Though both options do mean you’ll be switching over to the macOS ecosystem if you’re a Windows OS user. There’s also the MacBook Air M1, which will set you back a couple of hundred quid/bucks less than the Pro for pretty much the same specs. The configuration we tested here, which boasts an i7 processor, 16GB memory, and 512GB storage while keeping the same integrated graphics, is a whopping $1,619/£1,549.įor around the same price, if only slightly higher, its direct competitor, the MacBook Pro 13-inch M1 will give you a much more robust chip touting an 8-core CPU and 8-core GPU alongside the same amount of memory and storage. It keeps relatively the same weight while giving you more power and, therefore, a better performance that’s more suitable for creative workloads. From these results, it is found that the intensity ratio of the high- to low-binding-energy peak of La 3d XPS among La compounds corresponds to the charge-transfer effect.The higher you go up the configuration ladder, however, the more this portable Ultrabook is worth your money. La 3d XPS of La halides and oxides was reported, and the intensity ratios of the high- to low-binding-energy peaks of La 3d XPS for LaCl 3, LaBr 3, LaF 3, and La 2O 3 are 1.4, 1.4, 0.3, and 0.8 in case of both 3d 5/2 and 3d 3/2 XPS, which means that the core-hole screening ordering is LaBr 3=LaCl 3>La 2O 3>LaF 3. From this result, it is found that charge-transfer effect ordering is 3-= 3-> 9-> 3. It is found from these calculations that, due to the charge-transfer effect, the numbers of unpaired 4f electrons in the 3d -1 core-hole states of 3-, 3-, 3-, and 9- increase by 1.10, 1.15, 0.37, and 0.58, respectively, from the ground state.
The 3d -1 core-hole states can be regarded as the final states of La 3d x-ray photoemission spectroscopy (XPS), and the creation of 3d -1 core-hole states induces the charge-transfer effect.
The electronic structures of these clusters are calculated for the ground state and the 3d -1 core-hole states. The model clusters we use are 9-, 3-, 3-, and 3-, as model clusters of La 2O 3, LaF 3, LaCl 3, and LaBr 3, respectively. We calculate the electronic structures of La halides and oxides from a first-principles calculation by the spin-unrestricted DV-Xα molecular-orbital method of model clusters.
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