Abstract：
:Several cobalt-based Heusler alloys have been predicted to exhibit Weyl Semimetal behavior due to time reversal symmetry breaking. Co2TiGe is one of the predicted ferromagnetic Weyl semimetals. In this work, we report weak localization and small anomalous Hall conductivity in half-metallic Co2TiGe thin films grown by molecular beam epitaxy. The longitudinal resistivity shows semimetallic behavior. Elaborate analysis of longitudinal magnetoconductance shows the presence of a weak localization quantum correction present even up to room temperature and reduction in dephasing length at lower temperature. Negative longitudinal magnetoresistance is observed from 5 to 300 K, but at 300 K magnetoresistance becomes positive above 0.5 T magnetic field. The anomalous Hall effect has been investigated in these thin films. The measured anomalous Hall conductivity decreases with increasing temperature, and a small anomalous Hall conductivity has been measured at various temperatures which may be arising due to both intrinsic and extrinsic mechanisms.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Dulal RP,Dahal BR,Forbes A,Bhattarai N,Pegg IL,Philip Jdoi
10.1038/s41598-019-39037-0subject
Has Abstractpub_date
2019-03-04 00:00:00pages
3342issue
1issn
2045-2322pii
10.1038/s41598-019-39037-0journal_volume
9pub_type
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journal_title：Scientific reports
pub_type： 杂志文章
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pub_type： 杂志文章
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pub_type： 杂志文章,meta分析
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pub_type： 杂志文章,meta分析
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更新日期：2015-07-22 00:00:00
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pub_type： 杂志文章
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pub_type： 已发布勘误
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