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High-T$$_{c}$$ superconductivity in the LaFeAsO$$_{1-x}$$F$$_{x}$$ system based on inelastic neutron scattering measurements

中性子非弾性散乱実験に基づいたLaFeAsO$$_{1-x}$$F$$_{x}$$系の高温超伝導

社本 真一  

Shamoto, Shinichi

LaFeAsO$$_{1-x}$$F$$_{x}$$系の動的磁化率$$chi$$"($$q$$,$$omega$$)を遍歴描像で議論する。超伝導転移温度に対するスピンレゾナンスエネルギーを他の鉄系超伝導体と、またYNi$$_{2}$$B$$_{2}$$Cのギャップモードと比較した。レゾナンスのスピン数はおおよそ超伝導ギャップエネルギー2$$Delta$$以下の超流動キャリア数に対応した。

Dynamical spin susceptibility, $$chi$$"($$q$$,$$omega$$) of LaFeAsO$$_{1-x}$$F$$_{x}$$ system is discussed based on the itinerant picture. The spin resonant energy relative to the superconducting transition temperature is compared with those of other iron-based superconductors, and also with that of the gap mode in YNi$$_{2}$$B$$_{2}$$C. The resonant spin number roughly corresponds to the superfluid carrier number below superconducting gap energy 2$$Delta$$.

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パーセンタイル:14.95

分野:Physics, Condensed Matter

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