Magnetoresistive detection of spin waves

We explore a detection method for spin-waves that consists of integrating a magneto-resistive sensor on a magnonic waveguide. When subjected to the stray magnetic field generated by the spin-wave, the relative orientation of the magnetizations of the two magnetic layers in the sensor oscillates in time, resulting in an electrical resistance change according to the so-called giant magneto-resistance effect. Upon application of an appropriate current bias, this variation of resistance translates into a sizable microwave voltage. At the sub-micrometer scale explored here, this signal is about fifty times larger than the one extracted from conventional inductive measurements of spin-waves for comparable detection areas. Moreover, such a detection scheme is expected to scale very favorably down to the nanometer size relevant for future magnon-based data processing architectures., , , # Magnetoresistive detection of spin waves

Dataset DOI: [10.5061/dryad.zw3r228kj](10.5061/dryad.zw3r228kj)

## Description of the data and file structure

This dataset contains all the data exposed in the manuscript.

### Files and variables

#### File: Inductive_20mT_1p5mA.txt

**Description:** Fig. 2A. Corresponds to the inductive contribution in the total signal shown in Fig. 1C (pIDC_mIDC_20mT_1p5mA.txt)

##### Variables

* Frequency: Microwave frequency applied in the exciting antenna (GHz)
* Re(SigmaZ21): Blue (dashed), real part of the inductive contribution (mohms)
* Im(SigmaZ21): Red, imaginary part of the inductive contribution (mohms)
* Mag(SigmaZ21): Black (dotted), modulus of the inductive contribution (mohms)

#### File: kalinikos_Py.txt

**Description:** Fig. 2D blue curve. Theoretical resonance frequency of the spin-wave in the Permalloy (Py) waveguide vs applied field (Kalinikos and Slavin model)

##### Variables

* Field: Magnitude of the applied field (mT)
* Frequenc...