Electrical resistivity of some RCo3 compounds

Plessis, P. de V. du; Germishuyse, T.

doi:10.1016/0304-8853(92)90613-s

Cited by 6 publications

(3 citation statements)

References 5 publications

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“…However, we find good agreement with the conductivity reported for DyCo 3 (3.3 × 10 5 S m −1 ), the stoichiometry of which is, however, different from our sample. [ 55 ] In the case of GdFe, our measured conductivity matches the reported value of 5.0 × 10 5 S m −1 . [ 56,57 ]…”

Section: Diagonal Conductivity σXxsupporting

confidence: 88%

Frequency‐Independent Terahertz Anomalous Hall Effect in DyCo₅, Co₃₂Fe₆₈, and Gd₂₇Fe₇₃ Thin Films from DC to 40 THz

et al. 2021

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The anomalous Hall effect (AHE) is a fundamental spintronic charge‐to‐charge‐current conversion phenomenon and closely related to spin‐to‐charge‐current conversion by the spin Hall effect. Future high‐speed spintronic devices will crucially rely on such conversion phenomena at terahertz (THz) frequencies. Here, it is revealed that the AHE remains operative from DC up to 40 THz with a flat frequency response in thin films of three technologically relevant magnetic materials: DyCo5, Co32Fe68, and Gd27Fe73. The frequency‐dependent conductivity‐tensor elements σxx and σyx are measured, and good agreement with DC measurements is found. The experimental findings are fully consistent with ab initio calculations of σyx for CoFe and highlight the role of the large Drude scattering rate (≈100 THz) of metal thin films, which smears out any sharp spectral features of the THz AHE. Finally, it is found that the intrinsic contribution to the THz AHE dominates over the extrinsic mechanisms for the Co32Fe68 sample. The results imply that the AHE and related effects such as the spin Hall effect are highly promising ingredients of future THz spintronic devices reliably operating from DC to 40 THz and beyond.

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Section: Diagonal Conductivity σXxsupporting

confidence: 88%

Frequency‐Independent Terahertz Anomalous Hall Effect in DyCo₅, Co₃₂Fe₆₈, and Gd₂₇Fe₇₃ Thin Films from DC to 40 THz

et al. 2021

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“…For each compound we have thus calculated K a at room temperature from the resistivity values assuming the Wiedemann-Franz law to be valid, as in [28]. For the room-temperature resistivity we have taken the values reported in the literature for polycrystalline bulk samples [31,32]. The values of the residual resistivity given in [32] for YCo 3 and CeCo 3 are abnormally high, probably because of the poor quality of the samples (as stressed by the authors).…”

Section: Thermal Conductivitymentioning

confidence: 99%

“…For the room-temperature resistivity we have taken the values reported in the literature for polycrystalline bulk samples [31,32]. The values of the residual resistivity given in [32] for YCo 3 and CeCo 3 are abnormally high, probably because of the poor quality of the samples (as stressed by the authors). Thus, we have taken the room-temperature values obtained after scaling the residual resistivities to the values of YCo 2 and CeCo 2 , by applying the Mathiessen rule, which is followed by intermetallic compounds [31].…”

Section: Thermal Conductivitymentioning

confidence: 99%

Amorphization of rare earth - cobalt intermetallic alloys by swift heavy-ion irradiation

Ghidini

Nozières

Givord

et al. 1996

J. Phys.: Condens. Matter

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(R = Y, Ce and Tm) and ( R= Y and Ce) intermetallic compounds have been irradiated for the first time by swift heavy-ion beams (U, Pb) of energy 1 - 5 GeV at GANIL (Caen, France). The compounds , and are found to be partially amorphized after irradiation. The amorphized volume fraction has been determined as a function of the ion beam fluence by x-ray diffraction and magnetic measurements. Results are found to be in agreement. By means of a phenomenological model, associating the phenomena of amorphization and recrystallization, the diameters of the latent tracks are estimated to lie in the range 2 - 3 nm. In contrast, no amorphization is observed in and . The different behaviours observed are well understood, in the framework of the thermal spike model, in terms of the different values of the electron - phonon coupling constant of the irradiated compounds.

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Spin-reorientation transition and electronic structure of TmCo3 compound

Kowałczyk

Szajek

Иванов

2002

Journal of Magnetism and Magnetic Materials

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Electrical resistivity of some RCo3 compounds

Cited by 6 publications

References 5 publications

Frequency‐Independent Terahertz Anomalous Hall Effect in DyCo₅, Co₃₂Fe₆₈, and Gd₂₇Fe₇₃ Thin Films from DC to 40 THz

Frequency‐Independent Terahertz Anomalous Hall Effect in DyCo₅, Co₃₂Fe₆₈, and Gd₂₇Fe₇₃ Thin Films from DC to 40 THz

Amorphization of rare earth - cobalt intermetallic alloys by swift heavy-ion irradiation

Spin-reorientation transition and electronic structure of TmCo3 compound

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Electrical resistivity of some RCo3 compounds

Cited by 6 publications

References 5 publications

Frequency‐Independent Terahertz Anomalous Hall Effect in DyCo5, Co32Fe68, and Gd27Fe73 Thin Films from DC to 40 THz

Frequency‐Independent Terahertz Anomalous Hall Effect in DyCo5, Co32Fe68, and Gd27Fe73 Thin Films from DC to 40 THz

Amorphization of rare earth - cobalt intermetallic alloys by swift heavy-ion irradiation

Spin-reorientation transition and electronic structure of TmCo3 compound

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Frequency‐Independent Terahertz Anomalous Hall Effect in DyCo₅, Co₃₂Fe₆₈, and Gd₂₇Fe₇₃ Thin Films from DC to 40 THz

Frequency‐Independent Terahertz Anomalous Hall Effect in DyCo₅, Co₃₂Fe₆₈, and Gd₂₇Fe₇₃ Thin Films from DC to 40 THz