Nonreciprocal surface magnetoelastic dynamics

Yu, Tao

doi:10.1103/physrevb.102.134417

Cited by 15 publications

(13 citation statements)

References 59 publications

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“…The dipolar interaction has been studied in magnetism for many decades, but the analogy with the spin-orbit interaction in creating chirality was emphasized only recently. Recently, many theoretical predictions and experimental discoveries of chiral interactions among magnetic [47][48][49][50][51][52][53][54][55][56][57][58], photonic [59][60][61][62][63][64][65][66][67][68][69][70][71][72][73], phononic [74][75][76][77][78][79][80][81][82], electronic [83], and plasmonic [84][85][86][87][88][89] excitations in spintronics are revealed, which are found to mediate the excitation of quasiparticles into a single direction, leading to phenomena such as chiral spin pumping [50], chiral spin Seebeck [50], chiral phonon pumping by magnetization dynamics [74], magnon diodes <...…”

Section: Chirality As Generalized Spin-orbit Interactionmentioning

confidence: 99%

“…• Spin-momentum locking [15,16] • Phonon cavity [74] • Phonon diode [74][75][76][77][78][79][80][81][82] • Chiral pumping of spin waves [74,75,81] • Classical or quantum transducer…”

Section: Chiral Waves Features Functionalitiesmentioning

confidence: 99%

“…• Chiral pumping of surface phonons (input-output theory [74], magnetoelasticity [81], simulation [81], and Landauer-Büttiker [75])…”

Section: Systems Theory Samples and Phenomenamentioning

confidence: 99%

“…In spite of the ubiquitous chirality in magnetic systems, their non-Hermitian topology has rarely been addressed [412,413]. We emphasize here the chiral interaction between the Kittel magnons of magnetic particles or wires with propagating spin waves in magnetic films [47,48,[50][51][52], waveguide microwaves [60,61,68], and surface acoustic waves (see below) [75,76,81]. These waves can propagate over long distances and thereby mediate the chiral interaction between magnets [51,52,60,61,74,75].…”

Section: Spin Skin Effectmentioning

confidence: 99%

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Chirality as Generalized Spin-Orbit Interaction in Spintronics

Chen¹,

Luo²,

Bauer³

2022

Preprint

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Chirality or handedness is a digital relation between three vectors that distinguishes an object from its mirror image, such as the spread fingers of the right and left hand. The chirality of ground state magnetic textures defined by the vectors of magnetization, its gradient, and an electric field from broken inversion symmetry can be fixed by a strong relativistic spin-orbit interaction. This review focuses on the chirality observed in the excited states of the magnetic order, dielectrics, and conductors that hold transverse spins when they are evanescent. Even without any relativistic effect, the transverse spin of the evanescent waves are locked to the momentum and the surface normal of their propagation plane. This chirality thereby acts as a generalized spin-orbit interaction, which leads to the discovery of various chiral interactions between magnetic, phononic, electronic, photonic, and plasmonic excitations in spintronics that mediate the excitation of quasiparticles into a single direction, leading to phenomena such as chiral spin and phonon pumping, chiral spin Seebeck, spin skin, magnonic trap, magnon Doppler, and spin diode effects. Intriguing analogies with electric counterparts in the nano-optics and plasmonics exist. After a brief review of the concepts of chirality that characterize the ground state chiral magnetic textures and chirally coupled magnets in spintronics, we turn to the chiral phenomena of excited states. We present a unified electrodynamic picture for dynamical chirality in spintronics in terms of generalized spin-orbit interaction and compare it with that in nano-optics and plasmonics. Based on the general theory, we subsequently review the theoretical progress and experimental evidence of chiral interaction, as well as the near-field transfer of the transverse spins, between various excitations in magnetic, photonic, electronic and phononic nanostructures at GHz time scales. We provide a perspective for future research before concluding this article.

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Section: Chirality As Generalized Spin-orbit Interactionmentioning

confidence: 99%

Section: Chiral Waves Features Functionalitiesmentioning

confidence: 99%

“…• Chiral pumping of surface phonons (input-output theory [74], magnetoelasticity [81], simulation [81], and Landauer-Büttiker [75])…”

Section: Systems Theory Samples and Phenomenamentioning

confidence: 99%

Section: Spin Skin Effectmentioning

confidence: 99%

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Chirality as Generalized Spin-Orbit Interaction in Spintronics

Chen¹,

Luo²,

Bauer³

2022

Preprint

Self Cite

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“…Many protocols have been proposed in both theoretical and experimental perspective to achieve this propose. In the electromagnetic domain, special magnetic effects are explored and widely used for nonreciprocal response [7][8][9]. In the optical domain, directional transmission of light has been achieved with optical nonlinearities or dynamically modulated media [10,11].…”

Section: Introductionmentioning

confidence: 99%

Nonlocal nonreciprocal optomechanical circulator

Zheng,

Peng,

Cheng

et al. 2021

Preprint

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A nonlocal circulator protocol is proposed in hybrid optomechanical system. By analogy with quantum communication, using the input-output relationship, we establish the quantum channel between two optical modes with long-range. The three body nonlocal interaction between the cavity and the two oscillators is obtained by eliminating the optomechanical cavity mode and verifying the Bell-CHSH inequality of continuous variables. By introducing the phase accumulation between cyclic interactions, the unidirectional transmission of quantum state between optical mode and two mechanical modes are achieved. The results show that nonreciprocal transmissions are achieved as long as the accumulated phase reaches a certain value. In addition, the effective interaction parameters in our system are amplified, which reduces the difficulty of the implementation of our protocol. Our research can provide potential applications for nonlocal manipulation and transmission control of quantum platforms.

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