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Associate researchers

Pedro Landeros Silva

Phone(s): (56-32) 2654021 , (56-32) 2797656
Departamento de Física, Universidad Técnica Federico Santa María.
Av. España 1680, Valparaíso, Chile.

Professional Degree

  • Associated Proffesor (since 2015), Departamento de Física, UTFSM.
  • Auxiliar Professor ( 2011-2014), Departamento de Física, UTFSM.
  • Associated Researcher (since 2010), Departamento de Física, Universidad Técnica Federico Santa María, Valparaíso, Chile.
  • Postdoctoral Researcher (2007-2009), Departamento de Física, Universidad Técnica Federico Santa María, Valparaíso, Chile.
  • Ph.D., Physics (2007), Departamento de Física, Universidad de Santiago de Chile.
  • B.S., Physics (2003), Departamento de Física, Universidad de Santiago de Chile.

Research Areas

  • Condensed Matter Physics, Magnetism, Nanotechnology, Spin dynamics, Ferromagnetic resonance, Magnetic damping, Two-magnon scattering, Magnetic nano-structures, Domain wall dynamics, Spin-transfer torque, Magnetization reversal, Magnetic recording media, Heat assisted magnetic recording.

National and International Committees and Honors

  • Scientific initiation scholarship ICM (Chile 2002-2003).
  • Ph.D. fellowship MECESUP (Chile 2003-2004).
  • Ph.D. fellowship CONICYT (Chile 2004-2007).
  • Postdoctoral fellowship PBCT (Chile 2007-2009).
  • Juan de la Cierva 2010 postdoctoral fellowship, MICINN Spain (Ranked number 1 from 112 applicants in Materials Science and Technology).

Projects

  • FONDECYT Nº 11080246, Spin dynamics, magnetization reversal and domain wall dynamics in magnetic nanostructures, responsible investigator (Chile 2009-2011).
  • Internal grant USM-DGIP 11.08.57, co-investigator (Chile 2008).
  • Financiamiento basal para centros científicos de excelencia, Centro para el desarrollo de la Nanociencia y Nanotecnología CEDENNA, young researcher (Chile 2009-2013).
  • Núcleo milenio “Magnetismo básico y aplicado”, young researcher (Chile 2011-2013).

Conferences (2006 to date)

Selected talks and conference presentations in the last 5 years (Over 40 conferences presentations, posters, seminars and invited talks)
  • Manipulación de propiedades magnéticas de películas delgadas mediante transferencia de spin-torque, P. Landeros, R. A. Gallardo, I Workshop Chile-Mexico on Magnetism, Nanosciences and their applications, Los Andes, Chile, March 2011 [invited talk].
  • Properties of magnetic nanodots with perpendicular anisotropy, E. R. P. Novais, A. G. S. Barbosa, M. D. Martins, P. Landeros, F. Garcia, and A. P. Guimarães, At the Frontiers of Condensed Matter V, Buenos Aires, Argentina, December 2010.
  • Rol de la transferencia de espín en la respuesta de resonancia ferromagnética de películas delgadas, P. Landeros, R. A. Gallardo, O. Posth, J. Lindner, and D. L. Mills, Escuela Chile-Brasil de Nanomagnetismo, Porto Alegre, Brazil, October 2010.
  • Static and dynamic properties of magnetic nanostructures, P. Landeros, invited talk, II Escuela de Magnetismo para Estudiantes Universitarios, Chile, September 2010.
  • Influence of the spin-transfer effect on the ferromagnetic resonance response of magnetic thin films, P. Landeros, R. A. Gallardo, O. Posth, J. Lindner, and D. L. Mills, IX LAW3M, Manizales, Colombia, July 2010.
  • Static and dynamic properties of magnetic nanostructures, P. Landeros, invited seminar, Hitachi Global Storage Technologies, San José Research Center, San José, California, USA, June 2010.
  • Static and dynamic properties of magnetic nanostructures, P. Landeros, invited seminar, CIC NanoGUNE Consolider, San Sebastian, Spain, May 2010.
  • Domain wall motion on ferromagnetic nanotubes, P. Landeros, and Álvaro S. Núñez, 11th International Conference on Advanced Materials ICAM, Rio de Janeiro, Brazil, September 2009.
  • Two-magnon damping in thin films in the case of canted magnetization: Theory versus Experiment, J. Lindner, I. Barsukov, C. Raeder, C. Hassel, O. Posth, R. Meckenstock, P. Landeros, and D. L. Mills, 11th International Conference on Advanced Materials ICAM, Rio de Janeiro, Brazil, September 2009.
  • Magnetic nanodots: Hysteresis loops and vortex core calculations, José Mejía-López, D. Altbir, J. Escrig, P. Landeros, and A. H. Romero, 19th Soft Magnetic Materials Conference, Torino, Italia, September 2009.
  • Propiedades físicas de nanotubos magnéticos, invited seminar, Departamento de Física, Universidad de Chile, Santiago, Chile, March 2009.
  • Beyond Gilbert damping in magnetic thin films: role of two-magnon scattering and spin-currents, P. Landeros, invited talk, I Workshop Chile-Mexico on Magnetic Nanostructures, Temuco, Chile, January 2009.
  • Magnetic Nanostructures: ground states, domain walls and magnetization reversal, P. Landeros, invited talk, Escuela de Nanoestructuras UTFSM, Valparaíso, Chile, January 2008.
  • Magnetization reversal in magnetic nanotubes, E. E. Vogel, D. Altbir, J. Escrig, P. Landeros, S. Allende, and E. Salcedo, V Taller Regional de Física Estadística y Aplicaciones a la Materia Condensada, San Rafael, Argentina, May 2007.
  • Magnetic phases: From wires to nanotubes, D. Altbir, J. Escrig, P. Landeros, S. Allende, E. Salcedo, E. E. Vogel, and K. Nielsch, VIII LAW3M, Río de Janeiro, Brazil, August 2007.
  • Nanoestructuras magnéticas, P. Landeros, invited talk, III Taller de Jóvenes Científicos Milenio, Punta de Tralca, Chile, September 2006.
  • Competing Magnetic Phases In Cylindrical Nanoparticles, J. Escrig, P. Landeros, D. Altbir, and E. E. Vogel, XVII International Conference on Magnetism, Kyoto, Japan, August 2006.

