Zobrazeno 1 - 10
of 480
pro vyhledávání: '"Dhesi, S."'
The effect of thermal surface cleaning on the Gilbert damping, $\alpha$, of yttrium iron garnet (YIG), before capping with a metallic layer, has been investigated. Our results show that $\alpha$ is strongly effected by relatively mild annealing condi
Externí odkaz:
http://arxiv.org/abs/2407.16005
Autor:
Amin, O. J., Din, A. Dal, Golias, E., Niu, Y., Zakharov, A., Fromage, S. C., Fields, C. J. B., Heywood, S. L., Cousins, R. B., Krempasky, J., Dil, J. H., Kriegner, D., Kiraly, B., Campion, R. P., Rushforth, A. W., Edmonds, K. W., Dhesi, S. S., Šmejkal, L., Jungwirth, T., Wadley, P.
Nanoscale detection and control of the magnetic order underpins a broad spectrum of fundamental research and practical device applications. The key principle involved is the breaking of time-reversal ($\cal{T}$) symmetry, which in ferromagnets is gen
Externí odkaz:
http://arxiv.org/abs/2405.02409
Autor:
Christensen, D. V., Staub, U., Devidas, T. R., Kalisky, B., Nowack, K. C., Webb, J. L., Andersen, U. L., Huck, A., Broadway, D. A., Wagner, K., Maletinsky, P., van der Sar, T., Du, C. R., Yacoby, A., Collomb, D., Bending, S., Oral, A., Hug, H. J., Mandru, A. -O., Neu, V., Schumacher, H. W., Sievers, S., Saito, H., Khajetoorians, A. A., Hauptmann, N., Baumann, S., Eichler, A., Degen, C. L., McCord, J., Vogel, M., Fiebig, M., Fischer, P., Hierro-Rodriguez, A., Finizio, S., Dhesi, S. S., Donnelly, C., Büttner, Felix, Kfir, O., Hu, W., Zayko, S., Eisebitt, S., Pfau, B., Frömter, R., Kläui, M., Yasin, F. S., McMorran, B. J., Seki, S., Yu, X., Lubk, A., Wolf, D., Pryds, N., Makarov, D., Poggio, M.
Considering the growing interest in magnetic materials for unconventional computing, data storage, and sensor applications, there is active research not only on material synthesis but also characterisation of their properties. In addition to structur
Externí odkaz:
http://arxiv.org/abs/2401.04793
Autor:
Bufaiçal, L., Veiga, L. S. I., Mardegan, J. R. L., Pohlmann, T., Francoual, S., Dhesi, S. S., Fontes, M. B., Bittar, E. M.
Publikováno v:
Journal of Magnetism and Magnetic Materials 587, 171276 (2023)
Here, we report on the structural, electronic, and magnetic properties of a polycrystalline sample of the LaCaCoIrO$_6$ double-perovskite investigated by means of synchrotron x-ray powder diffraction, x-ray absorption spectroscopy, and x-ray magnetic
Externí odkaz:
http://arxiv.org/abs/2310.01114
Autor:
Gambardella, P., Dhesi, S. S., Gardonio, Sandra, Grazioli, Cesare, Ohresser, P., Carbone, Carlo
X-ray absorption spectroscopy (XAS) and x-ray magnetic circular dichroism (XMCD) have been used to study transition metal impurities on K and Na films. The multiplet structure of the XAS spectra indicates that Fe, Co, and Ni have localized atomic gro
Externí odkaz:
http://arxiv.org/abs/2307.12433
Autor:
Mardegan, J. R. L., Veiga, L. S. I., Pohlmann, T., Dhesi, S. S., Francoual, S., Jesus, J. R., Macchiutti, C., Bittar, E. M., Bufaiçal, L.
Publikováno v:
Physical Review B 107, 214427 (2023)
Here we present a detailed investigation of the Co and Ir local electronic structures in La1.5A0.5CoIrO6 (A = Ba, Ca) compounds in order to unravel the orbital hybridization mechanism in these CoIr-based double perovskites. Our results of x-ray powde
Externí odkaz:
http://arxiv.org/abs/2306.10883
Autor:
Hariki, A., Din, A. Dal, Amin, O. J., Yamaguchi, T., Badura, A., Kriegner, D., Edmonds, K. W., Campion, R. P., Wadley, P., Backes, D., Veiga, L. S. I., Dhesi, S. S., Springholz, G., Šmejkal, L., Výborný, K., Jungwirth, T., Kuneš, J.
Publikováno v:
Phys. Rev. Lett. 132, 176701 (2024)
Altermagnetism is a recently identified magnetic symmetry class combining characteristics of conventional collinear ferromagnets and antiferromagnets, that were regarded as mutually exclusive, and enabling phenomena and functionalities unparalleled i
Externí odkaz:
http://arxiv.org/abs/2305.03588
Autor:
Amin, O. J., Poole, S. F., Reimers, S., Barton, L. X., Maccherozzi, F., Dhesi, S. S., Novák, V., Křížek, F., Chauhan, J. S., Campion, R. P., Rushforth, A. W., Jungwirth, T., Tretiakov, O. A., Edmonds, K. W., Wadley, P.
Topologically protected magnetic textures, such as skyrmions, half-skyrmions (merons) and their antiparticles, constitute tiny whirls in the magnetic order. They are promising candidates for information carriers in next-generation memory devices, as
Externí odkaz:
http://arxiv.org/abs/2207.00286
Autor:
Gu, X., Chen, C., Wei, W. S., Liu, J. Y., Du, X., Pei, D., Zhou, J. S., Xu, R. Z., Yin, Z. X., Zhao, W. X., Li, Y. D., Jozwiak, C., Bostwick, A., Rotenberg, E., Backes, D., Veiga, L. S. I., Dhesi, S., Hesjedal, T., van der Laan, G., Du, H. F., Jiang, W. J., Qi, Y. P., Li, G., Shi, W. J., Liu, Z. K., Chen, Y. L., Yang, L. X.
Crystal geometry can greatly influence the emergent properties of quantum materials. As an example, the kagome lattice is an ideal platform to study the rich interplay between topology, magnetism, and electronic correlation. In this work, combining h
Externí odkaz:
http://arxiv.org/abs/2203.10542
Autor:
Bommanaboyena, S. P., Backes, D., Veiga, L. S. I., Dhesi, S. S., Niu, Y. R., Sarpi, B., Denneulin, T., Kovacs, A., Mashoff, T., Gomonay, O., Sinova, J., Everschor-Sitte, K., Schönke, D., Reeve, R. M., Kläui, M., Elmers, H. -J., Jourdan, M.
Publikováno v:
Nature Commun. 12, 6539 (2021)
In antiferromagnetic spintronics, the read-out of the staggered magnetization or Neel vector is the key obstacle to harnessing the ultra-fast dynamics and stability of antiferromagnets for novel devices. Here, we demonstrate strong exchange coupling
Externí odkaz:
http://arxiv.org/abs/2106.02333