KLI

Room-temperature multiferroicity in NiFe2O4 and its magnetoelectric coupling intensified through defect engineering

Metadata Downloads
Abstract
The well-known ferromagnetic oxide, NiFe2O4, was studied as a potential candidate for room-temperature Type II magnetoelectrics. A spin canting as one of the essential requirements for Type II multiferroics was induced by breaking the stoichiometry, that is, intentionally subtracting Fe ions. We observed that Fe ions were first subtracted exclusively from the tetrahedral sites, leading to an increase in the magnetoelectric coupling owing to an increasing degree of spin canting. The enhancement in the magnetoelectric coupling culminated beyond the subtraction level of similar to 30 at.%, at which Fe ions started to be removed from the octahedral sites. Alongside, we observed that the subtraction of Fe ions gives rise to a ferroelectricity due to the formation of defect complexes that establish an internal bias field.
Author(s)
조재현조성우이준한Haribabu Palneedi이주현김황필이년종Siriporn TiguntaSoodkhetPojprapai김상훈Jungho Ryu오윤석홍승범조욱
Issued Date
2021
Type
Article
Keyword
ferroelectricity/ferroelectric materialsFerromagnetismferromagnetism/ferromagnetic materialsmagnetoelectricsmultiferroicsSpinel groupspinels
DOI
10.1111/jace.18012
URI
https://oak.ulsan.ac.kr/handle/2021.oak/9526
https://ulsan-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=TN_cdi_gale_infotracacademiconefile_A678207245&context=PC&vid=ULSAN&lang=ko_KR&search_scope=default_scope&adaptor=primo_central_multiple_fe&tab=default_tab&query=any,contains,Room-temperature%20multiferroicity%20in%20NiFe2O4%20and%20its%20magnetoelectric%20coupling%20intensified%20through%20defect%20engineering&offset=0&pcAvailability=true
Publisher
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
Location
미국
Language
영어
ISSN
0002-7820
Citation Volume
104
Citation Number
12
Citation Start Page
6384
Citation End Page
6392
Appears in Collections:
Natural Science > Physics
Authorize & License
  • Authorize공개
Files in This Item:
  • There are no files associated with this item.

Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.