Values of Cauchy pressure (C P = C 12 – C 44) derived and these compounds Co 2VZ (Z= As, B, In, Sb) shows metallic nature.įr. Pugh’s ratio B/G is greater than 1.75 for Co 2VZ (Z= B, In, Sb) compounds showing ductile in nature, but B/G value for Co 2VAs is less than 1.75, so this compound is brittle in nature. Absorption and reflection are inversely proportional to each other at same instant of time. Absorption coefficient and electron energy-loss function values are increases as we increase the value of energy. Optical properties of these compounds such as reflectivity, refractive index, excitation coefficient, absorption coefficient, optical conductivity and electron energy loss have been analyzed. Magnetic moment calculated by these compounds Co 2VZ (Z= As, B, In, Sb) are 3.64 and 3.76, 2.00 and 1.97, 1.99 and 1.99, 3.96 and 3.82µ B in WIEN2k and ATK-VNL simulation codes respectively. All these compounds shows zero band gaps in majority spin channel in both computational codes and in minority-spin conduction band or valence band crosses the Fermi level. One is full potential linearized augmented plane wave (FP-LAPW) method as implemented in WIEN2k and second one is pseudo potential method as implemented in Atomistic Tool Kit-Virtual NanoLab (ATK-VNL). Here in, we have investigated electronic, optical, elastic and magnetic properties of Co 2VZ (Z= As, B, In, Sb) full Heusler compounds by using two different computational methods.
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