Teaching
Quantum Magnetism, m.sc.
Neutron scattering, m.sc.
Education/Academic qualification
Physics, Ph.D., Nuclear Magnetic Order in Silver, University of Copenhagen
1 Jan 1992 → 30 Jun 1995
Award Date: 27 Oct 1995
Keywords
- Faculty of Science
- Magnetism
- Superconductivity
- Neutron Scattering
- Quantum Phase Transitions
- Eurorean Spallation Source, ESS
- Neutron and X-ray instrumentation
Collaborations and top research areas from the last five years
Recent external collaboration on country/territory level. Dive into details by clicking on the dots or
Research output
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BIFROST—An indirect geometry cold neutron spectrometer at the European Spallation Source
Toft-Petersen, R., Tucker, G. S., Whitelegg, L., Krighaar, K. M. L., Gallo, T., Marko, M., Kolevatov, R., Rodrigues, S., Saxild, F., Theodor, K., Birk, J. O., Olsen, M. A., Bertelsen, M., Holm-Dahlin, S., Lass, J., Amin, N. L., Hoff-Møller, J., Støvring, I. S., Willendrup, P. K. & Klinkby, E. & 17 others, , 30 Apr 2025, In: Review of Scientific Instruments. 96, 4, 20 p., 043904.Research output: Contribution to journal › Journal article › Research › peer-review
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Dynamic competition between Cooper pair and spin density wave condensation
Decrausaz, B., Pikulski, M., Ivashko, O., Christensen, N. B., Choi, J., Udby, L., Niedermayer, C., Lefmann, K., Rønnow, H. M., Mesot, J., Ollivier, J., Kurosawa, T., Momono, N., Oda, M., Chang, J. & Mazzone, D. G., 9 May 2025, In: Physical Review Research. 7, 2, 7 p., 023131.Research output: Contribution to journal › Journal article › Research › peer-review
Open AccessFile -
Piecewise Linear Approximation of Elliptical Neutron Guides—A Case Study for BIFROST at ESS
Christensen, D. L., Frøystad, R., Olsen, M. A., Krighaar, K. M. L., Husgard, A., Bertelsen, M., Toft-Petersen, R. & Lefmann, K., 11 Feb 2025, In: Quantum Beam Science. 9, 1, 14 p., 5.Research output: Contribution to journal › Journal article › Research › peer-review
Open AccessFile8 Downloads (Pure) -
Rendering the European neutron research landscape
Velichko, E., Abele, H., Barlow, D. J., Benedetto, A., Deledda, S., Van Eijck, L., Fernandez-diaz, M. T., Janoschek, M., Karlsson, M., Lefmann, K., Malikova, N., Marques, M. P. M., Mergia, K., Pieper, J., Rønnow, H. M., Šaroun, J., Schneidewind, A., Schreiber, F., Temst, K. & Wolff, M. & 2 others, , 17 Feb 2025, In: Scientific Reports. 15, 1, 11 p., 5722.Research output: Contribution to journal › Journal article › Research › peer-review
Open AccessFile2 Downloads (Pure) -
Characterizing the diffuse continuum excitations in the classical spin liquid h−YMnO3
Lass, J., Lenander, E. Y., Krighaar, K. M. L., Tošić, T. N., Prabhakaran, D., Deen, P. P., Holm-janas, S. & Lefmann, K., 18 Oct 2024, In: Physical Review B. 110, 14, 15 p., 144429.Research output: Contribution to journal › Journal article › Research › peer-review
Open AccessFile2 Downloads (Pure) -
Field-induced electronic phase separation in the high-temperature superconductor La1.94Sr0.06CuO4+y
fvh927, F., Larsen, J., Jacobsen, H., Rømer, A. T., Tutueanu, A.-E., Ahmad, M., Grivel, J.-C., Scheuermann, R., Zimmermann, M. V., Boehm, M., Steffens, P., Niedermayer, C., Pedersen, K. S., Christensen, N. B., Wells, B. O., Lefmann, K. & Udby, L., 13 May 2024, In: Physical Review B. 109, 17, 13 p., 174517.Research output: Contribution to journal › Journal article › Research › peer-review
Open AccessFile -
Teaching neutron scattering with narratives: Embedding active learning in a narrative to teach modern physics
Bruun, J., Lefmann, K., Karakosta, P. & Harder, S., 2024.Research output: Contribution to conference › Poster › Research › peer-review
File21 Downloads (Pure) -
Use Neutron Scattering to Change the Future: A Classroom Learning Game for High School Physics Teaching
Bruun, J., Karakosta, P., Harder, S., Ivens, D. L. & Lefmann, K., 2024, In: Neutron News. 35, 2, p. 14-15 2 p.Research output: Contribution to journal › Letter
Open AccessFile7 Downloads (Pure)