Modeling the differential susceptibility by Lorentzians

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00619452" target="_blank" >RIV/68378271:_____/25:00619452 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1063/5.0252515" target="_blank" >https://doi.org/10.1063/5.0252515</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0252515" target="_blank" >10.1063/5.0252515</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Modeling the differential susceptibility by Lorentzians

Popis výsledku v původním jazyce

The idea of extracting information on magnetically different phases from magnetic measurements is very attractive, and many efforts have been made in this area. One of the most popular directions is to use the Preisach model formalism to analyze the 2D Preisach distribution function (PDF) obtained either from first order reversal curves or minor loops. Here, we present an alternative, a much simpler procedure-the analysis of the derivative of the saturation magnetization loop, the differential susceptibility curve. It follows the Lorentzian shape with very high accuracy for ferromagnetic polycrystalline materials. This allows decomposing any differential susceptibility curve of a complex multi-phase material into individual components representing different magnetic phases by Lorentzian peaks-in the same way as it is done in x-ray diffraction analysis of materials. We show that the minor differential susceptibility curves also have the Lorentzian shape that can facilitate the calculation of the Preisach distribution function from the experimental curves and reduce noise in the resulting PDF.

Název v anglickém jazyce

Modeling the differential susceptibility by Lorentzians

Popis výsledku anglicky

The idea of extracting information on magnetically different phases from magnetic measurements is very attractive, and many efforts have been made in this area. One of the most popular directions is to use the Preisach model formalism to analyze the 2D Preisach distribution function (PDF) obtained either from first order reversal curves or minor loops. Here, we present an alternative, a much simpler procedure-the analysis of the derivative of the saturation magnetization loop, the differential susceptibility curve. It follows the Lorentzian shape with very high accuracy for ferromagnetic polycrystalline materials. This allows decomposing any differential susceptibility curve of a complex multi-phase material into individual components representing different magnetic phases by Lorentzian peaks-in the same way as it is done in x-ray diffraction analysis of materials. We show that the minor differential susceptibility curves also have the Lorentzian shape that can facilitate the calculation of the Preisach distribution function from the experimental curves and reduce noise in the resulting PDF.

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/EH22_008%2F0004591" target="_blank" >EH22_008/0004591: Feroické multifunkcionality</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Review of Scientific Instruments

ISSN

0034-6748

e-ISSN

1089-7623

Svazek periodika

96

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

044707

Kód UT WoS článku

001472327200003

EID výsledku v databázi Scopus

2-s2.0-105003314859