Mechanical Signature of Heat Generated in a Current-Driven Ferromagnetic Resonance System

Cho, Sung Un; Jo, Myunglae; Park, Seondo; Lee, Jae-Hyun; Yang, Chanuk; Kang, Sangmo; Park, Yun Daniel

doi:10.1103/physrevapplied.8.014038

Cited by 4 publications

(3 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…When microwave magnetic fields are applied to excite magnetizations in a magnet, the field energy can be converted to one or another energy form (e.g., heat), thus leading to temperature increments during the processes of magnetization excitation and dissipation. Therefore, the heat-dissipation mechanism is promising for potential applications to spintronics and magnonics 14 – 19 as well as magnetic hyperthermia bio-applications 20 , 21 .…”

Section: Introductionmentioning

confidence: 99%

“…The microscopic origin of damping has been intensively studied 22 – 24 in the research area of magnetization dynamics; however, direct experimental measurements of FMR-driven heat generation have been reported only in several studies on thermoelectric detection 25 , 26 , the bolometric effect 18 , 27 , and mechanical detection via the magnetostriction effect 14 . In our earlier theoretical and numerical calculation work in Ref.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Highly efficient heat-dissipation power driven by ferromagnetic resonance in MFe2O4 (M = Fe, Mn, Ni) ferrite nanoparticles

Lee

Kim

2022

Sci Rep

View full text Add to dashboard Cite

We experimentally demonstrated that heat-dissipation power driven by ferromagnetic resonance (FMR) in superparamagnetic nanoparticles of ferrimagnetic MFe2O4 (M = Fe, Mn, Ni) gives rise to highly localized incrementation of targeted temperatures. The power generated thereby is extremely high: two orders of magnitude higher than that of the conventional Néel-Brownian model. From micromagnetic simulation and analytical derivation, we found robust correlations between the temperature increment and the intrinsic material parameters of the damping constant as well as the saturation magnetizations of the nanoparticles’ constituent materials. Furthermore, the magnetization–dissipation-driven temperature increments were reliably manipulated by extremely low strengths of applied AC magnetic fields under resonance field conditions. Our experimental results and theoretical formulations provide for a better understanding of the effect of FMR on the efficiency of heat generation as well as straightforward guidance for the design of advanced materials for control of highly localized incrementation of targeted temperatures using magnetic particles in, for example, magnetic hyperthermia bio-applications.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Highly efficient heat-dissipation power driven by ferromagnetic resonance in MFe2O4 (M = Fe, Mn, Ni) ferrite nanoparticles

Lee

Kim

2022

Sci Rep

View full text Add to dashboard Cite

show abstract

“…21,22) However, even in this method, the influence of the heating effect during the ferromagnetic resonance should be considered. [23][24][25][26][27] In order to overcome these obstacles, we have recently developed nanopillar-based lateral spin valves. In this structure, by minimizing the volume of the ferromagnetic injector with a large Cu heat sink, the influence of the Joule heating is significantly reduced.…”

mentioning

confidence: 99%

Temperature evolution of the charge and spin transport in Cu/Nb interface

M.Ishitaki

Ohnishi

Kimura

2018

Jpn. J. Appl. Phys.

View full text Add to dashboard Cite

The transport properties for the charge and spin currents in a normal-metal/superconductor interface have been investigated by using a nano-pillar based lateral spin valve. Owing to the efficient reduction of the Joule heating, we were able to observe the temperature and bias-current dependences of the spin transport in the Cu/Nb bilayer system. From the temperature dependence of the spin signal, the superconducting gap of the Nb in contact with Cu was found to open gradually with decreasing the temperature. We also found that the inhomogeneous superconducting property produces the significant temperature and field dependences of the background signal in the nonlocal measurement around the transition temperature.

show abstract

Influence of heat flow control on dynamical spin injection in CoFeB/Pt/CoFeB trilayer

Obinata

Iimori

Ohnishi

et al. 2022

Sci Rep

View full text Add to dashboard Cite

A dynamical spin injection based on the ferromagnetic resonance in a ferromagnetic/nonmagnetic bi-layered structure, is a powerful mean for generating and manipulating the spin current. Although the mechanism of the dynamical spin injection is mainly attributed to the spin pumping, the detailed mechanism and the quantitative understanding for related phenomena are still controversial. As an another important contribution to the dynamical spin injection, the heating effect due to the resonant precessional motion of the magnetization is pointed out recently. In order to quantify the contribution from the heating effect, we here investigate the dynamical spin injection in a CoFeB/Pt/CoFeB trilayer. Although the contribution from the spin pumping diminishes because of the symmetric spin injection from the upper and lower interfaces, a significant inverse spin Hall voltage has been clearly observed. We show that the observed voltage can be quantitatively understood by the thermal spin injection due to a heating effect during the ferromagnetic resonance. A proper combination between the spin pumping and the heat-flow control in the multi-layered system is a key for the efficient dynamical spin injection.

show abstract

Mechanical Signature of Heat Generated in a Current-Driven Ferromagnetic Resonance System

Cited by 4 publications

References 35 publications

Highly efficient heat-dissipation power driven by ferromagnetic resonance in MFe2O4 (M = Fe, Mn, Ni) ferrite nanoparticles

Highly efficient heat-dissipation power driven by ferromagnetic resonance in MFe2O4 (M = Fe, Mn, Ni) ferrite nanoparticles

Temperature evolution of the charge and spin transport in Cu/Nb interface

Influence of heat flow control on dynamical spin injection in CoFeB/Pt/CoFeB trilayer

Contact Info

Product

Resources

About