Outputs (9)

Reconfigurable and self-biased magnonic metamaterials (2020)
Journal Article
Haldar, A., & Adeyeye, A. O. (2020). Reconfigurable and self-biased magnonic metamaterials. Journal of Applied Physics, 128(24), Article 240902. https://doi.org/10.1063/5.0033254

In magnonics, magnetic waves and oscillations are exploited for signal and information processing at microwave frequencies. A magnonic metamaterial is employed to configure different microwave bands by spatial engineering of magnetizations using diff... Read More about Reconfigurable and self-biased magnonic metamaterials.

Platinum composition dependence of spin-orbit torque in (Fe0.8Mn0.2)1−xPtx single-layer ferromagnet (2020)
Journal Article
Luo, Z., Lu, L., Xie, H., Xu, Y., Chen, X., Talapatra, A., Adeyeye, A. O., Hua, Y., Li, X., & Wu, Y. (2020). Platinum composition dependence of spin-orbit torque in (Fe0.8Mn0.2)1−xPtx single-layer ferromagnet. Applied Physics Letters, 117(17), Article 172402. https://doi.org/10.1063/5.0023957

We have investigated the effect of the Pt composition on the spin–orbit torque in a (Fe0.8Mn0.2)1xPtx single-layer ferromagnet. We observed that while the field-like torque decreases and even reverses sign with increasing the Pt composition, the damp... Read More about Platinum composition dependence of spin-orbit torque in (Fe0.8Mn0.2)1−xPtx single-layer ferromagnet.

Linear chains of nanomagnets: engineering the effective magnetic anisotropy (2020)
Journal Article
Talapatra, A., & Adeyeye, A. (2020). Linear chains of nanomagnets: engineering the effective magnetic anisotropy. Nanoscale, 12(40), 20933-20944. https://doi.org/10.1039/d0nr06026g

This paper investigates the control of effective magnetic anisotropy in Permalloy linear chain arrays, achieved by tuning the symmetry arrangement of the ellipsoidal nanomagnets and the film thickness. When the ellipsoidal nanomagnets are coupled alo... Read More about Linear chains of nanomagnets: engineering the effective magnetic anisotropy.

Non-uniform along thickness spin excitations in magnetic vortex-state nanodots (2020)
Journal Article
Kakazei, G., Guslienko, K., Verba, R., Ding, J., Liu, X., & Adeyeye, A. (2020). Non-uniform along thickness spin excitations in magnetic vortex-state nanodots. Low Temperature Physics, 46(8), Article 863. https://doi.org/10.1063/10.0001555

We summarize our experimental findings in the arrays of Ni80Fe20 circular nanodots with diameter 300 nm and thickness 20 nm ≤ L ≤ 100 nm, probed by broadband ferromagnetic resonance spectroscopy in the absence of external magnetic field. Spin excitat... Read More about Non-uniform along thickness spin excitations in magnetic vortex-state nanodots.

Effect of exchange and dipolar interlayer interactions on the magnonic band structure of dense Fe/Cu/Py nanowires with symmetric and asymmetric layer widths (2020)
Journal Article
Gubbiotti, G., Zhou, X., Adeyeye, A., Varvaro, G., & Kostylev, M. (2020). Effect of exchange and dipolar interlayer interactions on the magnonic band structure of dense Fe/Cu/Py nanowires with symmetric and asymmetric layer widths. Physical Review B, 101(22), Article 224431. https://doi.org/10.1103/physrevb.101.224431

We present a systematic experimental and theoretical investigation of the magnonic band structure in dense arrays of both asymmetric and symmetric cross-section trilayered Fe(10 nm)/Cu( t )/Py(10 nm) nanowires (NWs). The Cu spacer thickness ( t ) is... Read More about Effect of exchange and dipolar interlayer interactions on the magnonic band structure of dense Fe/Cu/Py nanowires with symmetric and asymmetric layer widths.

Constraints on the Velocity and Spin Dependent Exotic Interaction at the Micrometer Range (2020)
Journal Article
Ding, J., Wang, J., Zhou, X., Liu, Y., Sun, K., Adeyeye, A. O., Fu, H., Ren, X., Li, S., Luo, P., Lan, Z., Yang, S., & Luo, J. (2020). Constraints on the Velocity and Spin Dependent Exotic Interaction at the Micrometer Range. Physical Review Letters, 124(16), Article 161801. https://doi.org/10.1103/physrevlett.124.161801

We report on an experimental test of the velocity and spin dependent exotic interaction that can be mediated by new light bosons. The interaction is searched by measuring the force between a gold sphere and a microfabricated magnetic structure using... Read More about Constraints on the Velocity and Spin Dependent Exotic Interaction at the Micrometer Range.

Microwave assisted gating of spin wave propagation (2020)
Journal Article
Haldar, A., & Adeyeye, A. O. (2020). Microwave assisted gating of spin wave propagation. Applied Physics Letters, 116(16), Article 162403. https://doi.org/10.1063/5.0006945

Magnonics is an emerging research area where magnons or spin waves are used as a medium of information processing. Efficient manipulation/gating of magnons on-chip is crucial for realization of logic circuitry and device integration. Here, we show a... Read More about Microwave assisted gating of spin wave propagation.

Magnetic Tunability of Permalloy Artificial Spin Ice Structures (2020)
Journal Article
Talapatra, A., Singh, N., & Adeyeye, A. (2020). Magnetic Tunability of Permalloy Artificial Spin Ice Structures. Physical Review Applied, 13(1), Article 014034. https://doi.org/10.1103/physrevapplied.13.014034

This paper reports tunable Ni80Fe20 artificial spin ice structures of various geometrical lattice arrangements as a function of film thickness. We achieve the magnetic tunability by three distinct methods namely, geometrical arrangements of nanomagne... Read More about Magnetic Tunability of Permalloy Artificial Spin Ice Structures.

Direct mapping of spin wave modes of individual Ni80Fe20 nanorings (2020)
Journal Article
Tian, C., Chaudhuri, U., Singh, N., & Adeyeye, A. O. (2020). Direct mapping of spin wave modes of individual Ni80Fe20 nanorings. Nanotechnology, 31(14), Article 145714. https://doi.org/10.1088/1361-6528/ab662f

Ferromagnetic nanorings exhibit tunable magnetic states with unique magnetization reversal processes and dynamic behavior that can be exploited in data storage and magnonic devices. Traditionally, probing the magnetization dynamics of individual ferr... Read More about Direct mapping of spin wave modes of individual Ni80Fe20 nanorings.