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Browsing by Author "M, Vasundhara"

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Electronic Structure, Optical, and Magnetic Properties of Mn100-xGex (x=20, 25, and 30) Alloys Near Tetragonal-Orthorhombic Structural Phase Transition

S, Dash; A K, Patra; M, Vasundhara; A V, Lukoyanov; E D, Baglasov; Y V, Knyazev; Y I, Kuz'min (Wiley, 2019-07-28)

Electronic, structural, optical, and magnetic properties of the Mn100−xGex alloys for x = 20, 25, and 30 are investigated near a tetragonal–orthorhombic structural phase transition. In the electronic structure calculations, ...
Impression of Magnetic Clusters, Critical Behavior and Magnetocaloric Effect in Fe3al Alloys

S, Dash; A V, Lukoyanov; Y V, Knyazev; Y I, Kuz'min; E D, Baglasov; B, Weise; P, Kumar; M, Vasundhara; A K, Patra (Royal Society of Chemistry, 2019-04-29)

Herein, we report unusual magnetic behavior in arc melted bulk stoichiometric Fe3Al alloy with a D03 structure. The temperature variation in the magnetization measurements revealed two transitions, i.e. one at ∼763 K and ...
Observation of Enhanced Magnetic Entropy Change Near Room Temperature in Sr-site Deficient La0.67sr0.33mno3 Manganite

B, Arun; V R, Akshay; M, Vasundhara (Royal Society of Chemistry, 2019-07-24)

The effect of Sr-site deficiency on the structural, magnetic and magnetic entropy change of La0.67Sr0.33−yMnO3−δ (y = 0.18 and 0.27) compounds was investigated. The compounds were prepared by the conventional solid-state ...
Significant Reduction in the Optical Band-gap and Defect Assisted Magnetic Response in Fe-doped Anatase Tio2 Nanocrystals as Dilute Magnetic Semiconductors

V R, Akshay; B, Arun; G, Mandal; A, Chanda; M, Vasundhara (Royal Society of Chemistry, 2019-03-12)

Here, we have employed a low-temperature sol-gel route for developing functional semiconducting, Fe-doped anatase TiO2 nanocrystals. Detailed investigation of X-ray powder diffraction patterns confirms the anatase phase ...
Visible Range Optical Absorption, Urbach Energy Estimation and Paramagnetic Response in Cr-doped Tio2 Nanocrystals Derived by a Sol-gel Method

V R, Akshay; B, Arun; G, Mandal; M, Vasundhara (Royal Society of Chemistry, 2019-05-20)

We have carried out a detailed study of the morphological, structural, optical and magnetic properties of Cr doped TiO2 nanocrystals with doping concentrations varying from 3 to 12 atomic weight%. The results obtained from ...

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