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実, 高橋; 巌, 岡本; 俊二, 石尾; 照宣, 宮崎

doi:10.3379/jmsjmag.7.159

Cited by 6 publications

(1 citation statement)

References 9 publications

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“…Likewise, Sales et al [6] have shown its applicability as a thermoelectric material in refrigeration. It has been under study for decades due to its temperature-dependent magnetic and electrical properties [7][8][9][10][11][12][13][14][15]. Since its discovery FeSi has been a controversial material due to its unusual physical properties.…”

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Understanding the temperature- and pressure-dependent electronic properties of FeSi: DFT + DMFT study

Dutta¹,

Pandey²

2020

EPL

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Electronic structures of FeSi and Fe1.02Si0.98 under pressure (achieved through volume compression) have been investigated by using DFT+DMFT and KKR-CPA methods, respectively. The widening of band gap with increasing pressure suggests that the experimentally observed insulator-to-metal transition temperature should shift towards the higher temperature for FeSi. KKR-CPA calculations have shown the presence of impurity states in the gapped region which predicts the half-metallic nature. The closure of the gap (in one spin channel) with pressure increment appears to be responsible for the experimentally observed semiconductor-to-metal transition in Fe excess samples at a temperature below 50 K. Magnetic moments at Fe excess sites are found to be decreasing with increasing pressure from per Fe atom ( ) to per Fe atom ( ). Moreover, for FeSi the calculated local spin susceptibility has shown decreasing behavior with pressure rise similar to experimental result.

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confidence: 99%

Understanding the temperature- and pressure-dependent electronic properties of FeSi: DFT + DMFT study

Dutta¹,

Pandey²

2020

EPL

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Anomalous Behavior of Permeability Around the Curie Temperature in Amorphous Fe-Ni-Si-B Alloys

Hisatake

Miyazaki

Takahashi

et al. 1986

phys. stat. sol. (a)

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The temperature dependence of initial permeability μi is measured in the temperature range from 4.2 K to the Curie temperature for amorphous (Fe1‐xNix)77Si10B13 (x ≧ 0.8) alloys. Anormalous peaks (1 to 3 peaks) are observed in the μ‐T curves near the Curie temperature. The change in the peaks with increasing the driving magnetic field is examined for x = 0.8 and 0.9 alloys. Based on these results, the anomalous peaks in addition to the Hopkinson peak can be explained in terms of the natural magnetic resonance.

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6.1.6.14 Fe-Ni alloys

Kobe¹,

Ferchmin²

Liquid-Quenched Alloys

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Cited by 6 publications

References 9 publications

Understanding the temperature- and pressure-dependent electronic properties of FeSi: DFT + DMFT study

Understanding the temperature- and pressure-dependent electronic properties of FeSi: DFT + DMFT study

Anomalous Behavior of Permeability Around the Curie Temperature in Amorphous Fe-Ni-Si-B Alloys

6.1.6.14 Fe-Ni alloys

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