Journal Article

FZJ-2021-04861

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Engineering new limits to magnetostriction through metastability in iron-gallium alloys

Meisenheimer, P. B. ; Steinhardt, R. A. ; Sung, S. H. ; Williams, L. D. ; Zhuang, S. ; Nowakowski, M. E. ; Novakov, S. ; Torunbalci, M. M. ; Prasad, B. ; Zollner, C. J. ; Wang, Z.Extern* ; Dawley, N. M. ; Schubert, J.FZJ* ; Hunter, A. H. ; Manipatruni, S. ; Nikonov, D. E. ; Young, I. A. ; Chen, L. Q. ; Bokor, J. ; Bhave, S. A. ; Ramesh, R. ; Hu, J.-M.Extern* ; Kioupakis, E. ; Hovden, R. ; Schlom, D. G. ; Heron, J. T. (Corresponding author)

2021
Nature Publishing Group UK [London]

This record in other databases:      

Please use a persistent id in citations: http://hdl.handle.net/2128/29397  doi:10.1038/s41467-021-22793-x

Abstract: Magnetostrictive materials transduce magnetic and mechanical energies and when combinedwith piezoelectric elements, evoke magnetoelectric transduction for high-sensitivity magneticfield sensors and energy-efficient beyond-CMOS technologies. The dearth of ductile, rare-earth-free materials with high magnetostrictive coefficients motivates the discovery ofsuperior materials. Fe 1−x Ga x alloys are amongst the highest performing rare-earth-freemagnetostrictive materials; however, magnetostriction becomes sharply suppressed beyondx = 19% due to the formation of a parasitic ordered intermetallic phase. Here, we harnessepitaxy to extend the stability of the BCC Fe 1−x Ga x alloy to gallium compositions as high asx = 30% and in so doing dramatically boost the magnetostriction by as much as 10x relativeto the bulk and 2x larger than canonical rare-earth based magnetostrictors. A Fe 1−x Ga x − [Pb(Mg 1/3 Nb 2/3 )O 3 ] 0.7 −[PbTiO 3 ] 0.3 (PMN-PT) composite magnetoelectric shows robust 90°electrical switching of magnetic anisotropy and a converse magnetoelectric coefficientof 2.0 × 10 −5 s m −1 . When optimally scaled, this high coefficient implies stable switching at~80 aJ per bit.

---

Contributing Institute(s):

1. Halbleiter-Nanoelektronik (PGI-9)

Research Program(s):

1. 5233 - Memristive Materials and Devices (POF4-523) (POF4-523)

Appears in the scientific report 2021

---

Database coverage:
; ; ; ; Article Processing Charges ; BIOSIS Previews ; Biological Abstracts ; Clarivate Analytics Master Journal List ; Current Contents - Agriculture, Biology and Environmental Sciences ; Current Contents - Life Sciences ; Current Contents - Physical, Chemical and Earth Sciences ; DOAJ Seal ; Essential Science Indicators ; Fees ; IF >= 10 ; JCR ; PubMed Central ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection ; Zoological Record

---