Publications

2019
  1. V. Sluka, T. Schneider, R.A. Gallardo, A. Kákay, M. Weigand, T. Warnatz, R. Mattheis, A. Roldán-Molina, P. Landeros, V. Tiberkevich, A. Slavin, G. Schütz, A. Erbe, A. Deac, J. Lindner, J. Raabe, J. Fassbender, S. Wintz
    Emission and propagation of 1D and 2D spin waves with nanoscale wavelengths in anisotropic spin textures
    Nature Nanotechnologyvolume 14, pages328–333 (2019)
  2. M. Langer, R.A. Gallardo, T. Schneider, S. Stienen, A. Roldán-Molina, Y. Yuan, K. Lenz, J. Lindner, P. Landeros, J. Fassbender
    Spin-wave modes in transition from a thin film to a full magnonic crystal
    Phys. Rev. B 99, 024426
  3. R.A. Gallardo, D. Cortés-Ortuño, T. Schneider, A. Roldán-Molina, Fusheng Ma, R.E. Troncoso, K. Lenz, H. Fangohr, J. Lindner, P. Landeros
    Flat Bands, Indirect Gaps, and Unconventional Spin-Wave Behavior Induced by a Periodic Dzyaloshinskii-Moriya Interaction
    Phys. Rev. Lett. 122, 067204
  4. R.A. Gallardo, P. Alvarado-Seguel, T. Schneider, C. Gonzalez-Fuentes, A. Roldán-Molina, K. Lenz, J. Lindner, P. Landeros
    Spin-wave non-reciprocity in magnetization-graded ferromagnetic films
    New J. Phys. 21 (2019) 033026

2018
  1. R.A. Gallardo, T. Schneider, A. Roldán-Molina, M. Langer, A.S. Núñez, K. Lenz, J. Lindner, P. Landeros
    Symmetry and localization properties of defect modes in magnonic superlattices
    Phys. Rev. B 97, 174404 (2018)
  2. A.F. Franco, P. Landeros
    A multi-state synthetic ferrimagnet with controllable switching near room temperature
    J. Phys. D: Appl. Phys. 51 (2018) 225003 (9pp)
  3. H.M. Baghramyan, M.G. Barseghyan, A.A. Kirakosyan, J.H. Ojeda, J. Bragard, P. Laroze
    Modeling of anisotropic properties of double quantum rings by the terahertz laser field
    Scientific Report (2018) 8:6145
  4. R.A. Gallardo, T. Schneider, A. Roldán-Molina, M. Langer, J. Fassbender, K. Lenz, J. Lindner, P. Landeros
    Dipolar interaction induced band gaps and flat modes in surface-modulated magnonic crystals
    Phys. Rev. B 97, 144405 (2018)

