The PSI Center for Neutron and Muon Sciences uses neutrons and muons to explore and understand matter and materials.
Lab News & Scientific Highlights
Anomalous Hall Effect due to Magnetic Fluctuations in a Ferromagnetic Weyl Semimetal
The anomalous Hall effect (AHE) has emerged as a key indicator of time-reversal symmetry breaking (TRSB) and topological features in electronic band structures. Absent of a magnetic field, the AHE requires spontaneous TRSB but has proven hard to probe due to averaging over domains. The anomalous component of the Hall effect is thus frequently derived from extrapolating the magnetic field dependence of the Hall response. We show ....
Two Characteristic Contributions to the Superconducting State of 2H-NbSe2
Multiband superconductivity arises when multiple electronic bands contribute to the formation of the superconducting state, allowing distinct pairing interactions and gap structures. Here, we present field- and temperature-dependent data ...
Observation of the spiral spin liquid in a triangular-lattice material
The spiral spin liquid (SSL) is a highly degenerate state characterized by a continuous contour or surface in reciprocal space spanned by a spiral propagation vector. Although the SSL state has been predicted in a number of various theoretical models, very few materials are so far experimentally identified to host such a state. Via combined single-crystal wide-angle and small-angle neutron scattering, we report observation ...
Doping dependence of the dipolar correlation length scale in metallic SrTiO3
Superconducting domes, ubiquitous across a variety of quantum materials, are often understood as a window in which pairing is favored, opened by the fluctuations of competing orders. Yet, the understanding of how such a window closes is missing. Here, we show that inelastic neutron scattering ...
Pressure-enhanced splitting of density wave transitions in La3Ni2O7–δ
The observation of superconductivity in La3Ni2O7–δ under pressure, following the suppression of a high-temperature density wave state, has attracted considerable attention. The nature of this density wave order was not clearly identified. Here we probe the magnetic response of the zero-pressure phase of La3Ni2O7–δ as hydrostatic pressure is applied, and find that the apparent single density wave transition at zero applied pressure splits into two. The comparison of our muon-spin rotation ...
Outstanding Paper Award
A recent paper by the "Applied Materials Group" of the LNS and their coworkers received the "Outstanding Paper Award" of the journal "Materials and Structures".
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Recent CNM publications
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A. A, Kalal S, Saravanan K, Ojha S, Stahn J, Gupta M
Study of structural and magnetic properties of Pd-doped Co4N thin films
Journal of Superconductivity and Novel Magnetism. 2025; 38(1): 17 (7 pp.). https://doi.org/10.1007/s10948-024-06880-w
DORA PSI -
Abel C, Ayres NJ, Ban G, Bison G, Bodek K, Bondar V, et al.
Generating a highly uniform magnetic field inside the magnetically shielded room of the n2EDM experiment
European Physical Journal C: Particles and Fields. 2025; 85(2): 202 (19 pp.). https://doi.org/10.1140/epjc/s10052-025-13902-x
DORA PSI -
Agarwal M, Zika A, Yücel M, Schweins R, Kohlbrecher J, Gröhn F
The role of light irradiation and dendrimer generation in directing electrostatic self-assembly
Polymers. 2025; 17(2): 170 (27 pp.). https://doi.org/10.3390/polym17020170
DORA PSI