Magnetic Exchange Interactions and Estimation of TN in CsNiF3 from first principles

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F08%3A00307829" target="_blank" >RIV/68378271:_____/08:00307829 - isvavai.cz</a>

Alternative codes found

RIV/68081723:_____/08:00307829

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Magnetic Exchange Interactions and Estimation of TN in CsNiF3 from first principles

Original language description

The CsNiF3 has been for long time studied as a prototype of quasi-1D planar ferromagnetic system. At very low temperature the studied system is insulator and therefore the magnetic exchange interactions should de- cay very rapidly. We treated the magnetic exchange coupling within the Heisenberg model for the nearest neighbor interaction between the anti- ferromagnetically coupled Ni-chains. The in?uence of up to the second- - -nearest neighbors on the ferromagnetic exchange coupling along the Ni-chainswas determined. The exchange interactions were calculated for the experimental volume by the density functional theory, within the all-electron approach using the local density approximation for the exchange and cor- relation. The Ne´el temperature was calculated by means of the mean-?eld theory and by the random-phase approximation method.

Czech name

Magnetické výměnné interakce a určení Neelovy teploty

Czech description

CsNiF3 je dlouho znam jako prototyp jedno-dimenzionalniho ferromagnetickeho systemu. Pri nizkych teplotach je tato latka izolatorem a tudiz vymenne interakce nejsou dalekosahle. Pomoci ab initio pristupu a Heisenbergova modelu jsme zpocitali vymenne interakce podel feromagnetickych retezcu z Ni-atomu. Sila interakce byla pocitana az do vzdalenosti dvou atomovych sousedu a rovnez mezi retezci. Z vypoctenych vymennych interakce byla urcena Neelova teplota pomoci teorie stredniho pole a tzv. nahodne fazoveaproximace.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

<a href="/en/project/GA106%2F07%2F1078" target="_blank" >GA106/07/1078: Theoretical and experimental investigations of thermodynamic properties in transition metal based intermetallic phases</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2008

Confidentiality

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

Name of the periodical

Acta Physica Polonica. A

ISSN

0587-4246

e-ISSN

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Volume of the periodical

113

Issue of the periodical within the volume

1

Country of publishing house

PL - POLAND

Number of pages

4

Pages from-to

503-506

UT code for WoS article

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EID of the result in the Scopus database

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