25 research outputs found
In Situ Spectral Magnetoellipsometry for Structural, Magnetic and Optical Properties of Me/Si (Me Mn, Fe) Nanolayers
In our work we present in-situ spectral magnetoellipsometer is equipped with sapphire manipulator. which allows us to carry out in-situ and in-time optical and magnetooptical measurements in the range from 10 K to 1500 K in spectral range 1.5 eV-4.0 eV (830 nm-300 nm), the range of magnetic fields is +/-0.4 T.
When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3555
ΠΡΠΎΠ±Π΅Π½Π½ΠΎΡΡΠΈ Ρ Π°ΡΠ°ΠΊΡΠ΅ΡΠ½ΡΡ ΡΠ»Π΅ΠΊΡΡΠΎΠΌΠ°Π³Π½ΠΈΡΠ½ΡΡ ΠΊΠΎΠ»Π΅Π±Π°Π½ΠΈΠΉ ΠΏΠ»Π°Π·ΠΌΠ΅Π½Π½ΡΡ ΡΠ³ΡΡΡΠΊΠΎΠ² Π² Π΄Π»ΠΈΠ½Π½ΠΎΠΌ ΠΏΡΠΎΠ±ΠΊΠΎΡΡΠΎΠ½Π΅
The aim of this work was to study the spectrum of LF and HF oscillations generated by plasma bunches created and confined in the volume of a microwave cavity immersed in the magnetic field of a mirror trap. The registration of electrostatic oscillations in the plasma was carried out using two flat electrodes mounted diametrically opposite in the central part of the cavity close to its wall. This diagnostic showed the presence of low-frequency oscillations with frequencies of 130 kHz and 450 kHz. The oscillation spectrum in the microwave range was recorded at the minimum of the magnetic trap using a real-time spectrometer and a loosely coupled loop antenna. The registration of the spectra in the 40 MHz band revealed a regular change in the frequency of the fundamental oscillation mode of the cavity and the presence of two harmonics of the synchrotron radiation of the plasma bunch at frequencies of 2.25 GHz and 4.52 GHz, respectively. According to the obtained data, the parameters of the formed bunch (density, shape, volume, energy spectra of plasma components) can be restored.Π¦Π΅Π»ΡΡ Π΄Π°Π½Π½ΠΎΠΉ ΡΠ°Π±ΠΎΡΡ ΡΠ²Π»ΡΠ»ΠΎΡΡ ΠΈΠ·ΡΡΠ΅Π½ΠΈΠ΅ ΡΠΏΠ΅ΠΊΡΡΠ° ΠΠ§ ΠΈ ΠΠ§ ΠΊΠΎΠ»Π΅Π±Π°Π½ΠΈΠΉ Π³Π΅Π½Π΅ΡΠΈΡΡΠ΅ΠΌΡΡ
