TY - JOUR
T1 - New soft magnetic material of α′-Fe-C with high Bs
AU - Takahashi, Migaku
AU - Takahashi, Yukiko
AU - Sunaga, Kazuyuki
AU - Shoji, Hiroki
PY - 2002/2
Y1 - 2002/2
N2 - Epitaxial Fe-C films consisting of an α′-Fe-C single phase with a C content up to 12 at% can be synthesized on MgO single crystal substrates by sputtering. The saturation magnetization for the α′-Fe-C films maintains a constant value of about 210 emu/g (≈ 2.1 T) up to 8 at% C. The easy axis of magnetization of α′-Fe-C films lies in the (0 0 1) plane. The uniaxial magnetocrystalline anisotropy constant for α′-Fe-C is -0.5 × 106 erg/cm3 independent of the C content. The coercive force for the α′-Fe-C films with C content more than 4 at% is about 2 Oe. The α′-Fe-C films with 4-8 at% C are promising candidates for use as writing head material.
AB - Epitaxial Fe-C films consisting of an α′-Fe-C single phase with a C content up to 12 at% can be synthesized on MgO single crystal substrates by sputtering. The saturation magnetization for the α′-Fe-C films maintains a constant value of about 210 emu/g (≈ 2.1 T) up to 8 at% C. The easy axis of magnetization of α′-Fe-C films lies in the (0 0 1) plane. The uniaxial magnetocrystalline anisotropy constant for α′-Fe-C is -0.5 × 106 erg/cm3 independent of the C content. The coercive force for the α′-Fe-C films with C content more than 4 at% is about 2 Oe. The α′-Fe-C films with 4-8 at% C are promising candidates for use as writing head material.
KW - Coercive force
KW - Magnetocrystalline anisotropy
KW - Saturation magnetization
UR - http://www.scopus.com/inward/record.url?scp=0036465331&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0036465331&partnerID=8YFLogxK
U2 - 10.1016/S0304-8853(01)00661-8
DO - 10.1016/S0304-8853(01)00661-8
M3 - Article
AN - SCOPUS:0036465331
SN - 0304-8853
VL - 239
SP - 479
EP - 483
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
IS - 1-3
ER -