X-ray photoelectron spectroscopy (XPS) is a powerful technique widely used for the surface analysis of materials. At low energy resolution it provides qualitative and quantitative information on the ...

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具有非平庸晶格结构的二维材料中存在丰富的物理特性，这些特性由于受到对称性的保护而非常稳定。自以石墨烯和硅稀为代表的蜂窝晶格在布里渊区的K点存在线性色散狄拉克锥特性被发现以来，众多类石墨烯蜂窝晶格的二维晶线图晶格体系由于极有可能是实现拓扑和平带的良好平 ...

XPS实验表明在rGO膜中Ca和Cl元素的原子数比例为1:1； (d) 基于实验数据和第一性原理计算得出的稳定二维CaCl晶体结构；(e) 对rGO和GO膜的电阻测量证实了 ...

Right now you can buy a Dell XPS 14 laptop for $1,450 instead of $2,000, which is a huge discount for well specced laptop for any content creators or productive users. The $550 discount is ...

The Dell XPS 13 is generally a pretty good series of laptops, usually scoring a four out of five stars rating, though 2022's ...

We’re in a laptop CPU war, and Dell’s XPS 13 is a highly contested battleground. At IFA 2024, Intel has launched its new Core Ultra processors, now in their Series 2 (or second generation ...

Purchases made through our links may earn us a commission. The 2024 Dell XPS 13 9345 (available at Dell) is one of about a ...

If you're wondering what the best Dell XPS deals are or where to find the cheapest prices you've come to the right place. No matter what size or configuration of this incredible Ultrabook you're ...

The 2024 model of the XPS 14 (codename 9440) tries to be the porridge in the middle: more powerful than the XPS 13, but smaller than the XPS 16. It works, especially with the gorgeous OLED screen ...

For example, Dell’s XPS 13 (9345), that I’ve been spending some extended quality time with lately, is a rare breed of premium machine. In fact, Dell has never strayed from Intel Core ...