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Boson peak in the specific heat of metallic glasses (CROSBI ID 680202)

Prilog sa skupa u zborniku | sažetak izlaganja sa skupa

Starešinić, Damir ; Salčinović Fetić, Amra ; Remenyi, Georgyi ; Biljaković, Katica ; Dominko, Damir ; Sulejmanovć, Suada ; Figueroa, I.A. ; Babić, Emil Boson peak in the specific heat of metallic glasses // Book of Abstracts / Biliškov, Nikola (ur.). Zagreb: Institut Ruđer Bošković, 2019. str. 109-109

Podaci o odgovornosti

Starešinić, Damir ; Salčinović Fetić, Amra ; Remenyi, Georgyi ; Biljaković, Katica ; Dominko, Damir ; Sulejmanovć, Suada ; Figueroa, I.A. ; Babić, Emil

engleski

Boson peak in the specific heat of metallic glasses

We have studied low temperature specific heat (LTSH) in different glass-forming metallic alloys: binary marginal glasses ZrNi [1], bulk metallic glasses CuHfTi [2] and high entropy metallic glasses TiZrNbCuNi(Co) [3]. The results concerning so-called boson peak (BP) contribution to the density of vibrational states in excess to the Debye contribution are quite varied between these alloys. While Zr77Ni23 does not show BP, in Cu55Hf45- xTix its position and amplitude vary monotonously with the Ti content, Fig. 1. In TiZrNbCuNi(Co) alloys with multiple principle elements, the position of BP scales roughly with the Debye temperature, while its amplitude shows more complex behaviour. We discuss these results in respect of the intrinsic differences between these alloys [4] and in the view of different theories of BP, see e.g. [5, 6]. [1] A. Salčinović Fetić et al., Phys. Rev. B 96 (2017) 064201. [2] G. Remenyi et al., Appl. Phys. Lett. 104 (2014) 171906. [3] E. Babić et al., J. Mater. Res. 33 (2018) 3170. [4] W. H. wang, JOM 66 (2014) 2076. [5] T. Brink et al., Phys. Rev. B 94 (2016) 224203. [6] M. Baggioli and A. Zaccone, Phys. Rev. B 122 (2019) 145501.

Metalna stakla, Toplinski kapacitet, Bozonski vršak

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Podaci o prilogu

109-109.

2019.

objavljeno

Podaci o matičnoj publikaciji

Book of Abstracts

Biliškov, Nikola

Zagreb: Institut Ruđer Bošković

978-953-7941-32-1

Podaci o skupu

Solid State Science and Research Meeting

poster

27.06.2019-29.06.2019

Zagreb, Hrvatska

Povezanost rada

Fizika