title: Scrutinizing Hall Effect in Mn_{1-x}Fe_{x}Si: Fermi Surface Evolution and Hidden Quantum Criticality.
abstract: Separating between the ordinary Hall effect and anomalous Hall effect in the paramagnetic phase of Mn_{1-x}Fe_{x}Si reveals an ordinary Hall effect sign inversion associated with the hidden quantum critical (QC) point x^{*}∼0.11. The effective hole doping at intermediate Fe content leads to verifiable predictions in the field of fermiology, magnetic interactions, and QC phenomena in Mn_{1-x}Fe_{x}Si. The change of electron and hole concentrations is considered as a "driving force" for tuning the QC regime in Mn_{1-x}Fe_{x}Si via modifying the Ruderman-Kittel-Kasuya-Yosida exchange interaction within the Heisenberg model of magnetism.
authors.affiliation: Prokhorov General Physics Institute of RAS, 38 Vavilov street, 119991 Moscow, Russia.|Moscow Institute of Physics and Technology, 9 Institutskiy lane, 141700 Dolgoprudny, Moscow region, Russia.
authors.forename: V V
authors.initials: VV
authors.lastname: Glushkov
authors.affiliation: Prokhorov General Physics Institute of RAS, 38 Vavilov street, 119991 Moscow, Russia.|Moscow Institute of Physics and Technology, 9 Institutskiy lane, 141700 Dolgoprudny, Moscow region, Russia.
authors.forename: I I
authors.initials: II
authors.lastname: Lobanova
authors.affiliation: Prokhorov General Physics Institute of RAS, 38 Vavilov street, 119991 Moscow, Russia.
authors.forename: V Yu
authors.initials: VY
authors.lastname: Ivanov
authors.affiliation: Prokhorov General Physics Institute of RAS, 38 Vavilov street, 119991 Moscow, Russia.
authors.forename: V V
authors.initials: VV
authors.lastname: Voronov
authors.affiliation: Swiss-Norwegian Beamlines at the European Synchrotron Radiation Facility, 38000 Grenoble, France.
authors.forename: V A
authors.initials: VA
authors.lastname: Dyadkin
authors.affiliation: Petersburg Nuclear Physics Institute, Gatchina, 188300 Saint-Petersburg, Russia.
authors.forename: N M
authors.initials: NM
authors.lastname: Chubova
authors.affiliation: Petersburg Nuclear Physics Institute, Gatchina, 188300 Saint-Petersburg, Russia.
authors.forename: S V
authors.initials: SV
authors.lastname: Grigoriev
authors.affiliation: Prokhorov General Physics Institute of RAS, 38 Vavilov street, 119991 Moscow, Russia.|Moscow Institute of Physics and Technology, 9 Institutskiy lane, 141700 Dolgoprudny, Moscow region, Russia.
authors.forename: S V
authors.initials: SV
authors.lastname: Demishev