Structural, magnetic, and spin dynamical properties of the polar antiferromagnets Ni3-xCoxTeO6 (x=1, 2)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F20%3A00531758" target="_blank" >RIV/68378271:_____/20:00531758 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27740/20:10244885 RIV/00216208:11320/20:10411114

Výsledek na webu

<a href="https://doi.org/10.1103/PhysRevB.101.014429" target="_blank" >https://doi.org/10.1103/PhysRevB.101.014429</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevB.101.014429" target="_blank" >10.1103/PhysRevB.101.014429</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Structural, magnetic, and spin dynamical properties of the polar antiferromagnets Ni3-xCoxTeO6 (x=1, 2)

Popis výsledku v původním jazyce

We present results of a multimethod investigation of the polar antiferromagnets Ni2CoTeO6 and NiCo2TeO6. Both compounds present an incommensurate antiferromagnetic helical structure with spins lying in the ab plane, in contrast to the collinear one along the c axis in Ni3TeO6. Moreover, dielectric anomalies are observed at their antiferromagnetic phase transitions, suggesting a magnetoelectric behavior. Spin and lattice dynamics studies by a combination of infrared, Raman, and terahertz spectroscopies were performed. Below TN, in both Ni2CoTeO6 and NiCo2TeO6, low-frequency spin excitations extremely sensitive to external magnetic field were observed. At least one of these magnons was simultaneously seen in Raman and THz spectra of both compounds, therefore we propose to assign them to electromagnons.n

Název v anglickém jazyce

Structural, magnetic, and spin dynamical properties of the polar antiferromagnets Ni3-xCoxTeO6 (x=1, 2)

Popis výsledku anglicky

We present results of a multimethod investigation of the polar antiferromagnets Ni2CoTeO6 and NiCo2TeO6. Both compounds present an incommensurate antiferromagnetic helical structure with spins lying in the ab plane, in contrast to the collinear one along the c axis in Ni3TeO6. Moreover, dielectric anomalies are observed at their antiferromagnetic phase transitions, suggesting a magnetoelectric behavior. Spin and lattice dynamics studies by a combination of infrared, Raman, and terahertz spectroscopies were performed. Below TN, in both Ni2CoTeO6 and NiCo2TeO6, low-frequency spin excitations extremely sensitive to external magnetic field were observed. At least one of these magnons was simultaneously seen in Raman and THz spectra of both compounds, therefore we propose to assign them to electromagnons.n

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

2020

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

—

Svazek periodika

101

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

1-10

Kód UT WoS článku

000508448000007

EID výsledku v databázi Scopus

2-s2.0-85078757773