Effect of element doping and substitution on the electronic structure and macroscopic magnetic properties of SmFe12 -based compounds

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00555087" target="_blank" >RIV/68378271:_____/22:00555087 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1103/PhysRevB.105.014402" target="_blank" >https://doi.org/10.1103/PhysRevB.105.014402</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevB.105.014402" target="_blank" >10.1103/PhysRevB.105.014402</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of element doping and substitution on the electronic structure and macroscopic magnetic properties of SmFe12 -based compounds

Popis výsledku v původním jazyce

The mechanisms underlying the enhancement of magnetic anisotropies (MAs) of Sm ions, owing to valence electrons at the Sm site are clarified using a detailed analysis of crystal fields (CF). In order to investigate the finite-temperature magnetic properties, we developed an effective spin model for SmFe12X (X=H, B, C, and N) and SmFe11M (M=Ti, V, and Co), where the magnetic moments, CF parameters, and exchange fields were determined by first-principle calculations. Using this model, the MA constants and magnetization curves at finite temperatures were investigated using a recently introduced analytical method [Yoshioka, Tsuchiura, and Novák, Phys. Rev. B 102, 184410 (2020)].The calculated temperature dependence of K1(T) and K2(T) in SmFe11Co qualitatively reproduces the experimental results.

Název v anglickém jazyce

Effect of element doping and substitution on the electronic structure and macroscopic magnetic properties of SmFe12 -based compounds

Popis výsledku anglicky

The mechanisms underlying the enhancement of magnetic anisotropies (MAs) of Sm ions, owing to valence electrons at the Sm site are clarified using a detailed analysis of crystal fields (CF). In order to investigate the finite-temperature magnetic properties, we developed an effective spin model for SmFe12X (X=H, B, C, and N) and SmFe11M (M=Ti, V, and Co), where the magnetic moments, CF parameters, and exchange fields were determined by first-principle calculations. Using this model, the MA constants and magnetization curves at finite temperatures were investigated using a recently introduced analytical method [Yoshioka, Tsuchiura, and Novák, Phys. Rev. B 102, 184410 (2020)].The calculated temperature dependence of K1(T) and K2(T) in SmFe11Co qualitatively reproduces the experimental results.

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

<a href="/cs/project/EF16_019%2F0000760" target="_blank" >EF16_019/0000760: Fyzika pevných látek pro 21. století</a><br>

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

Physical Review B

ISSN

2469-9950

e-ISSN

2469-9969

Svazek periodika

105

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

16

Strana od-do

014402

Kód UT WoS článku

000754577500001

EID výsledku v databázi Scopus

2-s2.0-85122459694