Peierls, RE (English spelling) PeierlsRE

Japanese: Peierls,R.E.(英語表記)PeierlsRE
Peierls, RE (English spelling) PeierlsRE

…Solids of the arsenic group elements (arsenic, antimony, and bismuth) are expected to be metals because these atoms have a valence of five electrons, but they become semimetals because of the slight, crystal distortion unique to this system. To explain this, the British Rudolf Ernst Peierls (1907-95) proposed a type of structural phase transition that occurs in metallic materials called the Peierls transition. When the Fermi surface has a special shape and the band gap caused by the addition of a weak periodic potential tends to eliminate the Fermi surface, the decrease in the kinetic energy of the electron system (i.e., band energy) overcomes the loss of potential energy due to the distortion of the crystal, resulting in spontaneous crystal distortion. …

*Some of the terminology that mentions "Peierls, RE" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…ヒ素族元素(ヒ素,アンチモン,ビスマス)の固体は,これらの原子が5価の電子価をもつため金属になることが予想されるが,わずかであるが,この系独特の結晶のひずみのため半金属となる。これを説明するためにイギリスのパイエルスRudolf Ernst Peierls(1907‐95)が提唱した,金属的な物質で起こる構造相転移の一種をパイエルス転移という。フェルミ面の形状が特殊で,弱い周期ポテンシャルが加わったことによるバンドギャップがフェルミ面を消滅させやすい場合,電子系の運動エネルギー(すなわちバンドエネルギー)の減少は,結晶がひずむことによるポテンシャルエネルギーの損失に打ち勝ち,結果として自発的な結晶のひずみが生ずる。…

※「Peierls,R.E.」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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