The Additional Magnetic Anisotropy Induced by Magnetic Anneal in Ferromagnetic Face-Centered Cubic Solid Solutions : Part. II. Crystal Orientation Dependence of the Induced Magnetic Anisotropy in Face-Centered Cubic Nickel-Cobalt and Nickel-Iron Alloys

スポンサーリンク

概要

• 論文の詳細を見る

• The induced uniaxial ferromagnetic anisotropy as a function of the crystal orientation has been measured, using a torque magnetometer, with magnetically annealed (110) disc single crystals of 12 and 20 %Co-Ni and 17 and 46 %Fe-Ni alloys. It has been found that the crystal orientation dependence of the induced uniaxial ferromagnetic anisotropy energy, E_u, is expressed by the formula E_u=-K(〓α_i^2β_i^2+k〓α_iα_jβ_iβ_j), where K is a positive constant, k a numerical factor, and α_i's and β_i's (i=1, 2, 3) the direction cosines of magnetization vectors during the torque measurement and during magnetic annealing, respectively. The factor k is 2〜3 except for Ni-Fe alloys nearby Ni_3Fe, being smaller than 4 as expected from the directional order theory for face-centered cubic alloys. This difference may partly be due to the fact that the contribution from the second neighbor atoms is neglected in the theory, and rather large values of k for Ni-Fe alloys nearby Ni_3Fe may be due to the presence of superlattice.

• 東北大学の論文

著者

• Aoyagi Keizo

  (now)the Electrical Communication Laboratory Nippon Telegraph And Telephone Public Corporation

関連論文

• The Additional Magnetic Anisotropy Induced by Magnetic Anneal in Ferromagnetic Face-Centered Cubic Solid Solutions : Part I. Dependence of the Induced Magnetic Anisotropy on the Temperature and Duration of Magnetic Anneal, on the Measuring Temperature, an
• Orientation Dependence of the Uniaxial Ferromagnetic Anisotropy Induced by Magnetic Annealing in 20% Co-Ni Single Crystals
• Ferromagnetic Domain Structure as Affected by the Uniaxial Anisotropy Induced in a 40 Percent Co-Ni Single Crystal
• The Additional Magnetic Anisotropy Induced by Magnetic Anneal in Ferromagnetic Face-Centered Cubic Solid Solutions : Part. II. Crystal Orientation Dependence of the Induced Magnetic Anisotropy in Face-Centered Cubic Nickel-Cobalt and Nickel-Iron Alloys

スポンサーリンク