Akande, AARammutla, KEMoyo, TOsman, NSENkosi, SSJafta, CJMwakikunga, Bonex W2014-12-222014-12-222015-02Akande, A.A., Rammutla, K.E., Moyo, T., Osman, N.S.E., Nkosi, S., Jafta, C.J., and Mwakikunga, B.W., 2015. Magnetism variations and susceptibility hysteresis at the metal-insulator phase transition temperature of VO(sub2) in acomposite film containing vanadium and tungsten oxides. Journal of Magnetism and Magnetic Materials, Vol. 375, pp. 1–90304-8853http://ac.els-cdn.com/S0304885314008191/1-s2.0-S0304885314008191-main.pdf?_tid=5fd39126-74a6-11e4-9e73-00000aacb35e&acdnat=1416922045_0f0ad5e990bb3c66fbca8144ef9ad6edhttp://hdl.handle.net/10204/7818https://www.sciencedirect.com/science/article/pii/S0304885314008191https://doi.org/10.1016/j.jmmm.2014.08.099Copyright: 2014 Elsevier. This is a pre-print version. The definitive version of the work is published in the Journal of Magnetism and Magnetic Materials, Vol. 375, pp 1–9We report on the magnetic property of 0.67–WO3+0.33–VOx mixture film deposit on the corning glass substrate using the chemical sol–gel and atmospheric pressure chemical vapour deposition (APCVD) methods. The XRD and Raman spectroscopy confirm species of both materials, and the morphological studies with FIB-SEM and TEM reveal segregation of W and V atoms. XPS reveals that V4+ from VO2 forms only 11% of the film; V3+ in the form of V2O3 form 1% of the film, 21% is V5+ from V2O5 and 67% is given to W6+ from WO3. The analysis of the ESR data shows some sharp changes in the magnetism near the metal-to-insulator (MIT), which could be theoretically interpreted as the ordering or alignment of electron spins from net moment nature to parallel alignment of magnetic moment. The derivatives of magnetic susceptibility established the thermally induced magnetic property: two distinct transitions of 339 K for heating data and 338 K for cooling data for 151.2 mT field were obtained. Similar results were also obtained for 308.7 mT field, 336 Kfor heating data and 335 K for cooling data. VSM results confirm a paramagnetic phase with a small amount of magnetically ordered phase.enMagnetic susceptibilityMetal-to-Insulator TransitionParamagnetismTungsten oxideVanadium dioxideArticleAkande, A., Rammutla, K., Moyo, T., Osman, N., Nkosi, S., Jafta, C., & Mwakikunga, B. W. (2015). Magnetism variations and susceptibility hysteresis at the metal-insulator phase transition temperature of VO2 in a composite film containing vanadium and tungsten oxides. http://hdl.handle.net/10204/7818Akande, AA, KE Rammutla, T Moyo, NSE Osman, SS Nkosi, CJ Jafta, and Bonex W Mwakikunga "Magnetism variations and susceptibility hysteresis at the metal-insulator phase transition temperature of VO2 in a composite film containing vanadium and tungsten oxides." (2015) http://hdl.handle.net/10204/7818Akande A, Rammutla K, Moyo T, Osman N, Nkosi S, Jafta C, et al. Magnetism variations and susceptibility hysteresis at the metal-insulator phase transition temperature of VO2 in a composite film containing vanadium and tungsten oxides. 2015; http://hdl.handle.net/10204/7818.TY - Article AU - Akande, AA AU - Rammutla, KE AU - Moyo, T AU - Osman, NSE AU - Nkosi, SS AU - Jafta, CJ AU - Mwakikunga, Bonex W AB - We report on the magnetic property of 0.67–WO3+0.33–VOx mixture film deposit on the corning glass substrate using the chemical sol–gel and atmospheric pressure chemical vapour deposition (APCVD) methods. The XRD and Raman spectroscopy confirm species of both materials, and the morphological studies with FIB-SEM and TEM reveal segregation of W and V atoms. XPS reveals that V4+ from VO2 forms only 11% of the film; V3+ in the form of V2O3 form 1% of the film, 21% is V5+ from V2O5 and 67% is given to W6+ from WO3. The analysis of the ESR data shows some sharp changes in the magnetism near the metal-to-insulator (MIT), which could be theoretically interpreted as the ordering or alignment of electron spins from net moment nature to parallel alignment of magnetic moment. The derivatives of magnetic susceptibility established the thermally induced magnetic property: two distinct transitions of 339 K for heating data and 338 K for cooling data for 151.2 mT field were obtained. Similar results were also obtained for 308.7 mT field, 336 Kfor heating data and 335 K for cooling data. VSM results confirm a paramagnetic phase with a small amount of magnetically ordered phase. DA - 2015-02 DB - ResearchSpace DP - CSIR KW - Magnetic susceptibility KW - Metal-to-Insulator Transition KW - Paramagnetism KW - Tungsten oxide KW - Vanadium dioxide LK - https://researchspace.csir.co.za PY - 2015 SM - 0304-8853 T1 - Magnetism variations and susceptibility hysteresis at the metal-insulator phase transition temperature of VO2 in a composite film containing vanadium and tungsten oxides TI - Magnetism variations and susceptibility hysteresis at the metal-insulator phase transition temperature of VO2 in a composite film containing vanadium and tungsten oxides UR - http://hdl.handle.net/10204/7818 ER -