2017
  1. C. Gonzalez-Fuentes, C. Garcia, P. Landeros, R.A. Gallardo
    Theory of ferromagnetic resonance driven by the combined action of spin-transfer torque and voltage-controlled magnetic anisotropy
    Phys. Rev. B 96, 174440
  2. M. Langer, F. Röder, R.A. Gallardo, T. Schneider, S. Stienen, C. Gatel, R. Hübner, L. Bischoff, K. Lenz, J. Lindner, P. Landeros, J. Fassbender
    Role of internal demagnetizing field for the dynamics of a surface-modulated magnonic crystal
    Phys. Rev. B 95, 184405 – Published 5 May 2017
  3. D.F. Gutierrez-Guzman, L.I. Lizardi, J.A. Otálora, P. Landeros
    Hyperthermia in low aspect-ratio magnetic nanotubes for biomedical applications
    Appl. Phys. Lett. 110, 133702 (2017) | Published 28 March
  4. S. Tacchi, R.E. Troncoso, M. Ahlberg, G. Gubbiotti, M. Madami, J. Åkerman, P. Landeros
    Interfacial Dzyaloshinskii-Moriya Interaction in Pt / CoFeB Films: Effect of the Heavy-Metal Thickness
    Phys. Rev. Lett. 118, 147201 | Published 3 April

2016
  1. A.F. Franco, P. Landeros
    Ferromagnetic resonance of an heterogeneous multilayer system with interlayer exchange coupling: an accessible model
    J. Phys. D: Appl. Phys. 49 (2016) 385003 (11pp); Published 1 Sep 2016

2015
  1. C. Gonzalez-Fuentes, R.A. Gallardo, P. Landeros
    Role of polarizer-tilting-angle in zero-field spin-transfer nano-oscillators with perpendicular anisotropy
    Appl. Phys. Lett. 107, 142402 (2015); Published 5 Oct 2015

2016
  1. R.A. Gallardo, R.L. Rodríguez-Suárez, P. Landeros
    Defect-induced magnon scattering mechanisms in exchange-coupled bilayers
    Journal of Applied Physics 120, 223904 (2016); Published (web) 15 Dec 2016
  2. A. Riveros, N. Vidal-Silva, P. Landeros, D. Altbir, E.E. Vogel, J. Escrig
    Magnetic vortex core in cylindrical nanostructures: Looking for its stability interms of geometric and magnetic parameters
    Journal of Magnetism and Magnetic Materials 401 (2016) 848–852; Published 1 Mar 2016

2015
  1. J.A. Otálora, D. Cortés-Ortuño, D. Görlitz, K. Nielsch, P. Landeros
    Oersted field assisted magnetization reversal in cylindrical core-shell nanostructures
    J. Appl. Phys. 117, 173914 (2015); Published 7 May 2015

2012
  1. J. A. Otálora, J. A. López-López, A. S. Núñez, and P. Landeros
    Domain wall manipulation in magnetic nanotubes induced by electric current pulses
    Journal of Physics: Condensed Matter 24, 436007

2014
  1. O. Idigoras, A. K. Suszka, P. Vavassori, B. Obry, B. Hillebrands, P. Landeros, and A. Berger
    Magnetization reversal of in-plane uniaxial Co films and its dependence on epitaxial alignment
    Journal of Applied Physics 115, 083912
  2. R. A. Gallardo, A. Banholzer, K. Wagner, M. Körner, K. Lenz, M. Farle, J. Lindner, J. Fassbender, and P. Landeros
    Splitting of spin-wave modes in thin films with arrays of periodic perturbations: theory and experiment
    New Journal of Physics 16, 023015

2013
  1. E.R.P. Novais, S. Allende, D. Altbir, P. Landeros, F. Garcia, A.P. Guimaraes
    Effect of perpendicular uniaxial anisotropy on the annihilation fields of magnetic vortices
    J. Appl. Phys. 114, 153905 (2013); Published 21 Oct 2013
  2. J. A. Otálora, F. Ritz-Kohler, and P. Landeros
    Domain wall motion in magnetic nanotubes induced with time dependent fields
    Spin 3, 134004
  3. M. Körner, K. Lenz, R. A. Gallardo, M. Fritzsche, A. Mücklich, S. Facsko, J. Lindner, P. Landeros, and J. Fassbender
    Two-magnon scattering in permalloy thin films due to rippled substrates
    Physical Review B 88, 054405
  4. J. A. Otálora, J. A. López-López, P. Landeros, P. Vargas and A. S. Núñez
    Breaking of chiral symmetry in vortex domain wall propagation in ferromagnetic nanotubes
    Journal of Magnetism and Magnetic Materials 341, 86
  5. D. Cortes-Ortuño and P. Landeros
    Influence of the Dzyaloshinskii-Moriya interaction on the spin-wave spectra of thin films
    Journal of Physics: Condensed Matter 25, 156001