ΠΏΠ»Π°Π·ΠΌΠ΅Π½Π½ΡΠΌΠΈ ΡΠ³ΡΡΡΠΊΠ°ΠΌΠΈ, ΡΠΎΠ·Π΄Π°Π²Π°Π΅ΠΌΡΠΌΠΈ ΠΈ ΡΠ΄Π΅ΡΠΆΠΈΠ²Π°Π΅ΠΌΡΠΌΠΈ Π² ΡΠ°Π±ΠΎΡΠ΅ΠΌ ΠΎΠ±ΡΠ΅ΠΌΠ΅ Π²ΡΡΠΎΠΊΠΎΡΠ°ΡΡΠΎΡΠ½ΠΎΠ³ΠΎ ΡΠ΅Π·ΠΎΠ½Π°ΡΠΎΡΠ°, Π½Π°Ρ
ΠΎΠ΄ΡΡΠ΅Π³ΠΎΡΡ Π² ΠΌΠ°Π³Π½ΠΈΡΠ½ΠΎΠΌ ΠΏΠΎΠ»Π΅ Π·Π΅ΡΠΊΠ°Π»ΡΠ½ΠΎΠΉ Π»ΠΎΠ²ΡΡΠΊΠΈ. Π Π΅Π³ΠΈΡΡΡΠ°ΡΠΈΡ ΡΠ»Π΅ΠΊΡΡΠΎΡΡΠ°ΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΊΠΎΠ»Π΅Π±Π°Π½ΠΈΠΉ Π² ΠΏΠ»Π°Π·ΠΌΠ΅ ΠΎΡΡΡΠ΅ΡΡΠ²Π»ΡΠ»ΠΎΡΡ ΠΏΡΠΈ ΠΏΠΎΠΌΠΎΡΠΈ Π΄Π²ΡΡ
ΠΏΠ»ΠΎΡΠΊΠΈΡ
ΡΠ»Π΅ΠΊΡΡΠΎΠ΄ΠΎΠ² ΡΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½Π½ΡΡ
Π΄ΠΈΠ°ΠΌΠ΅ΡΡΠ°Π»ΡΠ½ΠΎ ΠΏΡΠΎΡΠΈΠ²ΠΎΠΏΠΎΠ»ΠΎΠΆΠ½ΠΎ Π² ΡΠ΅Π½ΡΡΠ°Π»ΡΠ½ΠΎΠΉ ΡΠ°ΡΡΠΈ ΡΠ΅Π·ΠΎΠ½Π°ΡΠΎΡΠ° Π² Π΅Π³ΠΎ ΠΏΡΠΈΡΡΠ΅Π½ΠΎΡΠ½ΠΎΠΉ ΠΎΠ±Π»Π°ΡΡΠΈ. ΠΡΠ° Π΄ΠΈΠ°Π³Π½ΠΎΡΡΠΈΠΊΠ° ΠΏΠΎΠΊΠ°Π·Π°Π»Π° Π½Π°Π»ΠΈΡΠΈΠ΅ Π½ΠΈΠ·ΠΊΠΎΡΠ°ΡΡΠΎΡΠ½ΡΡ
ΠΊΠΎΠ»Π΅Π±Π°Π½ΠΈΠΉ Ρ ΡΠ°ΡΡΠΎΡΠ°ΠΌΠΈ 130 ΠΊΠΡ ΠΈ 450 ΠΊΠΡ. Π‘ΠΏΠ΅ΠΊΡΡ ΠΊΠΎΠ»Π΅Π±Π°Π½ΠΈΠΉ Π² Π‘ΠΠ§ Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½Π΅ ΡΠ΅Π³ΠΈΡΡΡΠΈΡΠΎΠ²Π°Π»ΡΡ Π² ΠΌΠΈΠ½ΠΈΠΌΡΠΌΠ΅ ΠΌΠ°Π³Π½ΠΈΡΠ½ΠΎΠΉ Π»ΠΎΠ²ΡΡΠΊΠΈ ΠΏΡΠΈ ΠΏΠΎΠΌΠΎΡΠΈ ΡΠΏΠ΅ΠΊΡΡΠΎΠΌΠ΅ΡΡΠ° ΡΠ΅Π°Π»ΡΠ½ΠΎ Π²ΡΠ΅ΠΌΠ΅Π½ΠΈ ΠΈ ΡΠ»Π°Π±ΠΎ ΡΠ²ΡΠ·Π°Π½Π½ΠΎΠΉ ΠΏΠ΅ΡΠ»Π΅Π²ΠΎΠΉ Π°Π½ΡΠ΅Π½Π½Ρ. Π Π΅Π³ΠΈΡΡΡΠ°ΡΠΈΡ ΡΠΏΠ΅ΠΊΡΡΠΎΠ² Π² ΠΏΠΎΠ»ΠΎΡΠ΅ 40 ΠΠΡ ΠΏΠΎΠ·Π²ΠΎΠ»ΠΈΠ»Π° Π²ΡΡΠ²ΠΈΡΡ Π·Π°ΠΊΠΎΠ½ΠΎΠΌΠ΅ΡΠ½ΠΎΠ΅ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ ΡΠ°ΡΡΠΎΡΡ ΠΎΡΠ½ΠΎΠ²Π½ΠΎΠΉ ΠΌΠΎΠ΄Ρ ΠΊΠΎΠ»Π΅Π±Π°Π½ΠΈΠΉ ΡΠ΅Π·ΠΎΠ½Π°ΡΠΎΡΠ° ΠΈ Π½Π°Π»ΠΈΡΠΈΠ΅ Π΄Π²ΡΡ
Π³Π°ΡΠΌΠΎΠ½ΠΈΠΊ ΡΠΈΠ½Ρ
ΡΠΎΡΡΠΎΠ½Π½ΠΎΠ³ΠΎ ΠΈΠ·Π»ΡΡΠ΅Π½ΠΈΡ ΠΏΠ»Π°Π·ΠΌΠ΅Π½Π½ΠΎΠ³ΠΎ ΡΠ³ΡΡΡΠΊΠ° Π½Π° ΡΠ°ΡΡΠΎΡΠ°Ρ
2.25 ΠΠΡ ΠΈ 4.52 ΠΠΡ ΡΠΎΠΎΡΠ²Π΅ΡΡΡΠ²Π΅Π½Π½ΠΎ. ΠΠΎ ΠΏΠΎΠ»ΡΡΠ΅Π½Π½ΡΠΌ Π΄Π°Π½Π½ΡΠΌ ΠΌΠΎΠ³ΡΡ Π±ΡΡΡ Π²ΠΎΡΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½Ρ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΡ ΡΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ ΡΠ³ΡΡΡΠΊΠ° (ΠΏΠ»ΠΎΡΠ½ΠΎΡΡΡ, ΡΠΎΡΠΌΠ°, ΠΎΠ±ΡΠ΅ΠΌ, ΡΠ½Π΅ΡΠ³Π΅ΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΡΠΏΠ΅ΠΊΡΡΡ ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½Ρ ΠΏΠ»Π°Π·ΠΌΡ)
