Magnetic properties of low temperature phase MnBi of island structure | Zendy

Takahiro Suwa | Zendy; Yoshitomo Tanaka | Zendy; G. J. Mankey | Zendy; Rainer Schad | Zendy; T. Suzuki | Zendy

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Magnetic properties of low temperature phase MnBi of island structure

Author(s) -

Takahiro Suwa,

Yoshitomo Tanaka,

G. J. Mankey,

Rainer Schad,

T. Suzuki

Publication year - 2016

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4943148

Subject(s) - materials science , atmospheric temperature range , lattice constant , saturation (graph theory) , condensed matter physics , wetting , anisotropy , anisotropy energy , range (aeronautics) , magnetization , magnetic anisotropy , composite material , magnetic field , thermodynamics , optics , diffraction , physics , mathematics , combinatorics , quantum mechanics

The magnetic and structural properties of island-structured LTP MnBi fabricated onto MgO single crystal substrates are discussed. The size and height of the “Volmer-Weber” type islands vary from place to place but are averagely a few microns and sub-microns, respectively. From the wetting angle (40 ∼ 60°) of those islands, the surface energy ΥMnBi of LTP MnBi is found to be 0.5∼0.8 J/m2. Those MnBi islands possesses the magnetic anisotropy constant Ku and saturation magnetization Ms close to those for bulk over a temperature range of 5 to 400 K. There seems to be a correlation between Ku and lattice constant c measured at 300K. The Ku is found to be inversely proportional to Ms5 over the temperature range from 5 K to 400 K, as compared to the Ms8 dependence for those fabricated onto fused silica glass substrates

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