Field-driven linear magnetoelectric coupling and entangled spin-phonon behavior in the antiferromagnetic spin-chain compound MnSb2O4

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00636210" target="_blank" >RIV/68378271:_____/25:00636210 - isvavai.cz</a>

Výsledek na webu

<a href="https://hdl.handle.net/11104/0368165" target="_blank" >https://hdl.handle.net/11104/0368165</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevB.111.174453" target="_blank" >10.1103/PhysRevB.111.174453</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Field-driven linear magnetoelectric coupling and entangled spin-phonon behavior in the antiferromagnetic spin-chain compound MnSb2O4

Popis výsledku v původním jazyce

Low-dimensional magnets are known for their intriguing magnetic properties, often intricately linked with a variety of other physical phenomena. In this study, we report that the spin-chain compound MnSb2O4 undergoes long-range antiferromagnetic (AFM) ordering at TN = 52 K. Analysis of neutron powder diffraction data reveals A-type AFM ordering with a magnetic space group of Cc'cm, associated with the magnetic point group m' mm. The proposed magnetic structure is supported by first-principles density functional theory calculations, allowing a quantitative analysis of interatomic magnetic exchange interactions and providing crucial insights into the strength and nature of magnetic couplings. Interestingly, below TN, a magnetic field-driven electric polarization with strong linear magnetoelectric coupling is observed, which is well supported by the magnetoelectric tensor associated with the m'mm symmetry. High-resolution synchrotron x-ray diffraction and Raman spectroscopy studies reveal a local structural distortion occurring below 150 K, which appears to be linked to the short-range AFM spin correlations prevailing well above TN. Additionally, a significant phonon renormalization induced by spin ordering is observed, indicating substantial spin-phonon coupling in this system.

Název v anglickém jazyce

Field-driven linear magnetoelectric coupling and entangled spin-phonon behavior in the antiferromagnetic spin-chain compound MnSb2O4

Popis výsledku anglicky

Low-dimensional magnets are known for their intriguing magnetic properties, often intricately linked with a variety of other physical phenomena. In this study, we report that the spin-chain compound MnSb2O4 undergoes long-range antiferromagnetic (AFM) ordering at TN = 52 K. Analysis of neutron powder diffraction data reveals A-type AFM ordering with a magnetic space group of Cc'cm, associated with the magnetic point group m' mm. The proposed magnetic structure is supported by first-principles density functional theory calculations, allowing a quantitative analysis of interatomic magnetic exchange interactions and providing crucial insights into the strength and nature of magnetic couplings. Interestingly, below TN, a magnetic field-driven electric polarization with strong linear magnetoelectric coupling is observed, which is well supported by the magnetoelectric tensor associated with the m'mm symmetry. High-resolution synchrotron x-ray diffraction and Raman spectroscopy studies reveal a local structural distortion occurring below 150 K, which appears to be linked to the short-range AFM spin correlations prevailing well above TN. Additionally, a significant phonon renormalization induced by spin ordering is observed, indicating substantial spin-phonon coupling in this system.

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

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

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

Physical Review B

ISSN

2469-9950

e-ISSN

2469-9969

Svazek periodika

111

Číslo periodika v rámci svazku

17

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

14

Strana od-do

174453

Kód UT WoS článku

001501125700003

EID výsledku v databázi Scopus

2-s2.0-105007608513