MOHAMMED RASI U P

@sscollege.ac.in

ASSISTANT PROFESSOR & DEPARTMENT OF PHYSICS
SULLAMUSSALM SCIENCE COLLEGE, AREEKODE

MOHAMMED RASI U P


               Download Compact PDF  
https://researchid.co/rasicmr

RESEARCH INTERESTS

MAGNETISM. SPINTRONICS, THINFILMS, SILLENITES & MULTIFERROICS
8

Scopus Publications

139

Scholar Citations

7

Scholar h-index

5

Scholar i10-index

Scopus Publications

  • Study of local piezo and ferroelectric characteristics of PVDF + Bi25FeO40 composite nanodots using piezoforce microscopy
    M. S. Ravisankar, U. P. Mohammed Rasi
    Journal of Materials Science Materials in Electronics, 2024
  • Structural stability and magnetic properties of Mn2FeAl alloy with a β-Mn structure
    Shubhra Dash, A.V. Lukoyanov, Nancy, Durgamadhab Mishra, U.P. Mohammed Rasi, R.B. Gangineni, M. Vasundhara, Ajit K. Patra
    Journal of Magnetism and Magnetic Materials, 2020
  • Cavity enhancement in nonlinear absorption and photoluminescence of BaTiO3
    N.K. Shihab, Jitendra Nath Acharyya, U.P. Mohammed Rasi, R.B. Gangineni, G. Vijaya Prakash, D. Narayana Rao
    Optik, 2020
    We report the optical field enhanced nonlinear absorption and photoluminescence of one-dimensional photonic crystal with BaTiO3 as a defect, fabricated via RF sputtering technique. The homogeneity of layer thickness is confirmed through field emission scanning electron microscopy (FESEM). The cavity resonance mode is obtained at 532 nm and the quality factor of the microcaviy is found to be 48. Open aperture Z-scan and spectral measurement of microcavity show enhancement in nonlinear absorption and photoluminescence of BaTiO3 at 532 nm and 355 nm, respectively due to the strong field confinement around the defect layer. The experiments are in good agreement with the transfer matrix method simulations.
  • Nonlinear optical absorption switching behavior of BaTiO3 in asymmetric microcavity
    N.K. Shihab, Jitendra Nath Acharyya, U.P. Mohammed Rasi, R.B. Gangineni, P. Anantha Lakshmi, G. Vijaya Prakash, D. Narayana Rao
    Optical Materials, 2020
    In this paper, an asymmetric 1-D photonic microcavity with BaTiO3 as defect has been fabricated using RF magnetron sputtering technique. Open aperture Z-scan shows enhancement in nonlinear absorption of BaTiO3 due to strong field confinement around the defect layer. We further report the switching behavior in nonlinear absorption from reverse saturable absorption to saturable absorption in response to the angle tuning of the sample. The transfer matrix simulation results further support the cavity defect in asymmetric photonic crystal confine the photon and thereby enhancing nonlinear optical phenomena.
  • Coexistence of ferromagnetic and spin glass-like magnetic order in Bi10Co16O38 – Bi25FeO40 powder composite
    U.P. Mohammed Rasi, N.K. Shihab, S. Angappane, R.B. Gangineni
    Ceramics International, 2019
  • Influence of Thickness on Structural and Magnetic Properties of Co-rich Bi10Co16O38 Sillenite Thin Films
    U. P. Mohammed Rasi, J. Arout Chelvane, S. Angappane, P. Magudapathy, S. Amirthapandian, R. B. Gangineni
    Journal of Superconductivity and Novel Magnetism, 2018
  • High voltage generation from lead-free magnetoelectric coaxial nanotube arrays and their applications in nano energy harvesters
    C S Chitra Lekha, Ajith S Kumar, S Vivek, U P Mohammed Rasi, K Venkata Saravanan, K Nandakumar, Swapna S Nair
    Nanotechnology, 2017
    Harvesting energy from surrounding vibrations and developing self-powered portable devices for wireless and mobile electronics have recently become popular. Here the authors demonstrate the synthesis of piezoelectric energy harvesters based on nanotube arrays by a wet chemical route, which requires no sophisticated instruments. The energy harvester gives an output voltage of 400 mV. Harvesting energy from a sinusoidal magnetic field is another interesting phenomenon for which the authors fabricated a magnetoelectric energy harvester based on piezoelectric–magnetostrictive coaxial nanotube arrays. Piezoelectric K0.5Na0.5NbO3 (KNN) is fabricated as the shell and magnetostrictive CoFe2O4 (CFO) as the core of the composite coaxial nanotubes. The delivered voltages are as high as 300 mV at 500 Hz and at a weak ac magnetic field of 100 Oe. Further tailoring of the thickness of the piezoelectric and magnetic layers can enhance the output voltage by several orders. Easy, single-step wet chemical synthesis enhances the industrial upscaling potential of these nanotubes as energy harvesters. In view of the excellent properties reported here, the lead-free piezoelectric component (KNN) in this nanocomposite should be explored for eco-friendly piezoelectric as well as magnetoelectric power generators in nanoelectromechanical systems (NEMS).
  • Effect of pressure on dielectric properties of polyvinylidene fluoride (PVDF) polymer
    P. Muhammed Razi, U. P. Mohammed Rasi, R. B. Gangineni
    Aip Conference Proceedings, 2015
    Influence of pressure on the dielectric properties of Poly (vinylidene fluoride) (PVDF) has been investigated. The pressure is varied by applying a 5 Ton and 10 Ton pressure during pellet preparation. The broad band dielectric spectroscopy is utilized for understanding the dielectric constant disparity with respect to frequency and temperature. XRD and Raman spectroscopy are utilized to comprehend the structural characteristics of PVDF with respect to pressure. A relaxor type ferroelectric behavior is observed from the complex dielectric constant versus temperature measured at different frequencies. Further, the deviations in the dielectric constant versus temperatures are discussed with respect to the structural evolutions of the PVDF.

