Preparation and soft magnetic properties of epitaxial Fe–Si(111) monolayer films and Fe–Si(111)/Cr(111) multilayer films

Yaegashi, Seiji; Kurihara, T.; Satoh, Kazunori

doi:10.1063/1.364365

Cited by 13 publications

(7 citation statements)

References 11 publications

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“…Up to date, various methods, such as magnetic hysteresis loop measurement, torque measurement17, ferromagnetic resonance (FMR)7, rotational magneto-optic Kerr effect (ROT-MOKE)18, and magnetic transverse biased initial inverse susceptibility and torque (TBIIST)19, have been developed to determine the magnetic anisotropy constants. Since the coherent domain rotation magnetization reversal for ultrathin film is not always occurred, especially when the applied field is lower than saturation field, the detailed information regarding the magnetic anisotropy cannot be distinguished precisely from the magnetization hysteresis loops.…”

mentioning

confidence: 99%

Determination of magnetic anisotropy constants in Fe ultrathin film on vicinal Si(111) by anisotropic magnetoresistance

et al. 2013

Sci Rep

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The epitaxial growth of ultrathin Fe film on Si(111) surface provides an excellent opportunity to investigate the contribution of magnetic anisotropy to magnetic behavior. Here, we present the anisotropic magnetoresistance (AMR) effect of Fe single crystal film on vicinal Si(111) substrate with atomically flat ultrathin p(2 × 2) iron silicide as buffer layer. Owing to the tiny misorientation from Fe(111) plane, the symmetry of magnetocrystalline anisotropy energy changes from the six-fold to a superposition of six-fold, four-fold and a weakly uniaxial contribution. Furthermore, the magnitudes of various magnetic anisotropy constants were derived from torque curves on the basis of AMR results. Our work suggests that AMR measurements can be employed to figure out precisely the contributions of various magnetic anisotropy constants.

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confidence: 99%

Determination of magnetic anisotropy constants in Fe ultrathin film on vicinal Si(111) by anisotropic magnetoresistance

et al. 2013

Sci Rep

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“…To date, various methods, such as magnetic hysteresis loop measurement, torque measurement, [49] ferromagnetic resonance (FMR), [23] rotational magneto-optic Kerr effect (ROT-MOKE), [50] and magnetic transverse biased initial in-verse susceptibility and torque (TBIIST), [51] have been developed to determine the magnetic anisotropy constants. Since the coherent domain rotation magnetization reversal for ultrathin film does not always occur, especially when the applied field is lower than the saturation field, the detailed information regarding the magnetic anisotropy cannot be distinguished precisely from the magnetization hysteresis loops.…”

Section: Determination Of Magnetic Anisotropy By Magnetotransport Met...mentioning

confidence: 99%

Manipulating magnetic anisotropy and ultrafast spin dynamics of magnetic nanostructures

Cheng

Zhang

et al. 2015

Chinese Phys. B

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We present our extensive research into magnetic anisotropy. We tuned the terrace width of Si(111) substrate by a novel method: varying the direction of heating current and consequently manipulating the magnetic anisotropy of magnetic structures on the stepped substrate by decorating its atomic steps. Laser-induced ultrafast demagnetization of a CoFeB/MgO/CoFeB magnetic tunneling junction was explored by the time-resolved magneto-optical Kerr effect (TR-MOKE) for both the parallel state (P state) and the antiparallel state (AP state) of the magnetizations between two magnetic layers. It was observed that the demagnetization time is shorter and the magnitude of demagnetization is larger in the AP state than those in the P state. These behaviors are attributed to the ultrafast spin transfer between two CoFeB layers via the tunneling of hot electrons through the MgO barrier. Our observation indicates that ultrafast demagnetization can be engineered by the hot electron tunneling current. This opens the door to manipulate the ultrafast spin current in magnetic tunneling junctions. Furthermore, an all-optical TR-MOKE technique provides the flexibility for exploring the nonlinear magnetization dynamics in ferromagnetic materials, especially with metallic materials.

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“…Compared with permalloy, FeSi alloys exhibited a higher saturation magnetization, strongly depending on the chemical composition [ 17 ]. The soft magnetic properties of FeSi alloys deteriorate with increasing thickness similar to permalloy [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Ta Interlayers on Texture and Magnetic Properties of FeSi Films with Micrometer Thickness

Zhang

Bao

et al. 2022

Materials

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Magnetized soft ferromagnetic films with micrometer thickness were studied. A FeSi film, with a total thickness of 2000 nm, separated by 10 nm-thick Ta interlayers, was fabricated using the direct-current magnetron sputtering technique. The thickness of each FeSi layer between adjacent Ta layers was 100 nm. Hysteresis loop measurement was used to characterize the magnetic properties of the layer. X-ray diffraction patterns and high-resolution transmission electron microscopy were used to characterize its texture. The experimental results showed that the FeSi film separated by Ta interlayers exhibited a lower saturation magnetization and a higher coercivity than those of the 1140 nm-thick FeSi film. The insertion of Ta interlayers resulted in the disappearance of the crystal plane of FeSi (221), and better texture of the crystal plane of FeSi (210). The FeSi film exhibited a crystal plane of FeSi (210) with a bcc crystalline structure. The Ta interlayers were partially amorphous, exhibiting crystal plane of Ta (002) and TaSi2 (310). The matching of magnetic properties between interlayers and soft magnetic layers played an important role in maintaining its soft magnetic properties.

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Preparation and soft magnetic properties of epitaxial Fe–Si(111) monolayer films and Fe–Si(111)/Cr(111) multilayer films

Cited by 13 publications

References 11 publications

Determination of magnetic anisotropy constants in Fe ultrathin film on vicinal Si(111) by anisotropic magnetoresistance

Determination of magnetic anisotropy constants in Fe ultrathin film on vicinal Si(111) by anisotropic magnetoresistance

Manipulating magnetic anisotropy and ultrafast spin dynamics of magnetic nanostructures

Effect of Ta Interlayers on Texture and Magnetic Properties of FeSi Films with Micrometer Thickness

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