Vibrational dynamics of Zr67Ni33 amorphous alloy

Vibrational dynamics of Zr-based bulk metallic glasses

“…The first zero for V(r = r 0 ) due to all the screenings occurs at r 0 % 3:8 au. It is seen that the well depth of the presently computed potentials moves toward the left and is found to be in qualitative agreement with the available pair potential [11,17]. The WH form of the pair potentials of Zr 83 Ni 17 glass have been computed to find the atomic interactions and are displayed in Fig.…”

“…The d-electron contributions to the pair potential are expressed in terms of the number of d-electron Z d , the dstate radii r d and the nearest-neighbour coordination number N as follows [1][2][3][4][5][6][7][8][9][10][11][12]22]:…”

“…The mathematical expressions of υ L and υ T are given in earlier papers [1][2][3][4][5][6][7][8][9][10][11][12][13]18,19]. In the long-wavelength limit of the frequency spectrum, transverse and longitudinal sound velocities υ L and υ T are computed.…”

“…Only recently has there been an explosion of interest in these studies, as more promising materials are produced in the amorphous form. The range of applications of metallic glasses is vast and extends from the common window glass to high capacity storage media for digital devices [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17].…”

“…The theoretical calculations of phonon dispersion curves (PDC) of Zr 67 Ni 33 glass were studied by Gupta et al [11] for the first time. They adopted the Hubbard-Beeby (HB) [18] and Bhatia-Singh (BS) [19] approaches in their study and compared the results with MD outcomes of Aihara et al [14] and found their results to be in good agreement with the reported experimental data of Aihara et al [14] using different temperatures.…”