Nuclear magnetic resonance (NMR) spectroscopy is a technique that detects the chemical environment of atomic nuclei by the absorption of radio-frequency electromagnetic radiation when in the ...
由于镍基超导具有与铜酸盐类似的d电子结构,表明镍基超导体具有潜在的高温超导性,因而受到关注。尤其,近期的研究成果进一步支持了这一假设。中山大学王猛及其合作者发现La 3 Ni 2 O 7 单晶在14 GPa及以上的压力下,显示出TC≈80 K的超导转变。此后,诸多实验也相继报道了它在高压下的超导性能。然而,其超导机制尚不清楚,也存在一些争议。
The U.S. hydrogen economy will likely rely on natural gas and carbon capture technologies rather than green energy in Donald Trump’s second term, according to BloombergNEF. Billions of dollars ...
Department of Chemistry, University of Waterloo, 200 University Avenue W., Waterloo, Ontario N2L 3G1, Canada Waterloo Institute for Nanotechnology, University of Waterloo, 200 University Avenue W., ...