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Belyaev, B. A.
Investigation of frequency-selective devices based on a microstrip 2D photonic crystal / B. A. Belyaev, S. A. Khodenkov, V. F. Shabanov // Dokl. Phys. - 2016. - Vol. 61, Is. 4. - P. 155-159, DOI 10.1134/S1028335816040017. - Cited References:8. - This study was supported by the Ministry of Education and Science of the Russian Federation and grant MK-5942.2014.8 of the President of the Russian Federation for State Support of Young Russian Scientists. . - ISSN 1028-3358. - ISSN 1562-6903

РУБ Mechanics + Physics, Multidisciplinary
Рубрики:
Bandpass-filters
Models
Аннотация: The frequency-selective properties of structures based on a 2D microstrip photonic crystal have been investigated theoretically and experimentally. It is shown that various microwave devices, including diplexers, bandpass filters, and double bandpass filters, can be designed based on these structures.

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Публикация на русском языке Беляев, Борис Афанасьевич. Исследование частотно-селективных устройств, построенных на основе микрополоскового двумерного фотонного кристалла [Текст] / Б. А. Беляев, С. А. Ходенков, В. Ф. Шабанов // Докл. Акад. наук : Наука, 2016. - Т. 467 № 4. - С. 400-404

Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia.
Reshetnev Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Khodenkov, S. A.; Shabanov, V. F.; Шабанов, Василий Филиппович; Беляев, Борис Афанасьевич; Ministry of Education and Science of the Russian Federation; Russian Federation [MK-5942.2014.8]
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Zobov, V. E.
Singular points of time-dependent correlation functions of spin systems on large-dimensional lattices at high temperatures / V. E. Zobov // Theor. Math. Phys. - 2000. - Vol. 123, Is. 1. - P. 511-523, DOI 10.1007/BF02551058. - Cited References: 21 . - ISSN 0040-5779

РУБ Physics, Multidisciplinary + Physics, Mathematical
Рубрики:
BRANCHED POLYMERS
   HEISENBERG MAGNET
   EXPANSION
   MODELS
Аннотация: Time-dependent autocorrelation functions are investigated for the Heisenberg model with spins 1/2 on d-dimensional simple cubic lattices of large dimensions d at infinite temperature. The autocorrelation function on the imaginary time axis is interpreted as the generating function of bond trees constructed with double bonds. These trees provide the leading terms with respect to lid for the time-expansion coefficients of the autocorrelation function. The correction terms from branch intersections to the generating function in the Bethe approximation are derived for these trees. A procedure is suggested for finding the correction to the coordinate of the singular point of the generating function (i.e., to the reciprocal of the branch growth-rate parameter) from the above correction terms without calculating the number of trees. The leading correction terms of order 1/sigma(2) (where sigma = 2d - 1) are found for the coordinates of the singular points of the autocorrelation function in question and for the generating function of the trees constructed with single bonds in the Eden model.

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Держатели документа:
RAS, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk, Russia
ИФ СО РАН

Доп.точки доступа:
Зобов, Владимир Евгеньевич
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GEKHT, R. S.
MAGNETIC-STRUCTURES AND PROPERTIES OF STATES IN STRONGLY FRUSTRATED HEISENBERG ANTIFERROMAGNETS / R. S. GEKHT // Zhurnal Eksperimentalnoi Teor. Fiz. - 1992. - Vol. 102, Is. 6. - P. 1968-1982. - Cited References: 23 . - ISSN 0044-4510

РУБ Physics, Multidisciplinary
Рубрики:
PHASE-TRANSITIONS
   SPIN
   LATTICE
   MODELS
   LONG
Аннотация: The magnetic structures and properties of states in frustrated Heisenberg antiferromagnets are analyzed. It is shown that frustrations induced due to additional spins in the system lead to a large variety of phase with the commensurable and uncommensurable periods and also to arising nonperiodical phases. The energy spectrum of states is studied. It is found that in the large region of the frustration parameter variation the modulated phase (0, Q) is unstable. The phase diagram of states is found and the region of local degeneration for some structures is indicated.

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