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相关论文: Effect of Joule heating in current-driven domain w…

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The critical current density Jc in type-II conventional and high-Tc superconducting bulk materials is investigated based on the quantum theory for the vortex dynamics. It is shown that for a constant magnetic field, the critical current…

超导电性 · 物理学 2012-04-17 Ming Ju Chou , Wei Yeu Chen

Local conduction at domains and domains walls is investigated in BiFeO3 thin films containing mostly 71o domain walls. Measurements at room temperature reveal conduction through 71o domain walls. Conduction through domains could also be…

材料科学 · 物理学 2013-05-29 S. Farokhipoor , B. Noheda

The applied voltage along a wire leads to a constant current density and, in turn, the azimuthal magnetic field. The absence of the radial current in a sample bulk requires nonzero radial(Hall) electric field to be present. We show that the…

介观与纳米尺度物理 · 物理学 2019-08-30 M. V. Cheremisin

Measurements of the ac magnetic susceptibility of perpendicularly magnetized Fe/2ML Ni/W(110) ultrathin films show a clear signature of the dynamics of domain growth and domain density changes in the striped domain pattern that this system…

材料科学 · 物理学 2015-05-18 N. Abu-Libdeh D. Venus

Current driven domain wall motion in curved Heavy Metal/Ferrimagnetic/Oxide multilayer strips is investigated using systematic micromagnetic simulations which account for spin-orbit coupling phenomena. Domain wall velocity and…

材料科学 · 物理学 2024-01-25 David Osuna Ruiz , Óscar Alejos , Víctor Raposo , Eduardo Martínez

The measurements of the high - temperature current - voltage characteristics of MoS2 thin - film transistors show that the devices remain functional to temperatures of at least as high as 500 K. The temperature increase results in decreased…

材料科学 · 物理学 2015-06-23 C. Jiang , S. L. Rumyantsev , R. Samnakay , M. S. Shur , A. A. Balandin

We consider Joule heating caused by dissipation of the magnetic field in the neutron star crust. This mechanism may be efficient in maintaining a relatively high surface temperature in very old neutron stars. Calculations of the thermal…

天体物理学 · 物理学 2009-10-30 Juan A. Miralles , Vadim Urpin , Denis Konenkov

We study current-induced deterministic magnetization switching and domain wall motion via polar Kerr microscopy in all-amorphous W$_{66}$Hf$_{34}$/CoFeB/TaO$_\text{x}$ with perpendicular magnetic anisotropy and large spin Hall angle.…

材料科学 · 物理学 2020-09-23 Katharina Fritz , Lukas Neumann , Markus Meinert

We report on the room-temperature switching of 1T-TaS2 thin-film charge-density-wave devices, using nanosecond-duration electrical pulsing to construct their time-resolved current-voltage characteristics. The switching action is based upon…

Current-induced domain wall (DW) displacements in an array of ultrathin Pt/Co/AlOx wires with perpendicular magnetic anisotropy have been directly observed by wide field Kerr microscopy. DWs in all wires in the array were driven…

其他凝聚态物理 · 物理学 2009-11-13 T. A. Moore , I. M. Miron , G. Gaudin , G. Serret , S. Auffret , B. Rodmacq , A. Schuhl , S. Pizzini , J. Vogel , M. Bonfim

The Joule heating effect on graphene electronic properties is investigated by using full-band Monte Carlo electron dynamics and three-dimensional heat transfer simulations self-consistently. A number of technologically important substrate…

介观与纳米尺度物理 · 物理学 2011-11-01 X. Li , B. D. Kong , J. M. Zavada , K. W. Kim

Using the strong temperature dependent resistance of a normal metal wire in proximity to a superconductor, we have been able to measure the local temperature of electrons heated by flowing a dc current in a metallic wire to within a few…

介观与纳米尺度物理 · 物理学 2009-11-07 J. Aumentado , J. Eom , V. Chandrasekhar , P. M. Baldo , L. E. Rehn

We theoretically study the spin-polarized current flowing through a Josephson junction (JJ) in a spin injection device. When the spin-polarized current is injected from a ferromagnet (FM) in a superconductor (SC), the charge current is…

超导电性 · 物理学 2009-10-31 S. Takahashi , T. Yamashita , T. Koyama , S. Maekawa , H. Imamura

Thickness (dF) and concentration (x) dependence of the Curie temperature of NixCu100-x(dF) ferromagnetic alloy layers (x =0.55,0.65, dF =[3nm{\div}12nm]) being in contact with a vanadium layer was studied. The Curie temperature of the…

A detailed study is presented of the decaying solar active region NOAA 10103 observed with the Coronal Diagnostic Spectrometer (CDS), the Michelson Doppler Imager (MDI) and the Extreme-ultraviolet Imaging Telescope (EIT) onboard the Solar…

天体物理学 · 物理学 2007-05-23 R. O. Milligan , P. T. Gallagher , M. Mathioudakis , F. P. Keenan , D. S. Bloomfield

A theoretical and numerical investigations of the quantum tunneling of the domain walls in ferromagnets and weak ferromagnets was performed taking into account the interaction between walls and thermal excitations of a crystal. The…

介观与纳米尺度物理 · 物理学 2009-10-31 V. V. Makhro

We study current-driven magnetization switching in nanofabricated Ni84Fe16/Cu/Ni84Fe16 trilayers at 295 K and 4.2 K. The shape of the hysteretic switching diagram at low magnetic field changes from 295 K to 4.2 K. The reversible behavior at…

材料科学 · 物理学 2009-11-10 S. Urazhdin , Norman O. Birge , W. P. Pratt , J. Bass

The electric field (EF) effect on the magnetic domain structure of a Pt/Co system was studied, where an EF was applied to the top surface of the Co layer. The width of the maze domain was significantly modified by the application of the EF…

We study theoretically the current-induced magnetic domain wall motion in a metallic nanowire with perpendicular magnetic anisotropy. The anisotropy can reduce the critical current density of the domain wall motion. We explain the reduction…

介观与纳米尺度物理 · 物理学 2009-11-13 Soon-Wook Jung , Woojin Kim , Taek-Dong Lee , Kyung-Jin Lee , Hyun-Woo Lee

We analyze the short-time behavior of the heat and charge currents through nanoscale conductors exposed to a temperature gradient. To this end, we employ Luttinger's thermomechanical potential to simulate a sudden change of temperature at…

介观与纳米尺度物理 · 物理学 2016-04-25 F. G. Eich , M. Di Ventra , G. Vignale