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American Institute of Physics |
Documentos disponibles de esta editorial (326)
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In this work, we introduce a phenomenological model describing the thermoelectric power of icosahedral quasicrystals. On the basis of a realistic model for the spectral conductivity, obtained from ab initio band-structure calculations [C. Landau[...]![]()
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Díez, E. ; Domínguez-Adame Acosta, Francisco ; Sánchez, Angel | American Institute of Physics | 1995-05-01We study resonant tunneling in B-S-doped diodes grown by Si-molecular beam epitaxy. A Thomas-Fermi approach is used to obtain the conduction-band modulation. Using a scalar Hamiltonian within the effective-mass approximation. we demonstrate that[...]![]()
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Magdas, Dana A. ; Cremades Rodríguez, Ana Isabel ; Piqueras de Noriega, Javier | American Institute of Physics | 2006-11-01Elongated In2O3 micro- and nanostructures have been grown by two-step thermal treatments of compacted InN powder, at temperatures between 350 and 700 degrees C. Different thermal treatments have been found to induce the growth of structures with[...]![]()
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Díaz-Guerra Viejo, Carlos ; Piqueras de Noriega, Javier ; Castaldini, A. ; Cavallini, A. ; Polenta, L. | American Institute of Physics | 2003-08-15Time-resolved cathodoluminescence (TRCL) and photocurrent (PC) spectroscopies have been applied to the study of the yellow band of Si-doped GaN. Measurements carried out combining both techniques unambiguously reveal the complex nature of this b[...]![]()
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Mártil de la Plaza, Ignacio ; González Díaz, Germán ; Olea Ariza, Javier | American Institute of Physics | 2008-07-01Ion implantation of Ti into Si at high doses has been performed. After laser annealing the maximum average of substitutional Ti atoms is about 10(18) cm(-3). Hall effect measurements show n-type samples with mobility values of about 400 cm(2)/V [...]![]()
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Total cross sections for electron scattering by 1-propanol at impact energies in the range 40-500 eV
Silva, D. G. M. da ; Gomes, M. ; Ghosh, S. ; Silva, I. F. L. ; Pires, W. A. D. ; Jones,, D. B. ; Blanco Ramos, Francisco ; García, C. ; Buckman, S. J. ; Brunger, M. J. ; Lopes, C. A. | American Institute of Physics | 2017-11-21Absolute total cross section (TCS) measurements for electron scattering from 1-propanol molecules are reported for impact energies from 40 to 500 eV. These measurements were obtained using a new apparatus developed at Juiz de Fora Federal Univer[...]![]()
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Trace identities arising in the scattering theory of one-dimensional matrix Schrodinger operators are deduced. They derive from the properties of an asymptotic expansion of the trace of the resolvent kernel in inverse powers of the spectral para[...]![]()
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Motivated by the classical studies on transformations of conjugate nets, we develop the general geometric theory of transformations of their discrete analogs: the multidimensional quadrilateral lattices, i.e., lattices x:Z(N)--> R-M, N less tha[...]![]()
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Cascales, J. P. ; Martínez, I. ; Díaz, D. ; Rodrigo Martín-Romo, José Augusto ; Aliev, F. G. | American Institute of Physics | 2014-06-09The time dependent transient lateral photovoltaic effect has been studied with ls time resolution and with chopping frequencies in the kHz range, in lithographically patterned 21 nm thick, 5, 10, and 20 lm wide, and 1500 lm long Co lines grown o[...]![]()
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Gómez, I. ; Díez, E. ; Domínguez-Adame Acosta, Francisco ; Orellana, P. A. | American Institute of Physics | 2002-10-15We present a model based on the two-dimensional transfer matrix formalism to calculate single-electron states in a random wide-gap semiconductor quantum dot superlattice. With a simple disorder model both the random arrangement of quantum dots ([...]![]()
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González Herrera, Elvira María ; Núñez Álvarez, Nuria Ofelia ; Anguita, J. V. ; Vicent López, José Luis | American Institute of Physics | 2007-08-06Superconducting Nb films have been grown on top of arrays of Cu nanotriangles. These asymmetric pinning centers strongly modify the vortex lattice dynamics. Two rectification effects have been observed: (i) longitudinal ratchet effect when the i[...]![]()
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We present numerically determined travelling-wave solutions for pressure-driven flow through a straight duct with a square cross-section. This family of solutions represents typical coherent structures (a staggered array of counter-rotating stre[...]![]()
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Sefrioui, Zouhair ; Cros, V. ; Barthélémy, A. ; Peña, V. ; León Yebra, Carlos ; Santamaría Sánchez-Barriga, Jacobo ; Varela del Arco, María ; Pennycook, S.J. | American Institute of Physics | 2006-06-09We report large tunneling magnetoresistance in La_(0.7)Ca_(0.3)MnO_(3) (8 nm)/PrBa_(2)Cu_(3)O_(7) (2.4 nm)/La_(0.7)Ca_(0.3)MnO_(3) (50 nm) junctions. The coherent growth of the cuprate on the manganite allows the deposition of ultrathin barriers[...]![]()
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Sekimoto, Atshushi ; Kawahara, Genta ; Sekiyama, K. ; Uhlmann, Markus ; Pinelli, Alfredo | American Institute of Physics | 2011Direct numerical simulations of fully developed turbulent flows in a horizontal square duct heated from below are performed at bulk Reynolds numbers Re(b) = 3000 and 4400 (based on duct width H) and bulk Richardson numbers 0![]()
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Ivorra, Benjamin ; Redondo, Juana L. ; Santiago, Juan J. ; Ortigosa, Pilar M. ; Ramos del Olmo, Ángel Manuel | American Institute of Physics | 2013We present a design of a microfluidic mixer based on hydrodynamic focusing which is used to initiate the folding process (i.e., changes of the molecular structure) of a protein. The folding process is initiated by diluting (from 90% to 30%) the [...]