Magnon transport in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Y</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:msub><mml:mi>Fe</mml:mi><mml:mn>5</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn>12</mml:mn></mml:msub><mml:mo>/</mml:mo><mml:mi>Pt</mml:mi></mml:mrow></mml:math> nanostructures with reduced effective magnetization

For applications making use of magnonic spin currents damping effects, which decrease the conductivity, have to be minimized. We here investigate magnon transport in an yttrium iron garnet thin film with strongly reduced effective magnetization. show that a three-terminal device conductivity can increased by factor up six current applied modulator electrode, generates compensation above threshold current. Moreover, we find linear dependence this on magnetic field. explain behavior magnetization and associated nearly circular precession.