Antiferromagnetic Spin Wave Field-Effect Transistor

Cheng, Ran; Daniels, Matthew W.; Zhu, Jian‐Gang; Xiao, Di

doi:10.1038/srep24223

Cited by 119 publications

(87 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…11,12 A number of possible applications have been proposed that exploit unique properties of antiferromagnetic magnons. [13][14][15][16][17][18][19] Magnonic spin currents in antiferromagnets can be created in several ways. There is a spin pumping mechanism from a ferromagnetic layer, 20 injection from a metallic layer across the interface, 21 and generation using a temperature gradient via a magnonic spin Seebeck effect.…”

Section: Introductionmentioning

confidence: 99%

Excitation of magnon spin photocurrents in antiferromagnetic insulators

et al. 2018

View full text Add to dashboard Cite

In the circular photogalvanic effect, circularly polarized light can produce a direct electron photocurrent in metals and the direction of the current depends on the polarization. We suggest that an analogous nonlinear effect exists for antiferromagnetic insulators wherein the total spin of light and spin waves is conserved. In consequence, a spin angular momentum is expected to be transfered from photons to magnons so that a circularly polarized electromagnetic field will generate a direct magnon spin current. The direction of the current is determined by the helicity of the light. We show that this resonant effect appears as a second order light-matter interaction. We find also a geometric contribution to the spin photocurrent, which appears for materials with complex lattice structures and Dzyaloshinskii-Moriya interactions.

show abstract

Section: Introductionmentioning

confidence: 99%

Excitation of magnon spin photocurrents in antiferromagnetic insulators

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Because the precessional motion of magnetization has been generally employed for fast magnetization switching 1–5 , much attention has been paid to antiferromagnetic oxide system because of its ultrafast spin response ( s −1 ), coupled with large exchange energy, J , and anisotropy energy, K 6 ; such characteristics highlight its potential applicability 7–20 . The exchange interaction is found not to contribute to the precession in ferromagnetic system ( s −1 ) 14, 21 .…”

Section: Introductionmentioning

confidence: 99%

Field-driven dynamics and time-resolved measurement of Dzyaloshinskii-Moriya torque in canted antiferromagnet YFeO3

Kim

Gruenberg

Han

et al. 2017

Sci Rep

View full text Add to dashboard Cite

Electrical spin switching in an antiferromagnet is one of the key issues for both academic interest and industrial demand in new-type spin devices because an antiferromagnetic system has a negligible stray field due to an alternating sign between sub-lattices, in contrast to a ferromagnetic system. Naturally, questions arise regarding how fast and, simultaneously, how robustly the magnetization can be switched by external stimuli, e.g., magnetic field and spin current. First, the exploitation of ultrafast precessional motion of magnetization in antiferromagnetic oxide has been studied intensively. Regarding robustness, the so-called inertia-driven switching scenario has been generally accepted as the switching mechanism in antiferromagnet system. However, in order to understand the switching dynamics in a canted antiferromagnet, excited by magnetic field, accurate equation of motion and corresponding interpretation are necessary. Here, we re-investigate the inertia-driven switching process, triggered by the strict phase matching between effective driving field, dh/dt, and antiferromagnetic order parameters, l. Such theoretical approaches make it possible to observe the static parameters of an antiferromagnet, hosting Dzyaloshinskii–Moriya (DM) interaction. Indeed, we estimate successfully static parameters, such as DM, exchange, and anisotropy energies, from dynamical behaviour in YFeO3, studied using terahertz time-domain spectroscopy.

show abstract

“…These knowledge-based representations provide a declaration of our current "understanding of medicine", from the perspectives of biomedical researchers and health care providers. Disease similarity and relatedness declared in such ontologies are complementary to data-driven analyses, which are agnostic to current beliefs about disease relationships (45)(46)(47). Thus, these ontologies provide a third vantage point to quantify disease similarity.…”

Section: Introductionmentioning

confidence: 99%

Integrated molecular, clinical, and ontological analysis identifies overlooked disease relationships

Vashisht

Vallania

et al. 2017

Preprint

View full text Add to dashboard Cite

We jointly examined gene-expression and electronic health record data for 104 diseases to identify unbiased clusters of molecularly and clinically related diseases. We performed gene expression meta-analysis of 41,000 samples and computed diseases' clinical profile similarity using 2 million patient records. Based on molecular data, we observed autoimmune diseases clustering with their specific infectious triggers and brain disorders clustering by disease class. In contrast, the electronic health records based clinical profiles clustered diseases according to the similarity of their initial manifestation and later complications. Our integrated molecular and clinical analysis identified diseases with under-appreciated, therapeutically actionable relationships, such as between myositis and interstitial cystitis. This global understanding of relationships between diseases has potential to identify disease causing mechanisms and offer novel therapeutic targets.

show abstract

Antiferromagnetic Spin Wave Field-Effect Transistor

Cited by 119 publications

References 31 publications

Excitation of magnon spin photocurrents in antiferromagnetic insulators

Excitation of magnon spin photocurrents in antiferromagnetic insulators

Field-driven dynamics and time-resolved measurement of Dzyaloshinskii-Moriya torque in canted antiferromagnet YFeO3

Integrated molecular, clinical, and ontological analysis identifies overlooked disease relationships

Contact Info

Product

Resources

About