Stahl B, Kankeleit E, Gellert R, Muller M, Kamzin A. Magnetic phase in the near-surface region of an FeBO3 single crystal.
PHYSICAL REVIEW LETTERS 2000;
84:5632-5635. [PMID:
10991012 DOI:
10.1103/physrevlett.84.5632]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/1999] [Indexed: 05/23/2023]
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.
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