title: Magnetic phase in the near-surface region of an FeBO3 single crystal
abstract: An FeBO3 single crystal was studied from 291 K up to the Neel temperature T(N) = 348.35 K by depth selective conversion electron Mossbauer spectroscopy in ultrahigh vacuum (10(-9) mbar). A new magnetic near-surface phase was found. Its thickness D diverges on approaching T(N) and gives a critical exponent for the correlation length of nu = 0.59(4). The phase boundary between the bulk and near-surface phase could be identified.
authors.affiliation: Fachbereich Materialwissenschaft, Fachgebiet Dunne Schichten, Petersenstrasse 23, TU Darmstadt, D-64287 Darmstadt, Germany.
authors.initials: B
authors.lastname: Stahl
authors.initials: E
authors.lastname: Kankeleit
authors.initials: R
authors.lastname: Gellert
authors.initials: M
authors.lastname: Muller
authors.initials: A
authors.lastname: Kamzin