Nonreciprocal amplification of spin-wave signals

Mingqiang Bao, Kin Wong, Alexander Khitun, Kang L. Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution


The research on spin wave is attracting more attentions and novel spin-wave based devices including nanometer size phase-shifter, logical gates, and spin-wave bus have been developed. In order to fully realize functions promised by spin waves, especially in cascaded signal processing, a device that can directly amplify spin-wave signal is indispensable. Ferromagnetic parametric amplifiers - amplifying spin-wave signals by pump waves whose frequencies are typically double of signal frequency, were proposed. So far, all demonstrated spin-wave amplification experiments reported by other groups have used ferrite insulating materials [1]. In this abstract, we report spin-wave amplification with a conducting metallic thin film as well as a new magnetic device property - nonreciprocal amplification of spin-wave signals even though the spinwave propagation is reciprocal.

Original languageEnglish
Title of host publication68th Device Research Conference, DRC 2010
Number of pages2
Publication statusPublished - 2010
Event68th Device Research Conference, DRC 2010 - Notre Dame, IN, United States
Duration: 2010 Jun 212010 Jun 23

Publication series

NameDevice Research Conference - Conference Digest, DRC
ISSN (Print)1548-3770


Other68th Device Research Conference, DRC 2010
Country/TerritoryUnited States
CityNotre Dame, IN

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


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