PHENYLATION OF BETA-PICOLINE ISOLATION AND STRUCTURAL ASSIGNMENT OF BETA-PYRIDYL-ALPHA-DEHYDROPIPERIDINE
The phenylation of 3Ξ²picoline. Isolation and establishment of the structure of Ξ²-pyridyl-Ξ±-dehydropiperidine
It was established that the side product that is formed in substantial amounts in the phenylation of Ξ²-picoline by phenyllithium is 3-methyl-2-phenyl-5-(3-methyl-2-phenyl-3,4-dehydropiperidyl-6)pyridine - a structural analog of anabasine. Its structure was demonstrated by spectral methods and by chemical conversions. Β© 1985 Plenum Publishing Corporation
PHENYLATION OF BETA-PICOLINE ISOLATION AND STRUCTURAL ASSIGNMENT OF BETA-PYRIDYL-ALPHA-DEHYDROPIPERIDINE
The phenylation of 3Ξ²picoline. Isolation and establishment of the structure of Ξ²-pyridyl-Ξ±-dehydropiperidine
It was established that the side product that is formed in substantial amounts in the phenylation of Ξ²-picoline by phenyllithium is 3-methyl-2-phenyl-5-(3-methyl-2-phenyl-3,4-dehydropiperidyl-6)pyridine - a structural analog of anabasine. Its structure was demonstrated by spectral methods and by chemical conversions. Β© 1985 Plenum Publishing Corporation
10-Sila-2-azaanthracenes hydrogenated in the pyridine fragment
The corresponding 1,2,3,4,4a, 9,9a, 10-octahydro derivatives were obtained in the catalytic hydrogenation of 10,10-dimethyl- and 10-methyl-10-phenyl-9,10-dihydro-10-sila-2-azaanthracenes. The hydrogenation of 10,10-dimethyl-10-sila-2-azaanthrone also leads to a substituted octahydrosilaazaanthracene. Isomeric (with respect to the position of the double bond in the nitrogen-containing ring) hexahydrosilaaza-9-anthrols were isolated as a result of the reduction of the methiodide of this silaazaanthrone with sodium borohydride. Β© 1991 Plenum Publishing Corporation