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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/034/05/1083-1087

    • Keywords

       

      Cu-doped ZnO; hydrothermal method; optical property; magnetic property.

    • Abstract

       

      We have investigated properties of the Cu-doped ZnO crystalline film synthesized by the hydrothermal method. X-ray diffraction and X-ray photoelectron spectroscopy results provide the evidence that Cu2+ is incorporated into the ZnO lattices. Photoluminescence spectrum of the rod arrays shows that the UV emission peak shifts a little to lower energy and its intensity decreased. There are another two emission peaks centred in blue and green regions because of the incorporation of Cu2+ ions. The rod arrays have exhibited room-temperature ferromagnetic behaviour with the remanence of 0.926 × 10-3 emu/cm3. We suggest that the exchange interaction between local spin-polarized electrons (such as the electrons of Cu2+ ions) and conductive electrons is the cause of room-temperature ferromagnetism.

    • Author Affiliations

       

      C H Xia1 C G Hu2 C H Hu1 Z Ping1 F Wang1

      1. Science College of Chongqing Jiaotong University, Chongqing 400074, People’s Republic of China
      2. Department of Applied Physics, Chongqing University, Chongqing 400044, People’s Republic of China

    • Dates

       
      Published
      August 2011
      Manuscript received
      23 October 2010
      Manuscript revised
      22 December 2010

  • Bulletin of Materials Science | News

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      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
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      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

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