Current switching of resistive states in magnetoresistive manganites

A. Asamitsu (), Y. Tomioka, H. Kuwahara and Y. Tokura
Additional contact information
A. Asamitsu: *Joint Research Center for Atom Technology (JRCAT)
Y. Tomioka: *Joint Research Center for Atom Technology (JRCAT)
H. Kuwahara: *Joint Research Center for Atom Technology (JRCAT)
Y. Tokura: *Joint Research Center for Atom Technology (JRCAT)

Nature, 1997, vol. 388, issue 6637, 50-52

Abstract: Abstract Magnetoresistive devices (based on, for example, magnetic multilayers1) exhibit large changes in electrical resistance in response to a magnetic field, which has led to dramatic improvements in the data density and reading speed of magnetic recording systems. Manganese oxides having a perovskite structure (the so-called manganites) can exhibit a magnetoresistive response that is many orders of magnitude larger than that found for other materials, and there is therefore hope that these compounds might similarly be exploited for recording applications2,3,4,5,6,7,8,9,10,11. Here we show that the switching of resistive states in the manganites can be achieved not only by a magnetic field, but also by an electric field. For manganites of the form Pr1−xCaxMnO3, we find that an electrical current (and by implication a static electric field) triggers the collapse of the low-temperature, electrically insulating charge-ordered state to a metallic ferromagnetic state. We suggest that such a phenomenon could be exploited to pattern conducting ferromagnetic domains within an insulating antiferromagnetic matrix, and so provide a route for fabricating micrometre- or nanometre-scale electromagnets.

Date: 1997
References: Add references at CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
https://www.nature.com/articles/40363 Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:nature:v:388:y:1997:i:6637:d:10.1038_40363

Ordering information: This journal article can be ordered from
https://www.nature.com/

DOI: 10.1038/40363

Access Statistics for this article

Nature is currently edited by Magdalena Skipper

More articles in Nature from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().