Wireless communication between two magnetic tunnel junctions acting as oscillator and diode

Magnetic tunnel junctions are nanoscale spintronic devices with microwave generation and detection capabilities. Here we use the rectification effect called "spin-diode" in a magnetic tunnel junction to wirelessly detect the microwave emission of another junction in the auto-oscillatory regime. We show that the rectified spin-diode voltage measured at the receiving junction end can be reconstructed from the independently measured auto-oscillation and spin diode spectra in each junction. Finally we adapt the auto-oscillator model to the case of spin-torque oscillator and spin-torque diode and we show that accurately reproduces the experimentally observed features. These results will be useful to design circuits and chips based on spintronic nanodevices communicating through microwaves.

[1]  Mario Carpentieri,et al.  Experimental Demonstration of Spintronic Broadband Microwave Detectors and Their Capability for Powering Nanodevices , 2019, Physical Review Applied.

[2]  A Fukushima,et al.  Spin-torque resonant expulsion of the vortex core for an efficient radiofrequency detection scheme. , 2015, Nature nanotechnology.

[3]  P. Bortolotti,et al.  Analog and Digital Phase Modulation and Signal Transmission with Spin-Torque Nano-Oscillators , 2019, Physical Review Applied.

[4]  Vincent Cros,et al.  Field dependence of spin-transfer-induced vortex dynamics in the nonlinear regime , 2012 .

[5]  V. Tiberkevich,et al.  Nonlinear Auto-Oscillator Theory of Microwave Generation by Spin-Polarized Current , 2009, IEEE Transactions on Magnetics.

[6]  S. Yuasa,et al.  Spin-torque diode effect in magnetic tunnel junctions , 2005, Nature.

[7]  U. Ebels,et al.  Frequency shift keying by current modulation in a MTJ-based STNO with high data rate , 2017, 1707.04467.

[8]  D. Ralph,et al.  Measurement of the spin-transfer-torque vector in magnetic tunnel junctions , 2007, 0705.4207.

[9]  A Fukushima,et al.  Highly sensitive nanoscale spin-torque diode. , 2014, Nature materials.

[10]  J. Sun,et al.  Spin-torque driven ferromagnetic resonance in a nonlinear regime , 2009, 0910.4678.

[11]  Robert A. Buhrman,et al.  Time-resolved measurement of spin-transfer-driven ferromagnetic resonance and spin torque in magnetic tunnel junctions , 2011 .

[12]  S. E. Russek,et al.  Frequency modulation of spin-transfer oscillators , 2005 .

[13]  Berger.  Emission of spin waves by a magnetic multilayer traversed by a current. , 1996, Physical review. B, Condensed matter.

[14]  W. Rippard,et al.  Direct-current induced dynamics in Co90 Fe10/Ni80 Fe20 point contacts. , 2003, Physical review letters.

[15]  D. Ralph,et al.  Microwave oscillations of a nanomagnet driven by a spin-polarized current , 2003, Nature.

[16]  Hyuncheol Park,et al.  Spin nano–oscillator–based wireless communication , 2014, Scientific Reports.

[17]  S. Yuasa,et al.  Quantitative measurement of voltage dependence of spin-transfer torque in MgO-based magnetic tunnel junctions , 2008 .

[18]  J. C. Sloncxewski,et al.  Current-driven excitation of magnetic multilayers , 2003 .

[19]  Baoshun Zhang,et al.  Giant spin-torque diode sensitivity in the absence of bias magnetic field , 2016, Nature communications.

[20]  Ilya Krivorotov,et al.  SPIN-TORQUE MICROWAVE DETECTOR WITH OUT-OF-PLANE PRECESSING MAGNETIC MOMENT , 2012 .

[21]  A. Fert,et al.  Large microwave generation from current-driven magnetic vortex oscillators in magnetic tunnel junctions. , 2010, Nature communications.