All Outputs (7)

Optical receiver with helicity-dependent magnetization reversal (2018)
Journal Article
Azim, Z. A., Ostler, T. A., Xu, C., & Roy, K. (2019). Optical receiver with helicity-dependent magnetization reversal. IEEE Transactions on Magnetics, 55(1), Article 4400206. https://doi.org/10.1109/TMAG.2018.2878008

In this paper, we propose helicity-dependent switching (HDS) of magnetization in Co/Pt for an energy efficient optical receiver. Designing a low-power optical receiver for optical-to-electrical signal conversion has proven to be very challenging. Cur... Read More about Optical receiver with helicity-dependent magnetization reversal.

Ultrafast double magnetization switching in GdFeCo with two picosecond-delayed femtosecond pump pulses (2018)
Journal Article
Atxitia, U., & Ostler, T. A. (2018). Ultrafast double magnetization switching in GdFeCo with two picosecond-delayed femtosecond pump pulses. Applied physics letters, 113(6), Article 062402. https://doi.org/10.1063/1.5044272

The recently discovered thermally induced magnetization switching (TIMS) induced by single femtosecond laser pulses in ferrimagnetic GdFeCo alloys proceeds on the picosecond time-scale. The rate at which data can be changed for use of TIMS in technol... Read More about Ultrafast double magnetization switching in GdFeCo with two picosecond-delayed femtosecond pump pulses.

Roles of heating and helicity in ultrafast all-optical magnetization switching in TbFeCo (2018)
Journal Article
Lu, X., Zou, X., Hinzke, D., Liu, T., Wang, Y., Cheng, T., …Xu, Y. (2018). Roles of heating and helicity in ultrafast all-optical magnetization switching in TbFeCo. Applied physics letters, 113(3), Article 032405. https://doi.org/10.1063/1.5036720

Using the time-resolved magneto-optical Kerr effect method, helicity-dependent all-optical magnetization switching (HD-AOS) is observed in ferrimagnetic TbFeCo films. Our results reveal the individual roles of the thermal and nonthermal effects after... Read More about Roles of heating and helicity in ultrafast all-optical magnetization switching in TbFeCo.

Probability distribution of substituted titanium in RT12 (R = Nd and Sm; T = Fe and Co) Structures (2018)
Journal Article
Skelland, C., Ostler, T., Westmoreland, S. C., Evans, R. F., Chantrell, R. W., Yano, M., …Hrkac, G. (2018). Probability distribution of substituted titanium in RT12 (R = Nd and Sm; T = Fe and Co) Structures. IEEE Transactions on Magnetics, 54(11), Article 2103405. https://doi.org/10.1109/TMAG.2018.2832603

We investigated the atomic fill site probability distributions across supercell structures of RT12-x Ti (R = Nd and Sm; T = Fe and Co). We use a combined molecular dynamics and Boltzmann distribution approach to extrapolate the probability distributi... Read More about Probability distribution of substituted titanium in RT12 (R = Nd and Sm; T = Fe and Co) Structures.

Competition of lattice and spin excitations in the temperature dependence of spin-wave properties (2018)
Journal Article
Di Gennaro, M., Miranda, A. L., Ostler, T. A., Romero, A. H., & Verstraete, M. J. (2018). Competition of lattice and spin excitations in the temperature dependence of spin-wave properties. Physical Review B, 97(21), Article 214417. https://doi.org/10.1103/PhysRevB.97.214417

The interplay of magnons and phonons can induce strong temperature variations in the magnetic exchange interactions, leading to changes in the magnetothermal response. This is a central mechanism in many magnetic phenomena, and in the new field of Sp... Read More about Competition of lattice and spin excitations in the temperature dependence of spin-wave properties.

Site-Resolved Contributions to the Magnetic-Anisotropy Energy and Complex Spin Structure of Fe/MgO Sandwiches (2018)
Journal Article
Cuadrado, R., Oroszlány, L., Deák, A., Ostler, T. A., Meo, A., Chepulskii, R. V., …Chantrell, R. W. (2018). Site-Resolved Contributions to the Magnetic-Anisotropy Energy and Complex Spin Structure of Fe/MgO Sandwiches. Physical Review Applied, 9(5), Article 054048. https://doi.org/10.1103/PhysRevApplied.9.054048

Fe/MgO-based magnetic tunnel junctions are among the most promising candidates for spintronic devices due to their high thermal stability and high tunneling magnetoresistance. Despite its apparent simplicity, the nature of the interactions between th... Read More about Site-Resolved Contributions to the Magnetic-Anisotropy Energy and Complex Spin Structure of Fe/MgO Sandwiches.

A multiscale model of the effect of Ir thickness on the static and dynamic properties of Fe/Ir/Fe films (2018)
Journal Article
Cuadrado, R., Oroszlány, L., Szunyogh, L., Hrkac, G., Chantrell, R. W., & Ostler, T. A. (2018). A multiscale model of the effect of Ir thickness on the static and dynamic properties of Fe/Ir/Fe films. Scientific reports, 8(1), Article 3879. https://doi.org/10.1038/s41598-018-21934-5

The complex magnetic properties of Fe/Ir/Fe sandwiches are studied using a hierarchical multi-scale model. The approach uses first principles calculations and thermodynamic models to reveal the equilibrium spinwave, magnetization and dynamic demagnet... Read More about A multiscale model of the effect of Ir thickness on the static and dynamic properties of Fe/Ir/Fe films.