Asset Details
Do you wish to reserve the book?
Nanoengineering room temperature ferroelectricity into orthorhombic SmMnO3 films
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Nanoengineering room temperature ferroelectricity into orthorhombic SmMnO3 films
Do you wish to request the book?
Nanoengineering room temperature ferroelectricity into orthorhombic SmMnO3 films
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Nanoengineering room temperature ferroelectricity into orthorhombic SmMnO3 films
2020
Overview
Orthorhombic
R
MnO
3
(
R
= rare-earth cation) compounds are type-II multiferroics induced by inversion-symmetry-breaking of spin order. They hold promise for magneto-electric devices. However, no spontaneous room-temperature ferroic property has been observed to date in orthorhombic
R
MnO
3
. Here, using 3D straining in nanocomposite films of (SmMnO
3
)
0.5
((Bi,Sm)
2
O
3
)
0.5
, we demonstrate room temperature ferroelectricity and ferromagnetism with
T
C,FM
~ 90 K, matching exactly with theoretical predictions for the induced strain levels. Large in-plane compressive and out-of-plane tensile strains (−3.6% and +4.9%, respectively) were induced by the stiff (Bi,Sm)
2
O
3
nanopillars embedded. The room temperature electric polarization is comparable to other spin-driven ferroelectric
R
MnO
3
films. Also, while bulk SmMnO
3
is antiferromagnetic, ferromagnetism was induced in the composite films. The Mn-O bond angles and lengths determined from density functional theory explain the origin of the ferroelectricity, i.e. modification of the exchange coupling. Our structural tuning method gives a route to designing multiferroics.
Multiferroic materials exhibiting ferromagnetism (FM) and ferroeletricity (FE) at room temperature (RT) are promising for applications. Here, the authors demonstrate by inducing strain in SmMnO3 via introducing vertically aligned nanocomposites that exchange coupling can be modified tuning the system from anti-FM to FM and simultaneously inducing FE at RT.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
