Phonon-engineered Nb film as a Mott-insulating tunnel-junction network

Herein, phonon engineering is applied to a metal. Suppressed phonon branches are expected to enhance electron–phonon interactions in metals. Independent resistance and magnetization measurements have confirmed the Mott transition, which has never been observed in pure, undoped metals. By repeatedly...

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Bibliographic Details
Main Author: Nobuyuki Zen
Format: Article
Language:English
Published: AIP Publishing LLC 2019-09-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.5126616