title: Helimagnetism of Fe: high pressure study of an Y2Fe17 single crystal.
abstract: In this Letter we present direct observation of the Fe helimagnetism in an Y2Fe17 single crystal under pressure. Combined neutron diffraction and magnetization measurements under pressure showed that the collinear ferromagnetic phase of Y2Fe17 is substituted by the pressure induced helical incommensurate phases. The complex pressure-temperature-field behavior of the pressure induced helical magnetic phases is attributed to intrinsic properties of the iron sublattice that gives a valuable contribution to the discussion about dominating theoretical models of magnetism in gamma-Fe.
authors.affiliation: Institute of Physics AS CR, Na Slovance 2, 182 21 Prague 8, Czech Republic. prokhnen@fzu.cz
authors.forename: O
authors.initials: O
authors.lastname: Prokhnenko
authors.forename: J
authors.initials: J
authors.lastname: Kamarád
authors.forename: K
authors.initials: K
authors.lastname: Prokes
authors.forename: Z
authors.initials: Z
authors.lastname: Arnold
authors.forename: A V
authors.initials: AV
authors.lastname: Andreev