% 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{Rai:894014,
      author       = {Rai, Venus and Jana, Subhadip and Nandi, Shibabrata and
                      Perßon, Jörg and Meven, Martin and Dutta, Rajesh and
                      Brückel, Thomas},
      title        = {{C}hiral anomaly and anomalous {H}all effect in
                      {H}exagonal-{M}n3+δ{G}e},
      reportid     = {FZJ-2021-02981},
      year         = {2021},
      abstract     = {Chiral anomaly and anomalous Hall effect in
                      Hexagonal-Mn3+δGeTopological quantum materials have
                      attracted enormous attention since their discovery due to
                      the observedanomalous transport properties, which originate
                      from the non-zero Berry curvature. Mn3+δGe has
                      gainedspecial attention because of its large anomalous
                      transport effects that persist starting from Néel
                      temperature(365 K) down to 2 K [1]. Due to the specific
                      mirror symmetry of the triangular antiferromagnetic
                      structure,Anomalous transport effects are expected to be
                      observed when magnetic field (B) is applied along the x or
                      y57 crystallographic axis [1]. Chiral anomaly, which is one
                      of the prominent signatures of Weyl semimetals, hasnot been
                      extensively investigated in the case of Mn3+δGe. We have
                      performed planar Hall effect (PHE) andlongitudinal
                      magneto-resistance (LMR) measurements with varying angle,
                      temperature, and magnetic field.In general, chiral anomaly
                      effects should strengthen with the increase in magnetic
                      field [2]. However, in thecase of Mn3+δGe, chiral anomaly
                      was observed to be suppressed in LMR and PHE measurements,
                      when themagnetic field is increased at low temperature,
                      which is surprising. Our single crystal neutron
                      diffractionmeasurement did not show any anomaly in magnetic
                      parameters below room temperature. However, X-Raydiffraction
                      has shown maxima in lattice parameters near 235 K, below
                      which change in electrical transportbehavior was observed.
                      Therefore, it can be argued that the chiral anomaly and
                      position of Weyl points aremuch more sensitive to the change
                      in lattice parameters, in comparison with magnetic
                      parameters.[1] A. K. Nayak, J. E. Fischer, Y. Sun, B. Yan,
                      J. Karel, A. C. Komarek, C. Shekhar, N. Kumar, W.Schnelle,
                      J. Kübler, C. Felser, and S. S. P. Parkin, Sci. Adv. 2,
                      e1501870 (2016)[2] N. Kumar, S. N. Guin, C. Felser, and C.
                      Shekhar, Phys. Rev. B 98, 041103(R) (2018)},
      month         = {Apr},
      date          = {2021-04-12},
      organization  = {IOP Magnetism 2021, online event
                       (online event), 12 Apr 2021 - 13 Apr
                       2021},
      cin          = {JCNS-2 / PGI-4 / JARA-FIT / JCNS-FRM-II},
      cid          = {I:(DE-Juel1)JCNS-2-20110106 / I:(DE-Juel1)PGI-4-20110106 /
                      $I:(DE-82)080009_20140620$ /
                      I:(DE-Juel1)JCNS-FRM-II-20110218},
      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},
      typ          = {PUB:(DE-HGF)1},
      url          = {https://juser.fz-juelich.de/record/894014},
}