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101.
102.
H.B. Brom Y. Tomkiewicz A. Aviram A. Broers B. Sunners 《Solid State Communications》1980,35(2):135-139
Transport and magnetic properties of pyrolyzed Kapton are studied for different pyrolysis temperatures. We show that well below the graphitization level, pyrolyzed Kapton exhibits isotropic conductivities comparable to those measured for doped polyacetylene. Variable range hopping is suggested as a possible mechanism for this high conductivity. The effect of pyrolysis on carrier number and mobility has been investigated. It has been shown that for low pryolysis temperatures (Tp < 650°C) it is the carrier number which predominantly increases while for Tp > 650°C the most significant changes occur in the carrier mobility. 相似文献
103.
本文报导了采用氩离子激光器来泵浦Rr ̄(3+):YLF晶体,应用声光调制器实现了主动锁模;同时应用振动─高反射平面镜也实现了被动锁模,两种锁模均得到了ps光脉冲。据作者了解这是这种晶体材料的第一次锁模运转。 相似文献
104.
O. N. Bakharev A. V. Dooglav A. V. Egorov E. V. Krjukov Yu. A. Sakhratov M. A. Teplov H. B. Brom J. Witteveen 《JETP Letters》1996,64(5):398-403
The nuclear magnetic relaxation of 169Tm in TmBa2Cu3O6+x
(x=0.1–1.0, Δ x=0.1) and TmBa2Cu4O8 is studied at temperatures below 5 K. In all the samples, the Tm spin-lattice relaxation proceeds via intrinsic paramagnetic
centers (PCs) like Cu2+ or copper-oxygen spin-polarized clusters. The experimental data for TmBa2Cu3O6+x
support the idea of the structural (chemical) micro-phase separation in oxygen-deficient 123 compounds. Apparently, the samples
with x⩾0.4 contain hole-poor nonsuperconducting regions, enriched with PCs, and hole-rich (PC-poor) superconducting regions. The
volume fraction f
n of the PC-rich phase reaches a maximum value of 0.85 at x=0.4 and decreases monotonically with increasing x (f
n=0.5, 0.3, and 0.25 at x=0.5, 0.6, and 0.7, respectively). The Tm spin-lattice relaxation in the underdoped TmBa2Cu4O8 compound indicates that this sample, in contrast to oxygen-deficient TmBa2Cu3O6+x
, has a homogeneous composition. However, the Tm spin-spin relaxation measurements reveal two sorts of the Tm nuclear spins
in Tm124, having different NMR spectra and different relaxation times T
2. The latter result is evidence of electronic phase separation in CuO2 phases.
Pis’ma Zh. éksp. Teor. Fiz. 64, No. 5, 365–370 (10 September 1996)
Published in English in the original Russian journal. Edited by Steve Torstveit. 相似文献
105.
Photoionization efficiency data for Hg2+ have been obtained in the region of 650–1400 A. The ionization energy of Hg2 was determined to be 9.103 ± 0.010 eV. This value allows the calculation of the dissociation energy of Hg+2 to be 1.40 ± 0.02 eV. By analyzing the differences in energy between corresponding autoionization peaks observed in the Hg+ and the Hg2+ spectra and by assuming the charge induced-dipole interaction to be the dominant interaction between Hg+(2D5/2, 3/2) and Hg at the equilibrium bond distance of Hg2, the equilibrium bond distance for Hg2 was deduced to 3.35 A. 相似文献
106.
Abachi S Baringer P Bylsma BG DeBonte R Koltick D Low EH McIlwain RL Miller DH Ng CR Shibata EI Derrick M Kooijman P Loos JS Musgrave B Price LE Repond J Sugano K Blockus D Brabson B Brom J Jung C Ogren H Paik HW Rust DR Ackerlof C Chapman J Errede D Ken MT Meyer DI Nitz D Thun R Tschirhart R Neal H Cork B 《Physical review letters》1987,58(25):2627-2630
107.
108.
Geld TL Neal H Akerlof C Chapman J Errede D Ken MT Kesten P Meyer DI Nitz D Thun R Tschirhart R Abachi S Derrick M Kooijman P Musgrave B Price L Repond J Sugano K Blockus D Brabson BB Brom J Jung C Ogren H Rust DR Snyder A Cork B Baringer P Bylsma BG Debonte R Low EH McIlwain RL Miller DH Ng CR Rangan K Shibata E 《Physical review D: Particles and fields》1992,45(11):3949-3954
109.
Alves GA Amato S Anjos JC Appel JA Astorga J Bracker SB Cremaldi LM Dagenhart WD Darling CL Dixon RL Errede D Fenker HC Gay C Green DR Jedicke R Karchin PE Kennedy C Kwan S Lueking LH de Mello Neto JR Metheny J Milburn RH de Miranda JM da Motta Filho H Napier A Passmore D Rafatian A dos Reis AC Ross WR Santoro AF Sheaff M Souza MH Spalding WJ Stoughton C Streetman ME Summers DJ Takach SF Wallace A Wu Z 《Physical review letters》1996,77(12):2392-2395
110.