Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Caballero, Nirvana"'
Autor:
Caballero, Nirvana, Giamarchi, Thierry
The theory of disordered elastic systems is one of the most powerful frameworks to assess the physics of multiple systems that span from ferromagnets to migrating biological cells. In this formalism, one assumes that the system can be described with
Externí odkaz:
http://arxiv.org/abs/2211.12258
We present a field theory to describe the composition of a surface spontaneously exchanging matter with its bulk environment. By only assuming matter conservation in the system, we show with extensive numerical simulations that, depending on the matt
Externí odkaz:
http://arxiv.org/abs/2205.03306
Understanding and controlling the motion, stability, and equilibrium configuration of ferroelectric domain walls is key for their integration into potential nanoelectronics applications, such as ferroelectric racetrack memories. Using piezoresponse f
Externí odkaz:
http://arxiv.org/abs/2111.11136
Publikováno v:
Phys. Rev. E 105, 044138 (2022)
Elastic interfaces display scale-invariant geometrical fluctuations at sufficiently large lengthscales. Their asymptotic static roughness then follows a power-law behavior, whose associated exponent provides a robust signature of the universality cla
Externí odkaz:
http://arxiv.org/abs/2110.13785
Autor:
Caballero, Nirvana
Recent experiments show striking unexpected features when alternating square magnetic field pulses are applied to ferromagnetic samples: domains show area reduction and domains walls change their roughness. We explain these phenomena with a simple sc
Externí odkaz:
http://arxiv.org/abs/2009.14205
Publikováno v:
Phys. Rev. B 102, 104204 (2020)
Controlling interfaces is highly relevant from a technological point of view. However, their rich and complex behavior makes them very difficult to describe theoretically, and hence to predict. In this work, we establish a procedure to connect two le
Externí odkaz:
http://arxiv.org/abs/2006.15130
Autor:
Guruciaga, Pamela C., Caballero, Nirvana, Jeudy, Vincent, Curiale, Javier, Bustingorry, Sebastian
Publikováno v:
J. Stat. Mech. (2021) 033211
Along with experiments, numerical simulations are key to gaining insight into the underlying mechanisms governing domain wall motion in thin ferromagnetic systems. However, a direct comparison between numerical simulation of model systems and experim
Externí odkaz:
http://arxiv.org/abs/1912.09392
Autor:
Caballero, Nirvana B., Ferrero, Ezequiel E., Kolton, Alejandro B., Curiale, Javier, Jeudy, Vincent, Bustingorry, Sebastian
Publikováno v:
Phys. Rev. E 97, 062122 (2018)
Magnetic domain wall motion is at the heart of new magneto-electronic technologies and hence the need for a deeper understanding of domain wall dynamics in magnetic systems. In this context, numerical simulations using simple models can capture the m
Externí odkaz:
http://arxiv.org/abs/1801.07324
Publikováno v:
The Journal of Chemical Physics 147, 184501 (2017)
Family of compounds CBr$_n$Cl$_{4-n}$ has been proven helpful in unraveling microscopic mechanisms responsible of glassy behavior. Some of the family members show translational ordered phases with minimal disorder which appears to reveal glassy featu
Externí odkaz:
http://arxiv.org/abs/1709.07733
Autor:
Caballero, Nirvana B., Aguirre, Iván Fernández, Albornoz, Lucas J., Kolton, Alejandro B., Rojas-Sánchez, Juan Carlos, Collin, Sophie, George, Jean Marie, Pardo, Rebeca Diaz, Jeudy, Vincent, Bustingorry, Sebastian, Curiale, Javier
Publikováno v:
Phys. Rev. B 96, 224422 (2017)
Magnetic field driven domain wall velocities in [Co/Ni] based multilayers thin films have been measured using polar magneto-optic Kerr effect microscopy. The low field results are shown to be consistent with the universal creep regime of domain wall
Externí odkaz:
http://arxiv.org/abs/1708.03674