Structural,optical and magnetic properties of chromium and manganese co-doped SnO2 nanoparticles |
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| Institution: | 1. Department of Physics, Sri Venkateswara University, Tirupati 517502, India;2. Department of Chemistry and Chemical Institute for Functional Materials, Pusan National University, Busan 609-735, Republic of Korea;3. Department of BIN Fusion Technology & Department of Polymer-Nano Science and Technology, Chonbuk National University, Jeonju, Jeonbuk, Republic of Korea;1. Department of Physics, Sri Venkateswara University, Tirupati 517 502, India;2. Department of Chemistry and Chemical Institute for Functional Materials, Pusan National University, Busan 609-735, Republic of Korea;3. Department of BIN Fusion Technology & Department of Polymer-Nano Science and Technology, Chonbuk National University, Korea;1. Department of Physics, Raghu Engineering College, Visakhapatnam, Andrapradesh 531162, India;2. Department of Physics, Sri Venkateswara University, Tirupati 517502, India;3. Department of Chemistry and Chemical Institute for Functional Materials, Pusan National University, Busan, 609735, Republic of Korea;4. Department of BIN Fusion Technology & Department of Polymer-Nano Science and Technology, Chonbuk National University, Jeonju, Jeonbuk, Republic of Korea;5. Department of Mechanical Engineering, University of California, Berkeley, USA;1. Department of Applied Physics, Aligarh Muslim University, Aligarh-202002, India;2. Center of Nanotechnology, King Abdulaziz University, Jeddah-21589, Saudi Arabia;1. Department of Physics, Sri Venkateswara University, Tirupati 517502, India;2. Department of Physics, Raghu Engineering College, Visakhapatnam, Andrapradesh 531162, India;3. Department of Chemistry and Chemical Institute for Functional Materials, Pusan National University, Busan 609735, Republic of Korea;4. Department of BIN Fusion Technology & Department of Polymer-Nano Science and Technology, Chonbuk National University, Jeonju, Jeonbuk, Republic of Korea;5. Department of Mechanical Engineering, University of California, Berkeley, USA |
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| Abstract: | The rutile phase Sn0.99-xMnxCr0.01O2 (x = 0.00, 0.01, 0.03, 0.05 and 0.07) nanoparticles were synthesized by facile chemical co-precipitation method using poly ethylene glycol (PEG) as a capping agent. The samples were characterized by EDAX to confirm the expected stoichiometry. The X-ray diffraction (XRD), transmission electron microscopy (TEM) and Fourier transform infrared (FTIR) spectroscopy analyses of these samples showed the formation of impurity free crystals with a single phase rutile type tetragonal crystal structure as that of (P42/mnm) of SnO2. Optical absorption spectra and corresponding Tauc's plots showed a redshift of the absorption edge in SnO2 after being co-doped with Cr and Mn. The samples were examined for its magnetic property using vibrating sample magnetometer which indicated that transition of magnetic signals from ferromagnetic to the paramagnetic nature with inclusion of Mn content in SnO2: Cr host matrix. The observed magnetic behavior is well supported with the bound magnetic polarons (BMPs) model. |
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| Keywords: | Nanoparticles Williamson–Hall plots Redshift Room temperature ferromagnetism |
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