Zobrazeno 1 - 10
of 252
pro vyhledávání: '"Kamra, Akashdeep"'
Publikováno v:
Nature Communications 15, 4000 (2024)
Magnetic order typically emerges due to the short-range exchange interaction between the constituent electronic spins. Recent discoveries have found a crucial role for spin-phonon coupling in various phenomena from optical ultrafast magnetization swi
Externí odkaz:
http://arxiv.org/abs/2405.09246
Nonreciprocal current responses arise in a broad range of systems, from magnons and phonons to supercurrents, due to an interplay between spatial and temporal symmetry breakings. These find applications in devices, such as circulators and rectifiers,
Externí odkaz:
http://arxiv.org/abs/2405.05306
Autor:
Siegl, Luise, Schlitz, Richard, Youssef, Jamal Ben, Runge, Christian, Kamra, Akashdeep, Legrand, William, Huebl, Hans, Lammel, Michaela, Goennenwein, Sebastian T. B.
State tomography allows to characterize quantum states, and was recently applied to reveal the dynamic magnetization state of a parametrically driven magnet. The identification of non-classical states, such as squeezed states, relies on a careful ana
Externí odkaz:
http://arxiv.org/abs/2404.17327
Recently introduced magnetic materials called altermagnets (AM) feature zero net magnetization but a momentum dependent magnetic exchange field, which can have intriguing implications when combined with superconductivity. In our work, we use the quas
Externí odkaz:
http://arxiv.org/abs/2403.10456
Publikováno v:
Phys. Rev. B 109, 174410 (2024)
N\'eel ordered antiferromagnets exhibit two-mode squeezing such that their ground state is a nonclassical superposition of magnon Fock states. Here we theoretically demonstrate that antiferromagnets can couple to spin qubits via direct dispersive int
Externí odkaz:
http://arxiv.org/abs/2402.13203
Autor:
Caso, Diego, García-Prieto, Ana, Sebastiani-Tofano, Eugenia, Kamra, Akashdeep, Hernández, Cayetano, Prieto, Pilar, Aliev, Farkhad G.
Ferromagnetic/Antiferromagnetic (FM/AFM) bilayers dynamics have been a recent topic of interest due to the interaction occurring at the interface, where the magnetic moments of the AFM can be imprinted into the FM, and the exchange bias field can aff
Externí odkaz:
http://arxiv.org/abs/2402.10292
Superconducting spin valves based on antiferromagnet/superconductor/antiferromagnet heterostructures
Autor:
Bobkov, G. A., Gordeeva, V. M., Kamra, Lina Johnsen, Chourasia, Simran, Bobkov, A. M., Kamra, Akashdeep, Bobkova, I. V.
Publikováno v:
Phys. Rev. B 109, 184504 (2024)
Proximity effect at superconductor/antiferromagnet (S/AF) interfaces, which manifests itself as generation of Neel-type triplet correlations, leads to sensitivity of the superconducting critical temperature to the mutual orientation of the AF Neel ve
Externí odkaz:
http://arxiv.org/abs/2401.16935
Autor:
Schlitz, Richard, Grammer, Matthias, Wimmer, Tobias, Gückelhorn, Janine, Flacke, Luis, Goennenwein, Sebastian T. B., Gross, Rudolf, Huebl, Hans, Kamra, Akashdeep, Althammer, Matthias
Publikováno v:
Phys. Rev. Lett. 132, 256701 (2024)
Converting angular momentum between different degrees of freedom within a magnetic material results from a dynamic interplay between electrons, magnons and phonons. This interplay is pivotal to implementing spintronic device concepts that rely on spi
Externí odkaz:
http://arxiv.org/abs/2311.05290
Publikováno v:
Phys. Rev. B 109, L201408 (2024)
The use of cavity quantum electrodynamical effects, i.e., of vacuum electromagnetic fields, to modify material properties in cavities has rapidly gained popularity and interest in the last few years. However, there is still a scarcity of general resu
Externí odkaz:
http://arxiv.org/abs/2311.00183
Autor:
Kamra, Lina Johnsen, Kamra, Akashdeep
Publikováno v:
Europhysics News 54, 24-27 (2023)
Magnets are used in electronics to store and read information. A magnetic moment is rotated to a desired direction, so that information can later be retrieved by reading this orientation. Controlling the moment via electric currents causes resistive
Externí odkaz:
http://arxiv.org/abs/2309.12836