Materials Literature
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In this paper, we report the signature of spin gapless semiconductor (SGS) in CoFeMnSi that belongs to the Heusler family. SGS is a new class of magnetic semiconductors which have a band gap for one spin subband and zero band gap for the other, and thus are useful for tunable spin transport based applications. We show…
Chitosan is a unique biopolymer in the respect that it is abundant, cationic, low-toxic, non-immunogenic and biodegradable. The relative occurrence of the two monomeric building units (N-acetyl-glucosamine and d-glucosamine) is crucial to whether chitosan is predominantly an ampholyte or predominantly a polyelectrolyt…
Chitin (β-(1-4)-poly-N-acetyl-D-glucosamine) is widely distributed in nature and is the second most abundant polysaccharide after cellulose. It is often converted to its more deacetylated derivative, chitosan. Previously, many reports have indicated the accelerating effects of chitin, chitosan, and its derivatives on…
Replacement of Dy and substitution of Nd in NdFeB-based permanent magnets by Ce, the most abundant and lowest cost rare earth element, is important because Dy and Nd are costly and critical rare earth elements. The Ce, Co co-doped alloys have excellent high-temperature magnetic properties with an intrinsic coercivity…
This paper reveals the key importance of surface oxygen defects in the oxidation catalytic activity of nanostructured ceria. A series of nanostructured rods and cubes with different physico–chemical properties have been synthesized, characterized and tested in the total toluene oxidation. The variation of the temperat…
Vitrimers are a new class of polymeric materials with very attractive properties, since they can be reworked to any shape while being at the same time permanently cross‐linked. As an alternative to the use of transesterification chemistry, we explore catalyst‐free transamination of vinylogous urethanes as an exchange…
ADVERTISEMENT RETURN TO ISSUEPREVReviewNEXTSupramolecular Polymers: Historical Development, Preparation, Characterization, and FunctionsLiulin Yang, Xinxin Tan, Zhiqiang Wang, and Xi Zhang*View Author Information Key Laboratory of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua Unive…
Quantitative adsorption structure determinations on quasicrystals are scarce because most techniques for measuring surface structures are not well suited to the complex and infinite unit cells of quasicrystals. The normal incidence standing x-ray wave field technique presents a solution to these problems because it ca…
In this work, electric field-induced strain properties of sodium potassium bismuth titanate single fiber were investigated as a function of temperature. The results show that the normalized strain increases significantly with increasing temperature and reaches the maximum value of 315 pm/V at 160°C. Meanwhile, the neg…
Magnetotransport properties of La2/3Sr1/3MnO3/LaAlO3/Pt tunnel junctions have been thoroughly analyzed, as a function of temperature and magnetic field, to test the suitability of LaAlO3 for insulating barriers and spin injection processes. The insulating behavior of LaAlO3 maintained down to 1–2 nm (corresponding to…
Multilayer (ML) thin films, based on indium molybdenum oxide (IMO) and aluminum zinc oxide (AZO), having different stacking were deposited using RF sputtering at room temperature (RT). The total-layer thickness of the MLs ranges between 93 nm and 98 nm. The deposited films were characterized by their structural, elect…
The continued scaling of feature size has brought increasingly significant challenges to conventional optical lithography.[1-3] The rising cost and limited resolution of current lithography technologies have opened up opportunities for alternative patterning approaches. Among the emerging patterning approaches, block…
Functionalized colloidal nanoparticles for SERS serve as a promising multifunctional assay component for blood biomarker detection. Proper design of these nanoprobes through conjugation to spectral tags, protective polymers, and sensing ligands can provide experimental control over the sensitivity, range, reproducibil…
The investigation of the temperature dependence of the dark electrical conductivity of as grown LiTaO3 single crystals and the crystals reduced in vacuum was carried out. The reducing of the LT in vacuum at 830 K causes a removal diffusion of hydrogen and a partial loss of oxygen. It leads to recharging of transition…
We show that the magnetization of a torsional oscillator that, in addition to the magnetic moment also possesses an electrical polarization, can be switched by the electric field that ignites mechanical oscillations at the frequency comparable to the frequency of the ferromagnetic resonance. The 180° switching arises…
Novel nanocomposites of chitosan and p-amino phenol functionalized multi-walled carbon nanotubes (chitosan/multi-walled carbon nanotube– p-amino phenol nanocomposites) were synthesized by solution casting method. The resulting chitosan/multi-walled carbon nanotube– p-amino phenol nanocomposites were characterized with…
A superhydrophobic surface was obtained on a low-density polyethylene (LDPE) substrate using a facile method. The water contact angle and the sliding angle of the superhydrophobic LDPE surface were 155 ± 2° and 4°, respectively. The ice shear stress of the superhydrophobic LDPE surface was 2.08 times smaller than that…
Abstract A series of biodegradable poly( d ‐lactide) ( PDLA ) nanocomposites filled with silica nanoparticles with different surface characteristics were prepared via the solvent casting method. The crystallization behavior of PDLA was investigated at different temperatures. For these hybrid nanocomposites, the effect…
Abstract Aqueous bubbles stabilized solely by micrometer-sized, near-monodisperse, sterically stabilized polystyrene (PS) latex particles can be transformed into polymeric hollow microspheres containing air by exposure to a solvent: the PS particles adsorbed at the air–water interface are plasticized with the solvent…
The majority of the existing experimental, theoretical and modeling works on electromigration (EM) are focused on simple, via-to-via structures, but complex interconnect structures have not been studied well. The lack of correct models for such interconnects may result in either conservative or weak design decisions w…