% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@INPROCEEDINGS{Pfleiderer:1034065,
      author       = {Pfleiderer, Christian and Schmalzl, Karin and Beddrich,
                      Lukas and Skoulatos, Markos and Tang, Ran and Georgii,
                      Robert and Raymond, Stephane and Schmidt, Wolfgang and Du,
                      Ye},
      title        = {{M}agnetic {F}luctuations in {F}e{S}i},
      reportid     = {FZJ-2024-06886},
      year         = {2024},
      abstract     = {Our research focuses on the magnetic properties of FeSi,
                      particularly investigating the potentialpresence of magnetic
                      chirality through neutron spin-dependent scattering
                      experiments. FeSi, whichcrystallizes in the P213 space
                      group, shows a distinct increase in bulk magnetic
                      susceptibility withtemperature, peaking around T = 500 K.
                      Despite this, it exhibits no long-range magnetic order
                      acrossthe entire temperature range. However, magnetic
                      fluctuations are observed at ambient and highertemperatures.
                      This study expands on previous work exploring the magnetic
                      behaviour of FeSi andthe related compound MnSi, which also
                      belongs to the P213 space group. MnSi has been shown
                      todemonstrate a skyrmion lattice phase, a unique magnetic
                      state with chiral fluctuations, which weaim to compare with
                      FeSi.Using polarized neutron beams and xyz-polarization
                      analysis on the IN12 triple-axis spectrometer,we conducted a
                      detailed examination of the magnetic fluctuations in FeSi.
                      We aimed to determinewhether chiral magnetic scattering is
                      an intrinsic feature of crystals with the B20 structure, a
                      crystalstructure known for its non-centrosymmetric
                      properties. We measured the differences in neutronscattering
                      intensities for distinct spin configurations and applied
                      flipping ratio corrections to enhancethe accuracy of our
                      results. While magnetic fluctuations were observed, the
                      analysis showedonly a small chiral component, suggesting
                      that chirality is not a pervasive magnetic feature in
                      FeSi,unlike in MnSi.Our findings’ comparison with the
                      magnetic fluctuations in MnSi provides insights into
                      FeSi’s magneticbehaviour that could have a significant
                      impact on the scientific community. It may help explainthe
                      enhancement of the topological Hall effect observed in
                      Mn(1-x)Fe(x)Si alloys. These results contributeto
                      understanding the complex magnetic ground states in
                      materials with non-centrosymmetriccrystal structures.20},
      month         = {Dec},
      date          = {2024-12-11},
      organization  = {Flipper 2024 as a satellite workshop
                       of the ILL/ESS user meeting, Institut
                       Laue-Langevin (ILL) located on the
                       European Photon and Neutron (EPN)
                       campus (France), 11 Dec 2024 - 13 Dec
                       2024},
      subtyp        = {Invited},
      cin          = {JCNS-2 / JARA-FIT / JCNS-4 / JCNS-ILL},
      cid          = {I:(DE-Juel1)JCNS-2-20110106 / $I:(DE-82)080009_20140620$ /
                      I:(DE-Juel1)JCNS-4-20201012 / I:(DE-Juel1)JCNS-ILL-20110128},
      pnm          = {632 - Materials – Quantum, Complex and Functional
                      Materials (POF4-632) / 6G4 - Jülich Centre for Neutron
                      Research (JCNS) (FZJ) (POF4-6G4)},
      pid          = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G4},
      experiment   = {EXP:(DE-Juel1)ILL-IN12-20150421},
      typ          = {PUB:(DE-HGF)6},
      url          = {https://juser.fz-juelich.de/record/1034065},
}