Electronic structure, exchange interactions, and Curie temperature of FeCo

MacLaren, J. M.; Schulthess, T. C.; Butler, W. H.; Sutton, R.B.; McHenry, Michael E.

doi:10.1063/1.370036

Cited by 190 publications

(106 citation statements)

References 12 publications

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“…The addition of Co produces an increase of the saturation polarization in this compositional range. It is well known that alloying Co with Fe induces an increase of the polarization up to a composition of about 35 % of Co in binary FeCo crystalline alloys [31].…”

Section: Magnetic Characterizationmentioning

confidence: 99%

Effect of minor Co additions on the crystallization and magnetic properties of Fe(Co)NbBCu alloys

Torrens‐Serra

Bruna

Roth

et al. 2010

Journal of Alloys and Compounds

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The effect of partial replacement of Fe by Co (up to 8 %) on thermal stability, structure and magnetic properties of FeNbBCu alloys has been explored in this paper. The results indicate that Co reduces the stability against crystallization of the amorphous alloy and stabilizes the nanocrystalline phase prior to the further precipitation of metastable boride phases.Transmission Mössbauer spectroscopy reveals differences in the hyperfine interactions between the alloys: Co raises the mean hyperfine field of the amorphous state and differences in the nanocrystalline bcc-Fe(Co) environments between the alloys occur depending on the amount of Co near-neighbours in the bcc-Fe structure. The addition of Co has also a notable effect on the magnetic properties of both amorphous and nanocrystalline alloys increasing the Curie temperature, which shows a linear dependence with the Co composition, and the saturation polarization.

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Section: Magnetic Characterizationmentioning

confidence: 99%

Effect of minor Co additions on the crystallization and magnetic properties of Fe(Co)NbBCu alloys

Torrens‐Serra

Bruna

Roth

et al. 2010

Journal of Alloys and Compounds

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“…In this section, the T c for LTP MnBi was calculated using the following mean field approximation (MFA) expression [16]:…”

Section: Curie Temperaturementioning

confidence: 99%

Electronic Structure and Maximum Energy Product of MnBi

Park

Hong

Lee

et al. 2014

Metals

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Abstract:We have performed first-principles calculations to obtain magnetic moment, magnetocrystalline anisotropy energy (MAE), i.e., the magnetic crystalline anisotropy constant (K), and the Curie temperature (T c ) of low temperature phase (LTP) MnBi and also estimated the maximum energy product (BH) max at elevated temperatures. The full-potential linearized augmented plane wave (FPLAPW) method, based on density functional theory (DFT) within the local spin density approximation (LSDA), was used to calculate the electronic structure of LPM MnBi. The respectively. The (BH) max at the elevated temperatures was estimated by combining experimental coercivity (H ci ) and the temperature dependence of magnetization (M s (T)). The (BH) max is 17.7 MGOe at 300 K, which is in good agreement with the experimental result for directionally-solidified LTP MnBi (17 MGOe). In addition, a study of electron density maps and the lattice constant c/a ratio dependence of the magnetic moment suggested that doping of a third element into interstitial sites of LTP MnBi can increase the M s . OPEN ACCESSMetals 2014, 4 456

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“…Изменение химического состава приводит к изменению парциальных вкладов в плотность состояний. При этом изменяют-ся, согласно выражениям (64), (53), величины локализованных магнитных моментов и значение плотности состояний на уровне Ферми, лежащем в области кулоновской квазищели.…”

Section: концентрационная зависимость электросопротивленияunclassified