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Increase in magnetoresistivity in Ba2CoS3via Zn2+/Co2+ substitution

Abstract : We report an increase of negative magnetoresistivity from 1.7% to 9% in the Ba2Co0.5Zn0.5S3 series (0 ≤x≤ 0.5), derived from Zn2+/Co2+ substitution in Ba2CoS3; Zn2+ substitution destroys the one-dimensional antiferromagnetic ordering typical of Ba2CoS3, in favour of a paramagnetic behaviour, and considerably increases the value of the resistivity, and to the best of our knowledge Ba2Co0.5Zn0.5S3 shows the most negative magnetoresistivity among the one-dimensional sulfides (MR ∼ 9%).
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https://hal-normandie-univ.archives-ouvertes.fr/hal-02264234
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Submitted on : Tuesday, August 6, 2019 - 2:58:32 PM
Last modification on : Thursday, December 12, 2019 - 1:54:02 PM

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Mark Harrison, Vincent Hardy, Antoine Maignan, M. Grazia Francesconi. Increase in magnetoresistivity in Ba2CoS3via Zn2+/Co2+ substitution. Chemical Communications, Royal Society of Chemistry, 2009, pp.2214. ⟨10.1039/b817363j⟩. ⟨hal-02264234⟩

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