RECENT SCHOLAR PUBLICATIONS

  • Study of local piezo and ferroelectric characteristics of PVDF + Bi 25 FeO 40 composite nanodots using piezoforce microscopy
    MS Ravisankar, UPM Rasi
    Journal of Materials Science: Materials in Electronics 35 (4), 312 , 2024
    2024
    Citations: 7
  • Unveiling the magnetic and transport properties of La0. 5Sr0. 5Co1− xVxO3− δ (x= 0, 0.01, 0.02 and 0.1)
    B Poojitha, R Shukla, M Vasundhara, UPM Rasi, RB Gangineni, ...
    Journal of Magnetism and Magnetic Materials 530, 167851 , 2021
    2021
    Citations: 7
  • Structural stability and magnetic properties of Mn2FeAl alloy with a β-Mn structure
    S Dash, AV Lukoyanov, D Mishra, UPM Rasi, RB Gangineni, ...
    Journal of Magnetism and Magnetic Materials 513, 167205 , 2020
    2020
    Citations: 55
  • Cavity enhancement in nonlinear absorption and photoluminescence of BaTiO3
    NK Shihab, JN Acharyya, UPM Rasi, RB Gangineni, GV Prakash, DN Rao
    Optik 207, 163896 , 2020
    2020
    Citations: 15
  • Nonlinear optical absorption switching behavior of BaTiO< inf> 3</inf> in asymmetric microcavity
    NK Shihab, JN Acharyya, UP Rasi, RB Gangineni, PA Lakshmi, ...
    2020
  • Nonlinear optical absorption switching behavior of BaTiO3 in asymmetric microcavity
    NK Shihab, JN Acharyya, UPM Rasi, RB Gangineni, PA Lakshmi, ...
    Optical Materials 101, 109777 , 2020
    2020
    Citations: 17
  • Coexistence of ferromagnetic and spin glass-like magnetic order in Bi10Co16O38–Bi25FeO40 powder composite
    UPM Rasi, NK Shihab, S Angappane, RB Gangineni
    Ceramics International 45 (12), 15171-15177 , 2019
    2019
    Citations: 14
  • Influence of Thickness on Structural and Magnetic Properties of Co-rich Bi 10 Co 16 O 38 Sillenite Thin Films
    UPM Rasi, JA Chelvane, S Angappane, P Magudapathy, ...
    Journal of Superconductivity and Novel Magnetism 31 (5), 1623-1629 , 2018
    2018
    Citations: 3
  • High voltage generation from lead-free magnetoelectric coaxial nanotube arrays and their applications in nano energy harvesters
    CSC Lekha, AS Kumar, S Vivek, UPM Rasi, KV Saravanan, ...
    Nanotechnology 28 (5), 055402 , 2017
    2017
    Citations: 14
  • Synthesis of coaxial CoFe 2 O 4 - K 0.5 Na 0.5 NbO 3 nanotubes by sol-gel technique using inexpensive templates
    CS Chitralekha, M Rasi, PB Aravind, MR Anantharaman, SS Nair
    AIP Conference Proceedings 1665 (1), 140048 , 2015
    2015
    Citations: 6
  • Effect of pressure on dielectric properties of polyvinylidene fluoride (PVDF) polymer
    PM Razi, UPM Rasi, RB Gangineni
    AIP Conference Proceedings 1665 (1), 110049 , 2015
    2015
    Citations: 1

