Listar División de Nanociencias y Materiales por autor "American Physical Society"

Mostrando ítems 1-17 de 17

    • Caloric effects induced by magnetic and mechanical fields in a Ni50Mn25-xGa25Cox magnetic shape memory alloy 

      Castillo Villa, Pedro Osmany; Soto-Parra, Daniel Enrique; Matutes Aquino, José Andrés; Ochoa-Gamboa, Raul Armando; Planes, Antoni; Mañosa, Lluis; González Alonso, David; Stipcich, Marcelo; Romero, Ricardo; Ríos Jara, David; Flores Zúñiga, Horacio (2011-05)
      "We have studied the elastocaloric effect in a Co-doped Ni-Mn-Ga magnetic Heusler shape memory alloy in the vicinity of its martensitic transition. Measurements of the length change as a function of temperature have been ...

    • Competing magnetic structures and magnetic transitions in Er(2)Ni(2)Pb: powder neutron diffraction measurements 

      Muñoz Sandoval, Emilio (2008-07)
      "We have studied the magnetic structures of Er(2)Ni(2)Pb using a powder neutron diffraction technique in zero field. Previous bulk measurements suggested three distinct magnetic phase transitions. Our neutron diffraction ...

    • Effect of packing on the cohesive and electronic properties of methanofullerene crystals 

      Nápoles Duarte, José Manuel; Reyes Reyes, Marisol; Ricardo Chávez, José Luis; Garibay Alonso, Raúl; López Sandoval, Román (2008-07)
      "The crystal structure, cohesive energy, and electronic properties of bulk phases of the fullerene derivative [6, 6]-phenyl-C(61)-butyric-acid-methyl-ester (PCBM) have been calculated using ab initio density-functional ...

    • Enhanced tunneling through nonstationary barriers 

      Palomares Báez, Juan Pedro; Ivlev, Boris; Rodríguez López, José Luis (2007-11)
      "Quantum tunneling through a nonstationary barrier is studied analytically and by a direct numerical solution of Schrödinger equation. Both methods are in agreement and say that the main features of the phenomenon can be ...

    • Generalizing segregation and chemical ordering in bimetallic nanoclusters through atomistic view points 

      Reyes Nava, Juan Andrés; Rodríguez López, José Luis; Umapada Pal (2009-10)
      "We predict general trends for surface segregation in binary metal clusters based on the difference between the atomic properties of the constituent elements. The energetically most favorable site for a guest atom on a ...

    • Genetic algorithm optimization of entanglement 

      Navarro Muñoz, Jorge Carlos; Rosu Barbus, Haret-Codratian; López Sandoval, Román (2006)
      "We present an application of a genetic algorithmic computational method to the optimization of the concurrence measure of entanglement for the cases of one dimensional chains, as well as square and triangular lattices in ...

    • Intertwined magneto-optical and plasmonic effects in Ag/Co/Ag layered structures 

      Ferreiro Vila, Elías; González Díaz, Juan B.; Fermento, Rui; González, María Ujué; García Martín, Antonio; García Martín, José Miguel; Cebollada, Alfonso; Armelles, Gaspar; Meneses Rodríguez, David; Muñoz Sandoval, Emilio (2009-09)
      "Surface plasmon polariton (SPP) excitation effects on the magneto-optical (MO) activity of Au capped Ag/Co/Ag trilayers are studied as a function of Co thickness. An enhancement of the transverse MO Kerr signal under SPP ...

    • Magnetovolume and magnetocaloric effects in Er2Fe17 

      Álvarez Alonso, Pablo; Gorria, Pedro; Blanco Rodríguez, Jesús Angel; Sánchez Marcos, Jorge; Cuello, Gabriel J.; Puente Orench, Inés; Rodríguez Velamazán, José Alberto; Garbarino, Gastón; De Pedro, Imanol; Rodríguez Fernández, Jesús; Sánchez Llamazares, José Luis (2012-11)
      "Combining different experimental techniques, investigations in hexagonal P6(3)/mmc Er2Fe17 showremarkable magnetovolume anomalies below the Curie temperature, T-C. The spontaneous magnetostriction reaches 1.6 x 10(-2) at ...

