Materials Literature
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Steady magnetization precession can be excited by a DC spin-polarized current in a spin-valve with combined in-plane (IP) and out-of-plane (OP) dual polarizers. The precession frequency is proportional to the strength of spin-torque generated by the OP polarizer but less sensitive to the IP polarizer, which can be suc…
A series of platinum(II) complexes with the formulas Pt(diimine)(pip(2)NCNH(2))(L)(2+) [pip(2)NCNH(2)(+) = 2,6-bis(piperidiniummethyl)phenyl cation; L = Cl, Br, I, NCS, OCN, and NO(2); diimine = 1,10-phenanthroline (phen), 5-nitro-1,10-phenanthroline (NO(2)phen), and 5,5'-ditrifluoromethyl-2,2'-bipyridine (dtfmbpy)] w…
On the basis of density functional theory calculations, we study the electronic and magnetic properties of an iron phthalocyanine (FePc) nanosheet (FePcNST) and its derivatives, nanoribbons (FePcNRs) and nanotubes (FePcNTs). The GGA+ U +SOC calculations reveal that the interesting in-plane magnetic anisotropy comes fr…
Free-space nanostructures are the fundamental building blocks of three-dimensional (3D) nanodevices with multi-functionality beyond that achievable by planar devices. Here we developed a reliable technique for the site-specific post-growth geometrical manipulation of freestanding superconducting nanowires using ion-be…
We revealed a notable internal thermal effect on the yielding of metallic glasses with the aid of a newly developed microscopic model focusing on the interaction of incipient localized shear events. It is shown that at the high strain rate, localized heating in metallic glasses instead of localized structure change pl…
The crossover method can be used in the classical equations of state (EOSs) to study the singular behavior of fluids in the critical region. However, this usually involves introducing additional system-dependent parameters and changing the values of classical parameters in the EOS with curve fits that require large am…
We have investigated the perpendicular magnetic anisotropy (PMA) at the ferromagnetic/antiferromagnetic interface using [Pt/Co] n /α-Cr 2 O 3 superlattices. By changing the number of stacking periods, the contributions of the Co/α-Cr 2 O 3 and Pt/Co interfaces to the PMA are separately estimated. The results indicate…
This chapter contains sections titled: Abstract Introduction PWSCC Historical Perspective Research NRC Observations Conclusions
Abstrak Pada makalah ini, distribusi medan listrik, tegangan dan suhu dalam kabel bawah tanah 3 fasa dalam penutup pentanahan dianalisis dan dibentangkan. Tidak seperti kabel skrin 3 fasa, distribusi regangan dalam kabel yang berikat tidaklah radial. Sebuah kabel daya tegangan tinggi 3 fasa yang dikubur dalam tanah da…
The appearance of ferromagnetic correlations among $\ensuremath{\pi}$ electrons of phenanthrene (C${}_{14}$H${}_{10}$) molecules in the herringbone structure is proven for K doped clusters both by ab initio quantum-chemistry calculations and by the direct solution of the many-body Pariser-Parr-Pople Hamiltonian. Magne…
Recently two branches of weakly dispersive collective modes have been discovered in underdoped cuprates by inelastic neutron scattering. Polarization analysis reveals that the modes are magnetic excitations. They are visible only for temperatures below the transition temperature to a broken symmetry phase, which was d…
Solvent effect on protein conformation and folding mechanism of E6-associated protein (E6ap) peptide are investigated using a recently developed charge update scheme termed as adaptive hydrogen bond-specific charge (AHBC). On the basis of the close agreement between the calculated helix contents from AHBC simulations…
In catalysis applications, it is desirable to have nanorods of smaller diameter. However, if the separation of nanorods is smaller than their diameter, nanorods will merge to become dense films. The separation of nanorods derives from the separation of nucleating clusters on the substrate. This letter reports a theory…
The fabrication of close-packed clover-shaped photonic crystal structure on GaN by dual-step nanosphere lithography is demonstrated. By shrinkage of spheres prior to pattern transfer, a non-closed-packed clover-shaped photonic bandgap (PBG) structure, as designed by modified 3D finite-difference time-domain simulation…
Cubic Al0.3Ga0.7N/GaN heterostructures were grown by plasma-assisted molecular beam epitaxy on 3C-SiC (001) substrates. A profile of the electrostatic potential across the cubic-AlGaN/GaN heterojunction was obtained using electron holography in the transmission electron microscope. The experimental potential profile i…
The evaluation of the possibilities to use coal-tar pitch modified with waste poly(ethylene terephthalate) or phenol–formaldehyde resin for the preparation of activated carbons was carried out. The measurement of thermal analysis (DSC), softening point, coking value, content of components insoluble in toluene and quin…
Two series of perpendicular exchange coupled composites (ECC) films are prepared by dc magnetron sputtering, FePt(5)/[Co(0.2)/Pt(0.3)]N (ECC-I-N) and FePt(5)/[Co(0.2)/Pt(0.6)]N (ECC-II-N), respectively. Structure analyses reveal the epitaxial growth on (001) oriented L10 FePt island-like grains of [Co/Pt]N with (200)…
Organic–inorganic hybrid polyaspartimide polymers were synthesized via Michael addition by using octa(aminophenyl)silsesquioxane (OAPS) (2.5–30 wt %), leading to a family of porous polymers. The formation of NH structure during Michael addition assists in CO2 capture. The CO2 capture capacity increased with increasin…
Electrical properties of Nb-doped titanium oxide films were evaluated with respect to annealing temperatures. Although an amorphous phase is preserved up to 450 °C, x-ray absorption spectroscopy analyses indicate that crystal field splitting in the conduction band begins to take place at this temperature. Such molecul…
We demonstrate single-electron pumping in a gate-defined carbon nanotube double quantum dot. By periodic modulation of the potentials of the two quantum dots, we move the system around charge triple points and transport exactly one electron or hole per cycle. We investigate the pumping as a function of the modulation…