Metal - Wikipedia
A metal (from Ancient Greek μέταλλον (métallon) 'mine, quarry, metal') is a material that, when polished or fractured, shows a lustrous appearance, and conducts electricity and heat relatively well.
Post-transition metal - Wikipedia
Practically, the group 11 metals (copper, silver and gold) are ordinarily regarded as transition metals (or sometimes as coinage metals, or noble metals) whereas the group 12 metals (zinc, cadmium, and mercury) may or may not be treated as B-subgroup metals depending on if the transition metals are taken to end at group 11 or group 12.
List of All Elements Considered to Be Metals - ThoughtCo
2024年7月23日 · Most elements are metals. This group includes alkali metals, alkaline earth metals, transition metals, basic metals, lanthanides (rare earth elements), and actinides. Although separate on the periodic table, lanthanides and actinides are …
Interesting Metal Facts and Properties - ThoughtCo
2019年12月6日 · Metals form positively charged ions called cations through loss of electrons. They react with most other elements, but especially nonmetals, such as oxygen and nitrogen. …
Quantum Weirdness in New 'Strange Metals' Bends the Rules of …
2024年3月19日 · Many materials seem to be perfectly ordinary metals until they are near a particular quantum critical point, in terms of temperature, pressure, and other parameters.
Anomalous electrons in a metallic kagome ferromagnet - Nature
2024年3月6日 · Ordinary metals contain electron liquids within well-defined ‘Fermi’ surfaces at which the electrons behave as if they were non-interacting.
Metal Elements From the Period Table Facts - ThoughtCo
2018年6月10日 · 75% of all the elements on the periodic table are metals. The metals are subdivided into separate groups, such as basic metals, transition metals, alkali metals, alkaline …
Topology of the Fermi sea: ordinary metals as topological materials
2022年10月15日 · It has long been known that the quantum ground state of a metal is characterized by an abstract manifold in momentum space called the Fermi sea. Fermi sea can be distinguished topologically in much the same way that a ball can be distinguished from a donut by counting the number of holes.
Topological semimetals - Nature Materials
2016年10月25日 · Whereas ordinary metals owe most of their unique observable character to the existence of a Fermi surface, and insulators to its lack — together with the presence of a finite gap between the ...
Topology of the Fermi sea: Ordinary metals as topological materials
The associated topological invariant, i.e. the Euler characteristic (χ_F), serves to classify metals. Here I will survey two recent proposals relating χ_F to experimental observables, namely: (i) equal-time density/number correlations [1], and (ii) Andreev state transport along a planar Josephson junction [2].