    • Newton´s laws of motion in the form of a Riccati equation 

      Nowakowski, Marek; Rosu Barbus, Haret-Codratian (2002)
      "We discuss two applications of a Riccati equation to Newton´s laws of motion. The first one is the motion of a particle under the influence of a power law central potential V(r)=krε. For zero total energy we show that the ...

    • Nonlinear software sensor for monitoring genetic regulation processes with noise and modeling errors 

      Ibarra Junquera, Vrani; Torres González, Luis Adolfo; Rosu Barbus, Haret-Codratian; Argüello Astorga, Gerardo Rafael (2005)
      "Nonlinear control techniques by means of a software sensor that are commonly used in chemical engineering could be also applied to genetic regulation processes. We provide here a realistic formulation of this procedure ...

    • Observation of magnetic edge state in graphene nanoribbons 

      Joly, V. L.Joseph; Kiguchi, Manabu; Hao, Sijia; Takai, Kazuyuki; Enoki, Toshiaki; Sumii, Ryouhei; Amemiya, Kenta; Muramatsu, Hiroyukim; Hayashi, Takuya; Kim, Yoong Ahm; Endo, Morinobu; Campos Delgado, Jessica Rosaura; López Urías, Florentino; Botello Méndez, Andrés Rafael; Terrones Maldonado, Humberto; Terrones Maldonado, Mauricio; Dresselhaus, Mildred (2010-06)
      "The electronic structure and spin magnetism for few-layer-graphene nanoribbons synthesized by chemical vapor deposition have been investigated using near-edge x-ray absorption fine structure (NEXAFS) and electron-spin ...

    • Raman spectroscopy study of heat-treated and boron-doped double wall carbon nanotubes 

      Villalpando Paez, Federico; Son, Hyungbin; Chou, Shin Grace; Samsonidze, Georgy G.; Kim, Yoong Ahm; Muramatsu, Hiroyukim; Hayashi, Takuya; Endo, Morinobu; Terrones Maldonado, Mauricio; Dresselhaus, Mildred (2009-07)
      "We performed Raman spectroscopy experiments on undoped and boron-doped double walled carbon nanotubes (DWNTs) that exhibit the "coalescence inducing mode" as these DWNTs are heat treated to temperatures between 1200 C and ...

    • Ramanujan sums for signal processing of low-frequency noise 

      Planat, Michel; Rosu Barbus, Haret-Codratian; Perrine, Serge (2002)
      "An aperiodic (low-frequency) spectrum may originate from the error term in the mean value of an arithmetical function such as Mobius function or Mangoldt function, which are coding sequences for prime numbers. In the ...

    • Statistical similarity between the compression of a porous material and earthquakes 

      Baró, Jordi; Corral, Alvaro; Illa, Xavier; Planes, Antoni; Salje, Ekhard K. H.; Schranz, Wilfried; Soto-Parra, Daniel Enrique; Vives, Eduard (2013-02)
      "It has long been stated that there are profound analogies between fracture experiments and earthquakes; however, few works attempt a complete characterization of the parallels between these so separate phenomena. We study ...

    • Supersymmetric pairing of kinks for polynomial nonlinearities 

      Rosu Barbus, Haret-Codratian; Cornejo Pérez, Octavio (2005)
      "We show how one can obtain kink solutions of ordinary differential equations with polynomial nonlinearities by an efficient factorization procedure directly related to the factorization of their nonlinear polynomial part. ...

    • Traveling kinks in cubic nonlinear Ginzburg-Landau equations 

      Rosu Barbus, Haret-Codratian; Cornejo Pérez, Octavio; Ojeda May, Pedro Armando (2012)
      "Nonlinear cubic Euler-Lagrange equations of motion in the traveling variable are usually derived from Ginzburg-Landau free energy functionals frequently encountered in several fields of physics. Many authors considered ...

    • Two-dimensional tunneling in a SQUID 

      Ivlev, Boris; Palomares Báez, Juan Pedro (2010-11)
      "Traditionally quantum tunneling in a superconducting quantum interference device (SQUID) is studied on the basis of a classical trajectory in imaginary time under a two-dimensional potential barrier. The trajectory connects ...