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Spin pumping at terahertz nutation resonances
. This could offer a useful experimental signature for identifying such nutation resonancesWe investigate spin pumping current injected by the nutation resonances pumping current between the normal precession and the nu...
Condensed matter physics (including formerly solid state physics, supercond.)
- 2021 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Influence of intersublattice coupling on the terahertz nutation spin dynamics in antiferromagnets
Spin-nutation resonance has been well explored in one-sublattice ferromagnets. Here, we investigate the spin nutation in two-sublattice antiferromagnets as well as, for comparison, ferrimagnets with inter- and intrasub lattice n...
Condensed matter physics (including formerly solid state physics, supercond.)
- 2021 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
VLBI observations of nutation, its geophysical excitations and determination of some Earth model parameters
Resonant period of retrograde Free Core Nutation depend on the flattening of the outer fluid core. Nutation itself is also partially affected by geophysical excitations. Taking into account these excitations, the paper attempts to d...
BN - Astronomie a nebeská mechanika, astrofyzika
- 2008 •
- D
Rok uplatnění
D - Stať ve sborníku
Resonance effects and possible excitation of Free Core Nutation
It is demonstrated that the atmospheric and oceanic excitation is capable of exciting the observed nutation close to the resonance due to the fluid outer core of the Earth....
BN - Astronomie a nebeská mechanika, astrofyzika
- 2006 •
- D
Rok uplatnění
D - Stať ve sborníku
Quasi-diurnal atmospheric and oceanic excitation of nutation
It is shown that the atmospheric and oceanic effects are capable of exciting free core nutation; both its amplitude and phase are compatible with the observed motion. Annual and semi-annual geophysical excitations are of the order of 100 mic...
BN - Astronomie a nebeská mechanika, astrofyzika
- 2007 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Development of the theory and practice of nutation determination
Orientation of the World Geodetic System is developped from the results of the commission IERS (International Earth Rotation Service). It is important to know accurate parameters determining the position of the Earth in the space. Euler's idea about ...
DE - Zemský magnetismus, geodesie, geografie
- 2006 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Study nof atmospheric and oceanic excitations in the motion of Earth's spin axis in space
The atmospheric and oceanic excitations of nutation are studied. Apparent changes of period and quality factor of Free Core Nutation are found, and it is concluded that they are probably caused by other phenomena than the geophysica...
BN - Astronomie a nebeská mechanika, astrofyzika
- 2010 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Free core nutation: direct observations and resonance effects
Based on the combined solution of the observed celestial pole offsets by VLBI and GPS, a temporary change of the period of Free Core Nutation is found. However, from the observed forced nutation terms follows that this period is ver...
BN - Astronomie a nebeská mechanika, astrofyzika
- 2005 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Resonant period of free core nutation - its observed changes and excitations
Resonant period of Free Core Nutation, given by the internal structure of the Earth, is found to be very stable in time. Its apparent observed changes can be ascribed to additional excitations provided by motions of the outer layers of the E...
DE - Zemský magnetismus, geodesie, geografie
- 2006 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Combined VLBI/GPS series of precession-nutation and comparison with IAU2000 model.
Using the combination of VLBI-based celestial pole offset rates is presented, and compared with the new IAU2000 model of precession-nutation. The new model is shown to agree with the combined solution at the level of present observational ac...
BN - Astronomie a nebeská mechanika, astrofyzika
- 2003 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
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