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Type I Abelian Higgs strings: evolution and Cosmic Microwave Background constraints
(APS, 2019-04-26)
We present results from the first simulations of networks of Type I Abelian Higgs cosmic strings to include both matter and radiation eras and cosmic microwave background (CMB) constraints. In Type I strings, the string ...
Contribution of defects to the spin relaxation in copper nanowires
(Americal Physical Society, 2013-03-18)
The contributions to the spin relaxation in copper (Cu) nanowires are quantified by carefully analyzing measurements of both charge and spin transport in lateral spin valves as a function of temperature and thickness. The ...
Coupled spin and electron-phonon interaction at the Tl/Si(111) surface from relativistic first-principles calculations
(American Physical Society, 2018-12-28)
We investigate the role played by the electron spin and the spin-orbit interaction in the exceptional electron-phonon coupling at the Tl/Si(111) surface. Our first-principles calculations demonstrate that the particular ...
Role of Ce substitution in the magneto-crystalline anisotropy of tetragonal ZrFe10Si2
(Elsevier, 2018-10-25)
We report the study of Zr1-xCexFe10Si2 (x = 0.0, 0.3 and 0.6) compounds, with tetragonal ThMn12 structure, by means of neutron diffraction and Mössbauer spectroscopy to understand the role of Ce in the increasing ...
Temperature dependence of spin diffusion length and spin Hall angle in Au and Pt
(Americal Physical Society, 2015-01-05)
We have studied the spin transport and the spin Hall effect as a function of temperature for platinum (Pt) and gold (Au) in lateral spin valve structures. First, by using the spin absorption technique, we extract the spin ...
Temperature dependence of spin polarization in ferromagnetic metals using lateral spin valves
(Americal Physical Society, 2013-11-15)
Spin injection properties of ferromagnetic metals are studied and are compared by using highly reproducible cobalt/copper and permalloy/copper lateral spin valves (LSVs) with transparent contacts, fabricated with a careful ...
Sensitiveness of the ratio between monovacancy and bulk positron lifetimes to the approximations used in the calculations: Periodic behaviour
(Elsevier, 2012-05-09)
Positron lifetimes have been calculated in bulk and monovacancies for most of the elements of the periodic table. Self-consistent and non-self-consistent schemes have been used for the calculation of the electronic structure ...
Simultaneous detection of the spin-Hall magnetoresistance and the spin-Seebeck effect in platinum and tantalum on yttrium iron garnet
(Americal Physical Society, 2014-11-26)
The spin-Seebeck effect (SSE) in platinum (Pt) and tantalum (Ta) on yttrium iron garnet has been investigated by both externally heating the sample (using an on-chip Pt heater on top of the device) and by current-induced ...
Structural and magnetic properties of hexagonal Fe3Sn prepared by non-equilibrium techniques
(Elsevier, 2018-07-29)
We report a thorough structural and magnetic study of Fe3Sn produced either by solid state reaction or by mechanical alloying in order to figure out which of the two techniques is most suitable for obtaining the purest ...
Spin Hall magnetoresistance at Pt/CoFe2O4 interfaces and texture effects
(AIP publishing, 2014-10-08)
We report magnetoresistance measurements on thin Pt bars grown on epitaxial (001) and (111) CoFe2O4 (CFO) ferrimagnetic insulating films. The results can be described in terms of the recently discovered spin Hall ...