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Varyukhin, S. V.; Zakharov, A. A.; Gershenzon, E. M.; Gol'tsman, G. N.; Ptitsyna, N. G.; Chulkova, G. M. |
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Title |
AC losses and submillimeter absorption in single crystals La2CuO4 |
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Journal Article |
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1990 |
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Phys. B Condens. Mat. |
Abbreviated Journal |
Phys. B Condens. Mat. |
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165-166 |
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1269-1270 |
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metal-dielectric-La2Cu04 |
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Abstract |
The La2CuO4 single crystals were used to carry out the measurements of transmission spectra within the submillimeter range of wavelengths, as well as the capacitance C and conductivity G in the region of acoustic frequencies of the metal-dielectric-La2Cu04 system at low temperatures. The optical spectra display a threshold character. There takes place a sharp decreasing of transmission signal in the energy range of hυ>1.5meV. The C(ω,T) and G(ω,T) dependences have a universal form characteristic of relaxation processes of the Debye type. The relaxation time dependence displays a thermoactivation character τ(T)-exp(ξ/T) with a gap value of ξ≃2meV,coinciding with the optical one. It is assumed that there exist excitations with a characteristic energy ~ 2meV in La2Cu04.A possible nature of the revealed low-energy excitations is discussed. |
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0921-4526 |
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1686 |
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Stevens, M.; Hadfeld, R.; Schwall, R.; Nam, S.W.; and Mirin, R. |
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Title |
Quantum dot single photon sources studied with superconducting single photon detectors |
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2006 |
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IEEE J. Sel. Topics Quantum Electron. |
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12 |
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6 |
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1255-1267 |
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SSPD, jitter, QD, QW |
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RPLAB @ akorneev @ |
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612 |
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Gershenzon, E. M.; Goltsman, G. N.; Ptitsyna, N. G. |
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Title |
Investigation of excited donor states in GaAs |
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1974 |
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Sov. Phys. Semicond. |
Abbreviated Journal |
Sov. Phys. Semicond. |
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7 |
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10 |
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1248-1250 |
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GaAs, excited donor states |
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Amer Inst Physics 1305 Walt Whitman Rd, Ste 300, Melville, Ny 11747-4501 Usa |
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1733 |
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Astakhov, V I; Vanin, N V; Galaktionov, V V; Dorokhov, V M; Zakharov, V M; Khattatov, V U |
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Use of laser heterodyne spectrometry in determining monochromatic atmospheric transmission |
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1979 |
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Sov. J. Quantum Electron. |
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9 |
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10 |
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1245-1250 |
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IR applications |
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0049-1748 |
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489 |
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Author |
Tucker, J. R. |
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Title |
Quantum limited detection in tunnel junction mixers |
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1979 |
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IEEE J. Quantum Electron. |
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15 |
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11 |
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1234-1258 |
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sis_Tucker_1979 |
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223 |
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