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Hard Magnetic Off‐Stoichiometric (Fe,Sb) 2+ x Hf 1− x Intermetallic Phase
Author(s) -
Goll D.,
Gross T.,
Loeffler R.,
Pflanz U.,
Vogel T.,
Kopp A.,
Grubesa T.,
Schneider G.
Publication year - 2017
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.201700184
Subject(s) - intermetallic , stoichiometry , ternary operation , ferromagnetism , materials science , phase (matter) , crystallography , magnetometer , crystal structure , analytical chemistry (journal) , condensed matter physics , chemistry , metallurgy , magnetic field , physics , alloy , organic chemistry , quantum mechanics , chromatography , computer science , programming language
By high‐throughput screening the ternary Fe–Hf–Sb system, off‐stoichiometric (Fe,Sb) 2+ x Hf 1− x with a composition of Fe60.0–Hf26.5–Sb13.5 with high potential as hard magnetic phase is discovered. By quantitative domain structure analysis, promising intrinsic properties of J s ∼ 1 T, K 1 ∼ 1.5 MJ m −3 are found at room temperature. By magnetometry, bulk intrinsic properties of J s ∼ 0.7 T, K 1 ∼ 1.4 MJm −3 are found. Alloying elements like Co or Mn turns out to be an effective adjusting screw on the crystal structure and ferromagnetic behavior.