Volume 104, Number 2, October 2013
|Number of page(s)||6|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||26 November 2013|
Spin laser based on magnetic nano-contact array
1 Nanostructure Physics, Royal Institute of Technology - 10691 Stockholm, Sweden
2 Condensed Matter Theory, Gothenburg University - 41296 Gothenburg, Sweden
Received: 2 September 2013
Accepted: 28 October 2013
Arrays of 10 nm diameter point contacts of exchange-coupled spin-majority/spin-minority ferromagnetic metals, integrated into infrared-terahertz range photon resonators, are fabricated and measured electrically and optically. Giant, threshold-type electronic excitations under high-current pumping of the devices are observed as abrupt but reversible steps in device resistance, in many cases in excess of 100%, which correlate with optical emission from the devices. The results are interpreted as due to stimulated spin-flip electron-photon relaxation in the system.
PACS: 73.23.-b – Electronic transport in mesoscopic systems / 73.63.Rt – Nanoscale contacts / 75.75.-c – Magnetic properties of nanostructures
© EPLA, 2013
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.