Quantum-size effects in hafnium-oxide resistive switching

Shibing Long; Xiaojuan Lian; Carlo Cagli; Xavier Cartoixà; Riccardo Rurali; Enrique Miranda; David Jiménez; Luca Perniola; Ming Liu; Jordi Suñé

doi:10.1063/1.4802265

Quantum-size effects in hafnium-oxide resistive switching

Shibing Long, Xiaojuan Lian, Carlo Cagli, Xavier Cartoixà, Riccardo Rurali, Enrique Miranda, David Jiménez, Luca Perniola, Ming Liu, Jordi Suñé

Departament d'Enginyeria Electrònica

Producció científica: Contribució a revista › Article › Recerca › Avaluat per experts

167 Cites (Scopus)

Resum

Discrete changes of conductance of the order of G0 2e 2/h reported during the unipolar reset transitions of Pt/HfO 2/Pt structures are interpreted as the signature of atomic-size variations of the conducting filament (CF) nanostructure. Our results suggest that the reset occurs in two phases: a progressive narrowing of the CF to the limit of a quantum wire (QW) followed by the opening of a spatial gap that exponentially reduces the CF transmission. First principles calculations show that oxygen vacancy paths in HfO2 with single- to few-atom diameters behave as QWs and are capable of carrying current with G0 conductance. © 2013 AIP Publishing LLC.

Idioma original	Anglès
Número d’article	183505
Revista	Applied physics letters
Volum	102
DOIs	https://doi.org/10.1063/1.4802265
Estat de la publicació	Publicada - 6 de maig 2013

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10.1063/1.4802265

https://ddd.uab.cat/record/115508

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title = "Quantum-size effects in hafnium-oxide resistive switching",

abstract = "Discrete changes of conductance of the order of G0 2e 2/h reported during the unipolar reset transitions of Pt/HfO 2/Pt structures are interpreted as the signature of atomic-size variations of the conducting filament (CF) nanostructure. Our results suggest that the reset occurs in two phases: a progressive narrowing of the CF to the limit of a quantum wire (QW) followed by the opening of a spatial gap that exponentially reduces the CF transmission. First principles calculations show that oxygen vacancy paths in HfO2 with single- to few-atom diameters behave as QWs and are capable of carrying current with G0 conductance. {\textcopyright} 2013 AIP Publishing LLC.",

author = "Shibing Long and Xiaojuan Lian and Carlo Cagli and Xavier Cartoix{\`a} and Riccardo Rurali and Enrique Miranda and David Jim{\'e}nez and Luca Perniola and Ming Liu and Jordi Su{\~n}{\'e}",

year = "2013",

month = may,

day = "6",

doi = "10.1063/1.4802265",

language = "English",

volume = "102",

journal = "Applied physics letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

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TY - JOUR

T1 - Quantum-size effects in hafnium-oxide resistive switching

AU - Long, Shibing

AU - Lian, Xiaojuan

AU - Cagli, Carlo

AU - Cartoixà, Xavier

AU - Rurali, Riccardo

AU - Miranda, Enrique

AU - Jiménez, David

AU - Perniola, Luca

AU - Liu, Ming

AU - Suñé, Jordi

PY - 2013/5/6

Y1 - 2013/5/6

N2 - Discrete changes of conductance of the order of G0 2e 2/h reported during the unipolar reset transitions of Pt/HfO 2/Pt structures are interpreted as the signature of atomic-size variations of the conducting filament (CF) nanostructure. Our results suggest that the reset occurs in two phases: a progressive narrowing of the CF to the limit of a quantum wire (QW) followed by the opening of a spatial gap that exponentially reduces the CF transmission. First principles calculations show that oxygen vacancy paths in HfO2 with single- to few-atom diameters behave as QWs and are capable of carrying current with G0 conductance. © 2013 AIP Publishing LLC.

AB - Discrete changes of conductance of the order of G0 2e 2/h reported during the unipolar reset transitions of Pt/HfO 2/Pt structures are interpreted as the signature of atomic-size variations of the conducting filament (CF) nanostructure. Our results suggest that the reset occurs in two phases: a progressive narrowing of the CF to the limit of a quantum wire (QW) followed by the opening of a spatial gap that exponentially reduces the CF transmission. First principles calculations show that oxygen vacancy paths in HfO2 with single- to few-atom diameters behave as QWs and are capable of carrying current with G0 conductance. © 2013 AIP Publishing LLC.

UR - https://www.scopus.com/pages/publications/84877771146

U2 - 10.1063/1.4802265

DO - 10.1063/1.4802265

M3 - Article

SN - 0003-6951

VL - 102

JO - Applied physics letters

JF - Applied physics letters

M1 - 183505

ER -

Quantum-size effects in hafnium-oxide resistive switching

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