Materials Literature
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Epitaxial Sn-doped In2O3 (ITO) thin films were grown using oxygen plasma-assisted molecular beam epitaxy (MBE) on (001) oriented Yttria Stabilized Zirconia. Low-energy-electron-diffraction shows that ITO(001) surface is oxygen terminated and has a c(1×1)-structure with p4g symmetry. Atomically-resolved Scanning Tunnel…
Brillouin spectra have been collected in situ at temperatures up to ∼1000 K for different crystallographic directions from two single crystal plates of LaAlO(3) perovskite. Elastic moduli derived from these, together with heat capacity, spontaneous strain and Raman data from the literature, have then been used to cali…
The advanced fabrication and surface engineering of superparamagnetic iron oxide nanoparticles (SPIONs) could offer excellent physiochemical features for noninvasive tumor imaging and drug delivery. The key issues of realization of maximized selective cancer targeting of SPIONs are minimization of uptake by macrophage…
Free-standing silk films are useful materials to manufacture nanopatterned optical elements and to immobilize bio-dopants such as enzymes while maintaining their biological activity. These traits were combined by incorporating hemoglobin into free-standing silk diffraction gratings to fabricate chemically responsive o…
Abstract Permanently antistatic composites composed of high impact polystyrene (HIPS) and LiClO 4 doped thermoplastic polyurethane/poly(ethylene oxide) (TPU/PEO) solid‐polymer‐electrolyte (SPE) were successfully prepared in a Haake torque rheometer. The HIPS/SPE composites with different ionic conductivities could be…
In this work, the integration and its electrical properties of a carbon nanotube (CNT) interconnect for semiconductor applications are presented. A series array of 1000 vias made of vertically grown CNTs was achieved with uniform electrical resistance within the wafer. The integration of CNT interconnection was implem…
We have used a femtosecond pump-probe impulsive Raman technique to explore the ultrafast dynamics of micelle suspended single-walled carbon nanotubes (SWNTs) in various pH environments. The structures of coherent phonon spectra of the radial breathing modes exhibit significant pH dependence, to which we attribute the…
The syntheses, molecular structures, and magnetic properties of a dicopper(II) complex, [Cu(2)(HL(1))(2)](ClO(4))(2) (1), and its nickel(II) analog, [Ni(2)(HL(1))(2)](ClO(4))(2) (2), of a beta-amino ketoxime ligand (H(2)L(1) = 4,4,9,9-tetramethyl-5,8-diazadodecane-2,11-dione dioxime) are discussed. The metal centers i…
What is the origin of the sharp slowdown displayed by glassy systems? Physical common sense suggests there must be a concomitant growing correlation length, but finding this length has been nontrivial. In random first-order theory, it is given by the size of amorphous excitations, which depends on a balance between th…
Remarkable ferroelectric property has been observed in the glycine picrate single crystal though it crystallizes in centrosymmetric structure. An anomaly at 105 °C was observed in dielectric and ac conductivity measurements. The activation energies for conduction (Ea) below and above this temperature are found to be 0…
An Nd3+-doped Li3Ba2Y3(WO4)8 crystal with dimensions up to 32 × 20 × 14 mm3 has been grown by the TSSG method. The Li3Ba2Y3(WO4)8 crystal crystallizes in the monoclinic system with the space group C2/c. The unit cell parameters are a = 5.181(2) Å, b = 12.677(7) Å, c = 19.161(10) Å, β = 92.237(13)° and Z = 2. The Li3Ba…
A multifunctional one-dimensional nanostructure incorporating both CdSe quantum dots (QDs) and Fe(3)O(4) nanoparticles (NPs) within a SiO(2)-nanotube matrix is successfully synthesized based on the self-assembly of preformed functional NPs, allowing for control over the size and amount of NPs contained within the comp…
Magnets composed of organic components that provide both spin and spin coupling to stabilize ferromagnetic ordering were first realized with the ionic, electron transfer salt [Fe(C5Me5)2]+[TCNE]˙− (TCNE = tetracyanoethylene), which orders at 4.8 K (Tc). After more than two decades of study, its structure, as well as t…
Abstract In this work, the effect of the presence of silica nanoparticles in the structure, dynamics, and thermodegradation of poly(methyl methacrylate), PMMA, has been considered. A new method for preparing nanocomposites has been considered in which high‐energy ball milling, HEBM, was used to uniformly disperse nano…
This paper presents an original method for estimation of the induction motor parameters, including iron loss, with measurements in the sinusoidal steady-state mode. Based on a change of parameter yielding a model that is linear with respect to the new set of parameters, this method allows parameter estimation with low…
Nanometer‐sized crystallites of Y‐type strontium hexaferrite, Sr 2 Ni 2 Fe 12 O 22 and its Mn‐ and Cr‐doped derivatives have been synthesized by the sol–gel method. Y‐type phase formation was achieved at a considerably lower temperature of 950°C than is required in the traditional solid‐state method (1200°C). The effe…
Ionothermal synthesis was applied to the formation of polyoxometalates (POMs) and two new compounds [EMIM](8)Na(9)[WFe(9)(micro(3)-O)(3)(micro(2)-OH)(6)O(4)H(2)O(SiW(9)O(34))(3)].7H(2)O (, [EMIM](8)Na(9)[].7H(2)O, EMIM = 1-ethyl-3-methylimidazolium) and [EMIM](4)[SiMo(12)O(40)].12H(2)O (), have been successfully produ…
We investigated fundamental parameters such as the Curie temperature, biaxial elastic modulus, and thermal expansion coefficient of (K,Na)NbO 3 (KNN) films on Pt/Ti/SiO 2 /Si substrates. From the temperature dependence of the dielectric constant of the KNN films, their Curie temperature was approximately 360 °C; this…
High-quality epitaxial ZnO thin films were grown by an ultrasonic spray-assisted mist chemical vapor deposition (CVD) on a-plane sapphire substrates with ZnO buffer layers. The ZnO thin films were grown with c -axis orientation without notable rotational domains. Surface morphologies and electrical properties were mar…
p -type conduction in hexagonal boron nitride (hBN) films was achieved by beryllium implantation and subsequent rapid thermal annealing treatment. The dependence of phase composition and electrical properties of hBN films on the implantation fluence and annealing was studied. A maximum resistivity reduction by six ord…