Charge transport in a polar metal

The fate of electric dipoles inside a Fermi sea is an old issue, yet poorly explored. Sr 1 − x Ca x TiO 3 hosts a robust but dilute ferroelectricity in a narrow ( 0.0018 < x < 0.02 ) window of substitution. This insulator becomes metallic by removal of a tiny fraction of its oxygen atoms. Here...

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Veröffentlicht in:	npj quantum materials 2019-12, Vol.4 (1), Article 61
Hauptverfasser:	Wang, Jialu, Yang, Liangwei, Rischau, Carl Willem, Xu, Zhuokai, Ren, Zhi, Lorenz, Thomas, Hemberger, Joachim, Lin, Xiao, Behnia, Kamran
Format:	Artikel
Sprache:	eng
Schlagworte:	639/766/119/1003 639/766/119/2795 639/766/119/995 Antiferroelectricity Carrier density Charge transport Condensed Matter Physics Dilution Dipole interactions Electric dipoles Electrical resistivity Ferroelectric materials Ferroelectricity Kondo effect Low temperature Oxygen atoms Phase transitions Physics Physics and Astronomy Quantum Physics Strontium Structural Materials Substitutes Surfaces and Interfaces Temperature dependence Thin Films
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