Material Study of Co2CrAl Heusler Alloy Magnetic Thin Film and Co2CrAl/n-Si Schottky Junction Device

Rashmi Singh, Faizan Ahmad, Kashif Nazeer, Rachana Kumar, Naresh Kumar, Animesh K. Ojha, Sunil Singh Kushvaha, Pramod Kumar

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


The structural, optical, magnetic, and electrical properties of Co2CrAl Heusler alloy magnetic thin films grown on n-type silicon (100) substrate (n-Si) and glass substrate were studied. The films were deposited using DC magnetron sputtering. X-ray diffraction (XRD) analysis confirmed the polycrystalline nature of the films. The effect of grain size on transmittance was investigated. Magnetic measurements revealed the presence of magnetic ordering in the films. Partial densities of states (PDOS) of the Co2CrAl were calculated by density functional theory (DFT) methods using the Vienna Ab initio Simulation Package (VASP). Co2CrAl thin film deposited over a silicon substrate was investigated for I–V characteristics. The electrical behaviour confirmed the existence of a Co2CrAl/n-Si Schottky contact, which suggests a spin injection phenomenon from Co2CrAl to n-Si by tunnelling through the lowered Schottky barrier.

Original languageEnglish
Pages (from-to)3652-3658
Number of pages7
JournalJournal of Electronic Materials
Issue number6
StatePublished - 1 Jun 2020
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2020, The Minerals, Metals & Materials Society.


We would like to thank DST, Govt. of India for financial support. We would like to acknowledge CIR, MNNIT Allahabad for the experimental and characterization support. Special thanks to Professor K.G. Suresh from IIT Bombay, Mumbai (India), for helping us in proofreading the final version of the manuscript.

FundersFunder number
Department of Science and Technology, Ministry of Science and Technology, India
Indian Institute of Technology Bombay


    • CoCrAl Heusler alloy
    • Schottky junction
    • magnetic thin films
    • spin injection device
    • spintronics
    • tunnelling


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