Optical constants of single-crystalline Ni(100) from 77 to 770 K from ellipsometry measurements

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F22%3A00126402" target="_blank" >RIV/00216224:14310/22:00126402 - isvavai.cz</a>

Výsledek na webu

<a href="https://avs.scitation.org/doi/10.1116/6.0001763" target="_blank" >https://avs.scitation.org/doi/10.1116/6.0001763</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1116/6.0001763" target="_blank" >10.1116/6.0001763</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Optical constants of single-crystalline Ni(100) from 77 to 770 K from ellipsometry measurements

Popis výsledku v původním jazyce

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 ????3↓→????2↓ transitions, which accounts for the decrease of the magnitude of the peak and its constant energy.

Název v anglickém jazyce

Optical constants of single-crystalline Ni(100) from 77 to 770 K from ellipsometry measurements

Popis výsledku anglicky

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 ????3↓→????2↓ transitions, which accounts for the decrease of the magnitude of the peak and its constant energy.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Vacuum Science and Technology A

ISSN

0734-2101

e-ISSN

1520-8559

Svazek periodika

40

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

1-10

Kód UT WoS článku

000783467500001

EID výsledku v databázi Scopus

2-s2.0-85127885192