Název:	Electric field control of magnons in magnetic thin films: Ab initio predictions for two-dimensional metallic heterostructures
Autoři:	Marmodoro, Alberto Mankovsky, Sergiy Ebert, Hubert Minár, Jan Šipr, Ondřej
Citace zdrojového dokumentu:	MARMODORO, A. MANKOVSKY, S. EBERT, H. MINÁR, J. ŠIPR, O. Electric field control of magnons in magnetic thin films: Ab initio predictions for two-dimensional metallic heterostructures. Physical Review B, 2022, roč. 105, č. 17, s. nestránkováno. ISSN: 2469-9950
Datum vydání:	2022
Nakladatel:	American Physical Society
Typ dokumentu:	článek article
URI:	2-s2.0-85130322100 http://hdl.handle.net/11025/51297
ISSN:	2469-9950
Klíčová slova v dalším jazyce:	STONER EXCITATION SPECTRUMEXCHANGE INTERACTIONSSPIN-WAVESSUSCEPTIBILITYENERGYTEMPERATURE
Abstrakt v dalším jazyce:	We explore possibilities for control of magnons in two-dimensional heterostructures by an external electric field acting across a dielectric barrier. By performing ab initio calculations for a Fe monolayer and Fe bilayer, both suspended in vacuum and deposited on Cu(001), we demonstrate that external electric field can significantly modify magnon lifetimes and that these changes can be related to field-induced changes in layer-resolved Bloch spectral functions. For systems with more magnon dispersion branches, the gap between high- and low-energy eigenmodes varies with the external field. These effects are strongly influenced by the substrate. Considerable variability in how the magnon spectra are sensitive to the external electric field can be expected, depending on the substrate and on the thickness of the magnetic layer.
Práva:	Plný text není přístupný. © American Physical Society
Vyskytuje se v kolekcích:	Články / Articles (RAM) OBD

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