Quantum Hall effect (QHE) is the basis of modern resistance metrology. In quantum Hall array resistance standards (QHARS), several individual QHE elements, each one with the same QHE resistance (typically half of the von Klitzing constant), are arranged in networks that realize resistance values close to decadic values (such as 1 kohm or 100 kohm), of direct interest for dissemination. The same decadic value can be approximated with different grades of precision, and even for the same approximation several networks of QHE elements can be conceived. This paper investigates the design of QHARS networks by giving methods to find a proper approximation of the resistance of interest, and to design the corresponding network with a small number of elements; results for several decadic case examples are given. The realization of these networks with multiterminal QHE elements requires a new multiple bridge connection, here described.

On the synthesis of quantum Hall array resistance standards / Ortolano, Massimo; Abrate, Marco; Luca, Callegaro. - In: METROLOGIA. - ISSN 0026-1394. - STAMPA. - 52:(2015), pp. 31-39. [10.1088/0026-1394/52/1/31]

On the synthesis of quantum Hall array resistance standards

ORTOLANO, Massimo;ABRATE, MARCO;
2015

Abstract

Quantum Hall effect (QHE) is the basis of modern resistance metrology. In quantum Hall array resistance standards (QHARS), several individual QHE elements, each one with the same QHE resistance (typically half of the von Klitzing constant), are arranged in networks that realize resistance values close to decadic values (such as 1 kohm or 100 kohm), of direct interest for dissemination. The same decadic value can be approximated with different grades of precision, and even for the same approximation several networks of QHE elements can be conceived. This paper investigates the design of QHARS networks by giving methods to find a proper approximation of the resistance of interest, and to design the corresponding network with a small number of elements; results for several decadic case examples are given. The realization of these networks with multiterminal QHE elements requires a new multiple bridge connection, here described.
File in questo prodotto:
File Dimensione Formato  
Ortolano2015_Metrologia_52_31.pdf

non disponibili

Tipologia: 2a Post-print versione editoriale / Version of Record
Licenza: Non Pubblico - Accesso privato/ristretto
Dimensione 487.44 kB
Formato Adobe PDF
487.44 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
Ortolano-OnTheSynthesis_AAM.pdf

accesso aperto

Tipologia: 2. Post-print / Author's Accepted Manuscript
Licenza: Creative commons
Dimensione 871.25 kB
Formato Adobe PDF
871.25 kB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2584433
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo