Magnetoelectric effect in antiferromagnetic multiferroic Pb(Fe1/2 N b1/2)O3 and its solid solutions with PbTi O3

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F17%3A00473841" target="_blank" >RIV/68378271:_____/17:00473841 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1103/PhysRevB.95.014207" target="_blank" >http://dx.doi.org/10.1103/PhysRevB.95.014207</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevB.95.014207" target="_blank" >10.1103/PhysRevB.95.014207</a>

Result language

angličtina

Original language name

Magnetoelectric effect in antiferromagnetic multiferroic Pb(Fe1/2 N b1/2)O3 and its solid solutions with PbTi O3

Original language description

Antiferromagnets (AFMs) are presently considered as promising materials for applications in spintronics and random access memories due to the robustness of information stored in the AFM state against perturbing magnetic fields. In this respect, AFM multiferroics may be attractive alternatives for conventional AFMs as the coupling of magnetism with ferroelectricity (magnetoelectric effect) offers an elegant possibility of electric-field control and switching of AFM domains. Here we report the results of comprehensive experimental and theoretical investigations of the quadratic magnetoelectric (ME) effect in single crystals and highly resistive ceramics of Pb(Fe1/2Nb1/2)O3 (PFN) and (1-x)Pb(Fe1/2Nb1/2)O3-xPbTiO3(PFN-xPT). We are interested primarily in the temperature range of the multiferroic phase, T<150K, where the ME coupling coefficient is extremely large (as compared to the well-known multiferroic BiFeO3) and shows sign reversal at the paramagnetic-to-antiferromagnetic phase transition. Moreover, we observe strong ME response nonlinearity in the AFM phase in the magnetic fields of only a few kOe. To describe the temperature and magnetic field dependencies of the above unusual features of the ME effect in PFN and PFN-xPT, we use a simple phenomenological Landau approach which explains experimental data surprisingly well. Our ME measurements demonstrate that the electric field of only 20-25 kV/cm is able to switch the AFM domains and align them with ferroelectric ones even in PFN ceramic samples.

Czech name

—

Czech description

—

Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

—

OECD FORD branch

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

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

Name of the periodical

Physical Review. B

ISSN

1098-0121

e-ISSN

—

Volume of the periodical

95

Issue of the periodical within the volume

1

Country of publishing house

US - UNITED STATES

Number of pages

13

Pages from-to

—

UT code for WoS article

—

EID of the result in the Scopus database

2-s2.0-85012194067