Вплив температури на магнiторезистивнi властивостi структурно несуцiльних плiвок Fe та Co

Magnetoresistive properties of ultrathin Fe and Co films with effective thicknesses d =3÷30 nm are studied in a temperature interval of (150–700) K. For films with d =3÷10 nm, the electrical conductivity is found to be thermally activated and the tunnel magnetoresistance effect is revealed. A decrea...

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Збережено в:
Бібліографічні деталі
Дата:2018
Автори: Chornous, A. M., Shkurdoda, Yu. O., Loboda, V. B., Kolomiets, V. M.
Формат: Стаття
Мова:English
Опубліковано: Publishing house "Academperiodika" 2018
Теми:
Онлайн доступ:https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2018684
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Назва журналу:Ukrainian Journal of Physics

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Ukrainian Journal of Physics
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Резюме:Magnetoresistive properties of ultrathin Fe and Co films with effective thicknesses d =3÷30 nm are studied in a temperature interval of (150–700) K. For films with d =3÷10 nm, the electrical conductivity is found to be thermally activated and the tunnel magnetoresistance effect is revealed. A decrease of the temperature down to 150 K in measurements on as-condensed films is found to result in the appearance of the magnetoresistive hysteresis and a reduction of the tunnel magnetoresistance (TMR) in a thickness interval of 10–15 nm. The maximum TMR value in the fields up to 0.7 T amounted to 1% for the as-condensed Fe films with an effective thickness of 17 nm and the Fe films with an effective thickness of 8 nm annealed at a temperature of 520 K.