MOST CITED SCHOLAR PUBLICATIONS

  • Structural stability and magnetic properties of Mn2FeAl alloy with a β-Mn structure
    S Dash, AV Lukoyanov, D Mishra, UPM Rasi, RB Gangineni, ...
    Journal of Magnetism and Magnetic Materials 513, 167205 , 2020
    2020
    Citations: 55
  • Nonlinear optical absorption switching behavior of BaTiO3 in asymmetric microcavity
    NK Shihab, JN Acharyya, UPM Rasi, RB Gangineni, PA Lakshmi, ...
    Optical Materials 101, 109777 , 2020
    2020
    Citations: 17
  • Cavity enhancement in nonlinear absorption and photoluminescence of BaTiO3
    NK Shihab, JN Acharyya, UPM Rasi, RB Gangineni, GV Prakash, DN Rao
    Optik 207, 163896 , 2020
    2020
    Citations: 15
  • Coexistence of ferromagnetic and spin glass-like magnetic order in Bi10Co16O38–Bi25FeO40 powder composite
    UPM Rasi, NK Shihab, S Angappane, RB Gangineni
    Ceramics International 45 (12), 15171-15177 , 2019
    2019
    Citations: 14
  • High voltage generation from lead-free magnetoelectric coaxial nanotube arrays and their applications in nano energy harvesters
    CSC Lekha, AS Kumar, S Vivek, UPM Rasi, KV Saravanan, ...
    Nanotechnology 28 (5), 055402 , 2017
    2017
    Citations: 14
  • Study of local piezo and ferroelectric characteristics of PVDF + Bi 25 FeO 40 composite nanodots using piezoforce microscopy
    MS Ravisankar, UPM Rasi
    Journal of Materials Science: Materials in Electronics 35 (4), 312 , 2024
    2024
    Citations: 7
  • Unveiling the magnetic and transport properties of La0. 5Sr0. 5Co1− xVxO3− δ (x= 0, 0.01, 0.02 and 0.1)
    B Poojitha, R Shukla, M Vasundhara, UPM Rasi, RB Gangineni, ...
    Journal of Magnetism and Magnetic Materials 530, 167851 , 2021
    2021
    Citations: 7
  • Synthesis of coaxial CoFe 2 O 4 - K 0.5 Na 0.5 NbO 3 nanotubes by sol-gel technique using inexpensive templates
    CS Chitralekha, M Rasi, PB Aravind, MR Anantharaman, SS Nair
    AIP Conference Proceedings 1665 (1), 140048 , 2015
    2015
    Citations: 6
  • Influence of Thickness on Structural and Magnetic Properties of Co-rich Bi 10 Co 16 O 38 Sillenite Thin Films
    UPM Rasi, JA Chelvane, S Angappane, P Magudapathy, ...
    Journal of Superconductivity and Novel Magnetism 31 (5), 1623-1629 , 2018
    2018
    Citations: 3
  • Effect of pressure on dielectric properties of polyvinylidene fluoride (PVDF) polymer
    PM Razi, UPM Rasi, RB Gangineni
    AIP Conference Proceedings 1665 (1), 110049 , 2015
    2015
    Citations: 1
  • Nonlinear optical absorption switching behavior of BaTiO< inf> 3</inf> in asymmetric microcavity
    NK Shihab, JN Acharyya, UP Rasi, RB Gangineni, PA Lakshmi, ...
    2020