Temat: 32.10.Fn - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Precise Measurements of the Hyperfine Structure of the Levels Belonging to the Terms $3d^{5}4s$ $\text{}^{5}G$ and $\text{}^{5}P$ in $Cr(I)$
Autorzy:: Krzykowski, A.
Głowacki, P.
Jarosz, A.
Powiązania:: https://bibliotekanauki.pl/articles/1419711.pdf
Data publikacji:: 2012-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 32.10.Fn
Opis:: The hyperfine structure intervals for the electronic levels belonging to the terms $3 d^5 (\text{}^4G) 4s a^5G$ and $a^5P$ of a chromium 53 atom were precisely measured with the use of the method of atomic beam magnetic resonance detected by laser induced resonance fluorescence. Magnetic-dipole and electric-quadrupole hyperfine interaction constants (A and B, respectively) for the electronic levels of interest were determined with the accuracy of a few kHz. The high precision of measurements also enabled an estimation of the octupole-coupling constants (C).
Źródło:: Acta Physica Polonica A; 2012, 122, 1; 78-81
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: NIST Cesium Fountains - Current Status and Future Prospects
Autorzy:: Jefferts, S.
Heavner, T.
Parker, T.
Shirley, J.
Powiązania:: https://bibliotekanauki.pl/articles/1814049.pdf
Data publikacji:: 2007-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 06.20.Fn
32.30.Bv
32.30.-r
32.10.Fn
32.80.Pj
Opis:: We review the current status of the U.S. Primary Frequency Standard, NIST-F1. NIST-F1 is a laser-cooled cesium fountain based frequency standard with an inaccuracy of less thanδ f/f<5×$10^{-16}$; limited mainly by the radiation field in the room-temperature fountain (blackbody shift). NIST-F1 is one of the best cesium fountains currently contributing to international atomic time, but has reached a point that it is impractical to improve its accuracy substantially. Therefore we are building a new fountain, imaginatively named NIST-F2, with a cryogenic (77 K) Ramsey interrogation zone that lowers the blackbody shift by several orders of magnitude. NIST-F2 is currently undergoing final assembly, and we will discuss our planned (hoped for) performance, which includes frequency inaccuracy ofδ f/f<1×$10^{-16}$.
Źródło:: Acta Physica Polonica A; 2007, 112, 5; 759-767
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Anisotropy of g_{eff} Factor for Ni_{50}Mn_{35.5}In_{14.5} Heusler Alloy
Autorzy:: Dubiel, Ł.
Wal, A.
Stefaniuk, I.
Powiązania:: https://bibliotekanauki.pl/articles/1398339.pdf
Data publikacji:: 2017-07
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 76.30.-v
75.20.En
32.10.Fn
Opis:: In this work electron magnetic resonance (EMR) spectra of off-stoichiometric $Ni_{50}Mn_{35.5}In_{14.5}$ Heusler alloy ribbons obtained by melt-spinning method were measured. The EMR measurements were performed on the X-band (9.36 GHz) spectrometer. Angle dependences were registered for three orientations of sample, with the use of uniaxial goniometer at 300. The results exhibited magnetic anisotropy and were used for calculating the principal values of g tensor.
Źródło:: Acta Physica Polonica A; 2017, 132, 1; 91-93
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Entropy associated with local stabilization of the pulse area in multilevel atomic media
Autorzy:: Alhasan, A.
Powiązania:: https://bibliotekanauki.pl/articles/1050884.pdf
Data publikacji:: 2018-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 02.50.-r
42.50.Gy
42.50.Hz
32.80.Qk
32.10.Fn
Opis:: This paper provides an entropy analysis to resonant and short pulses propagation in four-level atomic medium. As an example, we take D_{1} transition in rubidium ^{87}Rb atoms including hyperfine structure. We show how to construct the time dependent Bloch-metric for each optical transition in the Liouville space. Furthermore, we attempt to relate local stabilization of the pulse area to the distribution of the space-entropy.
Źródło:: Acta Physica Polonica A; 2018, 133, 5; 1205-1214
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 5.

Tytuł:: EPR Study of Gamma Irradiated Cholestanone Single Crystal
Autorzy:: Caliskan, B.
Powiązania:: https://bibliotekanauki.pl/articles/1206732.pdf
Data publikacji:: 2014-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 87.64.kh
87.80.Lg
61.72.Hh
33.35.+r
76.30.Rn
32.10.Fn
33.15.Pw
71.18.+y
76.30.-v
61.82.Pv
61.72.-y
Opis:: Cholestanone ($C_{27}H_{46}O$) single crystals were irradiated with ⁶⁰Co-γ rays at room temperature. The spectra were recorded for different orientations of the crystal in the magnetic field at 120 K using the EPR technique. Radiation damage center was attributed to $CHCH_2CH_2$ radical. The principal values of the hyperfine coupling tensor of the unpaired electron with the protons and the principal values of the g tensor were determined. The results were found to be in good agreement with the existing literature.
Źródło:: Acta Physica Polonica A; 2014, 125, 1; 135-138
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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