Giant Microwave Absorption in Metallic Grains: Relaxation Mechanism

F. Zhou , B. Spivak , N. Taniguchi , B. L. Altshuler (Univ. of Washington , MIT , NECI)

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classification ❄️ cond-mat

keywords microwaveabsorptiongiantgrainsmechanismmetallicrelaxationconductivity

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We show that the low frequency microwave absorption of an ensemble of small metallic grains at low temperatures is dominated by a mesoscopic relaxation mechanism. Giant positive magnetoresistance and very strong temperature dependence of the microwave conductivity is predicted.

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Giant Microwave Absorption in Metallic Grains: Relaxation Mechanism

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