China’s terbium oxide, praseodymium oxide and neodymium oxide prices keep rising on April 21, 2022. Under the influence of a slight increase in the enthusiasm of downstream users and the decline in the long-term selling price of rare earth raw materials in the early stage, suppliers have generally increased their awareness of price-preserving profitability, but the actual transaction is still lower than expected.

The researchers observed on ultrathin sheets of tungsten diselenide and tungsten disulfide a description of photo-induced magnetism, excited by laser light, in a bonded pair of an exciton (an electron) and its associated positive charge, also known as a hole. This activity induces a long-range exchange interaction between other holes trapped within the molar superlattice, orienting their spins in the same direction.

China’s molybdenum rod and molybdenum oxide prices remained unchanged on April 21, 2022. Under the circumstance that the spot stock of molybdenum raw materials is relative tight and the market demand is weak, there is no obvious change in the mentality of traders, that is, the suppliers make rational shipments and the purchasers consume rationally.

Apple Inc. announced that it has taken additional steps in using recycled materials to make its products, expanding its reuse of gold, tungsten, cobalt, and other elements. The company said nearly 20 percent of all materials used in its products were recycled last year, the highest level to date.