Signatures of farther neighbor couplings in artificial square ice

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F21%3A00544284" target="_blank" >RIV/68081731:_____/21:00544284 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26210/21:PU147666

Výsledek na webu

<a href="https://journals.aps.org/prb/abstract/10.1103/PhysRevB.103.094405" target="_blank" >https://journals.aps.org/prb/abstract/10.1103/PhysRevB.103.094405</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevB.103.094405" target="_blank" >10.1103/PhysRevB.103.094405</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Signatures of farther neighbor couplings in artificial square ice

Popis výsledku v původním jazyce

The analysis of the magnetic structure factor obtained after imaging a field-demagnetized artificial square ice reveals qualitative deviations from what would predict the six-vertex model. More specifically, additional features appear for certain q vectors in the experimental magnetic structure factor that are absent in the theoretical one. Using Monte Carlo simulations, we demonstrate that these features originate from dipolarlike, farther neighbor couplings. Our results thus show that the long-range magnetostatic interactions coupling the nanomagnets are not totally washed out in a field-demagnetized artificial square ice and cannot be neglected as they impact the magnetic correlations within or at the vicinity of the ice manifold. Artificial square ice systems are then expected to ultimately order, provided that the ground state can be approached.

Název v anglickém jazyce

Signatures of farther neighbor couplings in artificial square ice

Popis výsledku anglicky

The analysis of the magnetic structure factor obtained after imaging a field-demagnetized artificial square ice reveals qualitative deviations from what would predict the six-vertex model. More specifically, additional features appear for certain q vectors in the experimental magnetic structure factor that are absent in the theoretical one. Using Monte Carlo simulations, we demonstrate that these features originate from dipolarlike, farther neighbor couplings. Our results thus show that the long-range magnetostatic interactions coupling the nanomagnets are not totally washed out in a field-demagnetized artificial square ice and cannot be neglected as they impact the magnetic correlations within or at the vicinity of the ice manifold. Artificial square ice systems are then expected to ultimately order, provided that the ground state can be approached.

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

2021

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

103

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

094405

Kód UT WoS článku

000627549800005

EID výsledku v databázi Scopus

2-s2.0-85102894748