Zobrazeno 1 - 10
of 814
pro vyhledávání: '"Alexander, J E"'
Autor:
L'vov, Victor S., Pomyalov, Anna, Nazarenko, Sergey V., Bozhko, Dmytro A., Kreil, Alexander J. E., Hillebrands, Burkard, Serga, Alexander A.
Publikováno v:
Physical Review B 109, 014301 (2024)
We consider flux equilibrium in dissipative nonlinear wave systems subject to external energy pumping. In such systems, the elementary excitations, or quasiparticles, can create a Bose-Einstein condensate. We develop a theory on the Bose-Einstein con
Externí odkaz:
http://arxiv.org/abs/2311.05315
Autor:
Schweizer, Matthias R., Kreil, Alexander J. E., von Freymann, Georg, Hillebrands, Burkard, Serga, Alexander A.
Publikováno v:
Journal of Applied Physics 132, 183908 (2022)
Coherent wave states such as Bose-Einstein condensates (BECs), which spontaneously form in an overpopulated magnon gas even at room temperature, have considerable potential for wave-based computing and information processing at microwave frequencies.
Externí odkaz:
http://arxiv.org/abs/2208.13507
Autor:
Bao, Jin-Ke, Malliakas, Christos D., Zhang, Chi, Cai, Songting, Chen, Haijie, Rettie, Alexander J. E., Fisher, Brandon L., Chung, Duck Young, Dravid, Vinayak P., Kanatzidis, Mercouri G.
Publikováno v:
Chemistry of Materials 33(6), 2155-2164 (2021)
Layered heterostructure materials with two different functional building blocks can teach us about emergent physical properties and phenomena arising from interactions between the layers. We report the intergrowth compounds KLa$M$$_{1-x}$Te$_{4}$ ($M
Externí odkaz:
http://arxiv.org/abs/2011.11068
Autor:
Mollaei, Masoud S. M., van Leeuwen, Carel C., Raaijmakers, Alexander J. E., Simovski, Constantin
Theory of a high impedance coil (HIC) - a cable loop antenna with a modified shield - is discussed comprehensively for both in transmitting and receiving regimes. Understanding a weakness of the previously reported HIC in transmitting regime, we sugg
Externí odkaz:
http://arxiv.org/abs/2002.03903
Autor:
Kreil, Alexander J. E., Musiienko-Shmarova, Halyna Yu., Frey, Pascal, Pomyalov, Anna, L'vov, Victor S., Melkov, Gennadii A., Serga, Alexander A., Hillebrands, Burkard
Publikováno v:
Physical Review B 104, 144414 (2021)
The alternating current (ac) Josephson effect in a time-independent spatially-inhomogeneous setting is manifested by the occurrence of Josephson oscillations - periodic macroscopic phase-induced collective motions of the quantum condensate. So far, t
Externí odkaz:
http://arxiv.org/abs/1911.07802
Autor:
Kreil, Alexander J. E., Musiienko-Shmarova, Halyna Yu., Bozhko, Dmytro A., Pomyalov, Anna, L'vov, Victor S., Eggert, Sebastian, Serga, Alexander A., Hillebrands, Burkard
Publikováno v:
Physical Review B 100, 020406 (2019)
We report the experimental realization of a space-time crystal with tunable periodicity in time and space in the magnon Bose-Einstein Condensate (BEC), formed in a room-temperature Yttrium Iron Garnet (YIG) film by radio-frequency space-homogeneous m
Externí odkaz:
http://arxiv.org/abs/1811.05801
Autor:
Bozhko, Dmytro A., Kreil, Alexander J. E., Musiienko-Shmarova, Halyna Yu., Serga, Alexander A., Pomyalov, Anna, L'vov, Victor S., Hillebrands, Burkard
Publikováno v:
Nature Communications 10:2460 (2019)
The term supercurrent relates to a macroscopic dissipation-free collective motion of a quantum condensate and is commonly associated with such famous low-temperature phenomena as superconductivity and superfluidity. Another type of motion of quantum
Externí odkaz:
http://arxiv.org/abs/1808.07407
Autor:
Kreil, Alexander J. E., Bozhko, Dmytro A., Musiienko-Shmarova, Halyna Yu., L'vov, Victor S., Pomyalov, Anna, Hillebrands, Burkard, Serga, Alexander A.
Publikováno v:
Phys. Rev. Lett. 121, 077203 (2018)
Evolution of an overpopulated gas of magnons to a Bose-Einstein condensate and excitation of a magnon supercurrent, propelled by a phase gradient in the condensate wave function, can be observed at room-temperature by means of the Brillouin light sca
Externí odkaz:
http://arxiv.org/abs/1803.11548
Autor:
Hurshkainen, Anna A., Steensma, Bart, Glybovski, Stanislav B., Voogt, Ingmar J., Melchakova, Irina V., Belov, Pavel A., Berg, Cornelis A. T. van den, Raaijmakers, Alexander J. E.
In this contribution we present numerical and experimental results of a parametric quantitative study of radiative dipole antennas in a phased array configuration for efficient body magnetic resonance imaging at 7T via parallel transmission. For magn
Externí odkaz:
http://arxiv.org/abs/1710.02399
Autor:
Eijbersen, Michael A., Steensma, Bart R., van den Berg, Cornelis A. T., Raaijmakers, Alexander J. E.
Publikováno v:
Magnetic Resonance in Medicine; Nov2024, Vol. 92 Issue 5, p2246-2260, 15p
