Your browser doesn't support javascript.
loading
Tunable Magnetoelastic Effects in Voltage-Controlled Exchange-Coupled Composite Multiferroic Microstructures.
Xiao, Z; Lo Conte, R; Goiriena-Goikoetxea, M; Chopdekar, R V; Lambert, C-H A; Li, X; N'Diaye, A T; Shafer, P; Tiwari, S; Barra, A; Chavez, A; Mohanchandra, K P; Carman, G P; Wang, K L; Salahuddin, S; Arenholz, E; Bokor, J; Candler, R N.
Afiliación
  • Xiao Z; Department of Electrical and Computer Engineering , University of California, Los Angeles , Los Angeles 90095 , California , United States.
  • Lo Conte R; Advanced Light Source , Lawrence Berkeley National Laboratory , Berkeley 94720 , California , United States.
  • Goiriena-Goikoetxea M; Department of Electrical Engineering and Computer Science , University of California, Berkeley , Berkeley 94720 , California , United States.
  • Chopdekar RV; Department of Electrical Engineering and Computer Science , University of California, Berkeley , Berkeley 94720 , California , United States.
  • Lambert CA; Department of Electricity and Electronics , University of the Basque Country , Leioa 48940 , Spain.
  • Li X; Advanced Light Source , Lawrence Berkeley National Laboratory , Berkeley 94720 , California , United States.
  • N'Diaye AT; Department of Electrical Engineering and Computer Science , University of California, Berkeley , Berkeley 94720 , California , United States.
  • Shafer P; Department of Electrical and Computer Engineering , University of California, Los Angeles , Los Angeles 90095 , California , United States.
  • Tiwari S; Advanced Light Source , Lawrence Berkeley National Laboratory , Berkeley 94720 , California , United States.
  • Barra A; Advanced Light Source , Lawrence Berkeley National Laboratory , Berkeley 94720 , California , United States.
  • Chavez A; Department of Electrical and Computer Engineering , University of California, Los Angeles , Los Angeles 90095 , California , United States.
  • Mohanchandra KP; Department of Mechanical and Aerospace Engineering , University of California, Los Angeles , Los Angeles 90095 , California , United States.
  • Carman GP; Department of Mechanical and Aerospace Engineering , University of California, Los Angeles , Los Angeles 90095 , California , United States.
  • Wang KL; Department of Mechanical and Aerospace Engineering , University of California, Los Angeles , Los Angeles 90095 , California , United States.
  • Salahuddin S; Department of Mechanical and Aerospace Engineering , University of California, Los Angeles , Los Angeles 90095 , California , United States.
  • Arenholz E; Department of Electrical and Computer Engineering , University of California, Los Angeles , Los Angeles 90095 , California , United States.
  • Bokor J; Department of Electrical Engineering and Computer Science , University of California, Berkeley , Berkeley 94720 , California , United States.
  • Candler RN; Advanced Light Source , Lawrence Berkeley National Laboratory , Berkeley 94720 , California , United States.
ACS Appl Mater Interfaces ; 12(5): 6752-6760, 2020 Feb 05.
Article en En | MEDLINE | ID: mdl-31927947
ABSTRACT
The magnetoelectric properties of exchange-coupled Ni/CoFeB-based composite multiferroic microstructures are investigated. The strength and sign of the magnetoelastic effect are found to be strongly correlated with the ratio between the thicknesses of two magnetostrictive materials. In cases where the thickness ratio deviates significantly from one, the magnetoelastic behavior of the multiferroic microstructures is dominated by the thicker layer, which contributes more strongly to the observed magnetoelastic effect. More symmetric structures with a thickness ratio equal to one show an emergent interfacial behavior which cannot be accounted for simply by summing up the magnetoelastic effects occurring in the two constituent layers. This aspect is clearly visible in the case of ultrathin bilayers, where the exchange coupling drastically affects the magnetic behavior of the Ni layer, making the Ni/CoFeB bilayer a promising next-generation synthetic magnetic system entirely. This study demonstrates the richness and high tunability of composite multiferroic systems based on coupled magnetic bilayers compared to their single magnetic layer counterparts. Furthermore, because of the compatibility of CoFeB with present magnetic tunnel junction-based spintronic technologies, the reported findings are expected to be of great interest for the development of ultralow-power magnetoelectric memory devices.
Palabras clave
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Appl Mater Interfaces Asunto de la revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Año: 2020 Tipo del documento: Article País de afiliación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Appl Mater Interfaces Asunto de la revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Año: 2020 Tipo del documento: Article País de afiliación: Estados Unidos