ABADIZAMAN, Farzin, Jaden LOVE a Stefan ZOLLNER. Optical constants of single-crystalline Ni(100) from 77 to 770 K from ellipsometry measurements. Journal of Vacuum Science and Technology A. AVS Science and Technology Society, 2022, roč. 40, č. 3, s. 1-10. ISSN 0734-2101. Dostupné z: https://dx.doi.org/10.1116/6.0001763.
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Základní údaje
Originální název Optical constants of single-crystalline Ni(100) from 77 to 770 K from ellipsometry measurements
Autoři ABADIZAMAN, Farzin (364 Írán, garant, domácí), Jaden LOVE a Stefan ZOLLNER.
Vydání Journal of Vacuum Science and Technology A, AVS Science and Technology Society, 2022, 0734-2101.
Další údaje
Originální jazyk angličtina
Typ výsledku Článek v odborném periodiku
Obor 10302 Condensed matter physics
Stát vydavatele Spojené státy
Utajení není předmětem státního či obchodního tajemství
WWW URL
Impakt faktor Impact factor: 2.900
Kód RIV RIV/00216224:14310/22:00126402
Organizační jednotka Přírodovědecká fakulta
Doi http://dx.doi.org/10.1116/6.0001763
UT WoS 000783467500001
Klíčová slova anglicky Magnons; Electrical conductivity; Transition metals; Phonons; Optical constants; Optical metrology; Phase transitions; Electronic band structure
Štítky rivok
Příznaky Mezinárodní význam, Recenzováno
Změnil Změnila: Mgr. Marie Šípková, DiS., učo 437722. Změněno: 10. 8. 2022 10:23.
Anotace
Ellipsometry measurements were taken on single-crystalline Ni(100) at various temperatures between 77 and 770 K. DC conductivity and resistivity are extracted from the model optical constants and their temperature dependence is discussed. The authors find only qualitative agreement in the general trend of the resistivity measured by ellipsometry and electrical measurements. The temperature dependence of the main absorption peak at 4.8 eV indicates that the interband transitions are scattered by magnons with an effective energy of about 53 meV. The width of the main absorption peak reduces by 0.38 eV as the temperature rises, which is interpreted as the ferromagnetic exchange energy at the L-point. The small absorption peak at 1.5 eV is prominent only in the ferromagnetic phase and almost disappears in the paramagnetic phase. This peculiarity is explained by assigning the peak to 𝐾3↓→𝐾2↓ transitions, which accounts for the decrease of the magnitude of the peak and its constant energy.
VytisknoutZobrazeno: 7. 9. 2024 17:42