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Title: Spin caloritronic nano-oscillator

Journal Article · · Nature Communications
ORCiD logo [1];  [1];  [1];  [2];  [1];  [1];  [3];  [4];  [4];  [5];  [3];  [1]
  1. Univ. of California, Irvine, CA (United States). Dept. of Physics and Astronomy
  2. Univ. of California, Irvine, CA (United States). Dept. of Physics and Astronomy; Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Dresden (Germany). Inst. of Ion Beam Physics and Materials Research
  3. Colorado State Univ., Fort Collins, CO (United States). Physics Dept.
  4. Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Dresden (Germany). Inst. of Ion Beam Physics and Materials Research
  5. Univ. of California, Los Angeles, CA (United States). Dept. of Physics and Astronomy

Energy loss due to ohmic heating is a major bottleneck limiting down-scaling and speed of nano-electronic devices, and harvesting ohmic heat for signal processing is a major challenge in modern electronics. Here, we demonstrate that thermal gradients arising from ohmic heating can be utilized for excitation of coherent auto-oscillations of magnetization and for generation of tunable microwave signals. The heat-driven dynamics is observed in Y3Fe5O12/Pt bilayer nanowires where ohmic heating of the Pt layer results in injection of pure spin current into the Y3Fe5O12 layer. This leads to excitation of auto-oscillations of the Y3Fe5O12 magnetization and generation of coherent microwave radiation. Thus, our work paves the way towards spin caloritronic devices for microwave and magnonic applications.

Research Organization:
Univ. of California, Irvine, CA (United States); Energy Frontier Research Centers (EFRC) (United States). Spins and Heat in Nanoscale Electronic Systems (SHINES)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); US Army Research Office (ARO)
Grant/Contract Number:
SC0012670; SC0012190; W911NF-14-1-0016; SC0014467
OSTI ID:
1425652
Journal Information:
Nature Communications, Vol. 8, Issue 1; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 82 works
Citation information provided by
Web of Science

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Cited By (23)

Enhancement of the Spin Pumping Effect by Magnon Confluence Process in YIG/Pt Bilayers journal March 2019
Ultra-low damping insulating magnetic thin films get perpendicular journal August 2018
Spin–orbit torque driven by a planar Hall current journal October 2018
Spin Hall-induced auto-oscillations in ultrathin YIG grown on Pt journal January 2018
Oscillatory interlayer coupling in spin Hall systems journal February 2018
Spin torque nano-oscillator driven by combined spin injection from tunneling and spin Hall current journal February 2019
Pseudomorphic spinel ferrite films with perpendicular anisotropy and low damping journal August 2018
Spin-orbit torque and spin pumping in YIG/Pt with interfacial insertion layers journal April 2018
Ultrathin interfacial layer with suppressed room temperature magnetization in magnesium aluminum ferrite thin films journal September 2019
Magnon and phonon thermometry with inelastic light scattering journal February 2018
Pure spin currents in magnetically ordered insulator/normal metal heterostructures journal July 2018
Thermal gradient driven domain wall dynamics journal August 2019
Emission of Coherent Propagating Magnons by Insulator-Based Spin-Orbit-Torque Oscillators journal October 2018
Magnetic droplet solitons generated by pure spin currents journal December 2017
Magnon Transport in Quasi-Two-Dimensional van der Waals Antiferromagnets journal February 2019
Experimental signatures of spin superfluid ground state in canted antiferromagnet Cr 2 O 3 via nonlocal spin transport journal April 2018
Competition of direct and indirect sources of thermal entanglement in a spin-star network journal February 2018
Spin-orbit torque and spin pumping in YIG/Pt with interfacial insertion layers text January 2018
Ultra-low damping insulating magnetic thin films get perpendicular text January 2018
Thermal gradient driven domain wall dynamics text January 2018
Magnon transport in quasi-two-dimensional van der Waals antiferromagnets text January 2019
Bose–Einstein condensation of quasiparticles by rapid cooling journal April 2020
Electrical Control of Coherent Spin Rotation of a Single-Spin Qubit text January 2020