2012
  1. R. A. Gallardo, O. Idigoras, P. Landeros, and A. Berger
    Analytical derivation of critical exponents of the dynamic phase transition in the mean-field approximation
    Physical Review E 86, 051101
  2. J. A. López-López, D. Cortés-Ortuño, and P. Landeros
    Role of anisotropy on the domain wall properties of ferromagnetic nanotubes
    Journal of Magnetism and Magnetic Materials 324, 2024
  3. J. A. Otálora, J. A. López-López, P. Vargas, and P. Landeros
    Chirality switching and propagation control of a vortex domain wall in ferromagnetic nanotubes
    Applied Physics Letters 100, 72407

2009
  1. J. Lindler, I. Barsukov, C. Raeder, C. Hassel, O. Posth, R. Meckenstock, P. Landeros, D. L. Mills
    Two-magnon damping in thin films in case of canted magnetization: Theory versus experiments
    Physical Review B 80, 224421

2010
  1. J. Mejía-López, D. Altbir, P. Landeros, J. Escrig, A.H. Romero, Igor V. Roshchin, C.P. Li, M.R. Fitzsimmons, X. Battle, Iván K. Schuller
    Development of vortex state in circular magnetic nanodots: Theory and experiments
    Phys. Rev. B 81, 184417; Published 18 May 2010
  2. P. Landeros and A. Núñez
    Domain wall motion on magnetic nanotubes
    Journal of Applied Physics 108, 033917
  3. P. Landeros, R. A. Gallardo, O. Posth, J. Lindner, and D. L. Mills
    Role of the spin-transfer in the ferromagnetic resonance response of thin films
    Physical Review B 81, 214434
  4. A. L. González, P. Landeros, A. Núñez
    Spin wave spectrum of magnetic nanotubes
    Journal of Magnetism and Magnetic Materials, 322 530-535

2011
  1. N. Reckers, J. Cucchiara, O. Posth, C. Hassel, F. M. Römer, R. Narkovic, R. A. Gallardo, P. Landeros, H. Zähres, S. Mangin, J. A. Katine, E. E. Fullerton, G. Dumpich, R. Meckenstock, J. Lindner, and M. Farle
    Effect of microwave irradiation on spin-torque driven magnetization precession in nanopillars with magnetic perpendicular anisotropy
    Physical Review B 83, 184427
  2. R. L. Rodríguez-Suárez, A. B. Oliveira, J. R. L. de Almeida, T. Bueno, L. H. Vilela- Leão, P. Landeros, S. M. Rezende, and A. Azevedo
    Critical thickness investigation of magnetic properties in exchange-coupled bilayers
    Physical Review B, 83 224418
  3. E.R.P. Novais, P. Landeros, A.G.S. Barbosa, M.D. Martins, F. Garcia, and A.P. Guimarães
    Properties of magnetic nanodots with perpendicular anisotropy
    J. Appl. Phys. 110 053917
  4. O. Idigoras, A.K. Suszka, P. Vavassori, P. Landeros, J.M. Porro, and A. Berger
    Collapse of hard-axis behavior in uniaxial Co films
    Phys. Rev. B 84 132403

2012
  1. P. Landeros and D. L. Mills
    Spin waves in periodically perturbed films
    Physical Review B 85, 054424
  2. I. Barsukov, P. Landeros, R. Meckenstock, J. Lindner, D. Spoddig, Zi- An Li, B. Krumme, H. Wende, D. L. Mills, and M. Farle
    Tuning magnetic relaxation by oblique deposition
    Physical Review B 85, 014420
  3. R. L. Rodríguez-Suárez, L. H. Vilela-Leão, T. Bueno, J. B. S. Mendes, P. Landeros, S. M. Rezende, and A. Azevedo
    Tunable misalignment of ferromagnetic and antiferromagnetic easy axes in exchange biased bilayers
    Physical Review Letters 100, 242406 (2012); Published 13 Jun 2012

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