The new giant magnetoresistive material, NbP, is produced by the German Institute of Machining Solid Chemical physics and the Helmholtz Dresden Rosendorf Research Center (HZDR) and the University of Radboud, the Netherlands. The scientists discovered together. In the study of this material, researchers for the first time observed a nearly 10,000-fold increase in electrical resistance on a single material. The material can be used for the production of electronic components and has great application potential in the field of information technology.
Studies have found that when a strong magnetic field is applied to yttrium phosphide, its resistance increases dramatically. The reason why the cesium phosphide resistance has such a sharp change in the magnetic field is that the so-called Lorentz force deflects the magnetic field of the charge carrier. As the magnetic field increases, the proportion of electrons flowing in the wrong direction increases, resulting in increased resistance. Ultra-fast electrons can cause giant magnetoresistance, and the faster electrons move through the material, the greater the Lorentz force and magnetic field influence. In the transition metal niobium (Nb) and phosphorus (P) composite materials, there is an ultra-fast charge carrier, the so-called relativistic electron, whose moving speed is one thousandth of the speed of light, 300 kilometers per second. Therefore, yttrium phosphide has a pronounced giant magnetoresistance effect.
Researchers also found out why electronics are so fast and flexible. In phosphonium phosphide, this particular property is responsible for a specific electronic state: there are electrons in the so-called Weyl metal, and they seem to be massless and can move very quickly. Researchers believe that the giant magnetoresistance effect of yttrium phosphide can be further improved through smart material design. Experts from the Max Planck Institute for the Study of Solid Chemical Physics and the Helmholtz Dresden Rosendorf Research Center hope that the future cooperation will continue to develop Weyl metal.
Properties:
Oxalic ACID is white crystal. Its melting point is 101-102 °C and sublimes at 157 °C.It is soluble in water,alcohol and ethyl ether. It is insoluble in benzene and chloroform. It is toxic. Pharmaceutical industry: for ring elements. Oxytetracycline. Borneol etc.;
Application:
1.Purifying agent in pharmaceutical industry, special in antibiotic medication, such as oxytetracycline,Chloramphenicol etc.
2.Precipitating agent in Rare-earth mineral processing.
3.Bleaching agent in the textile activities, wood pulp bleaching.
4.Rust-remover for metal treatment.
5.Grinding agent, such as marble polishing.
6.Waste Water Treatment, removing calcium from water.
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