Mapping the Phase Diagram of a YBa2Cu3 O7-δ Nanowire Through Electromigration
Artikel i vetenskaplig tidskrift, 2022

We use electromigration (EM) to tune the oxygen content of YBa2Cu3O7-δ (YBCO) nanowires. During EM, the dopant oxygen atoms in the nanowire are moved under the combined effect of electrostatic force and Joule heating. The EM current can be tuned to either deplete or replenish nanowires with oxygen, allowing fine tuning of its hole-doping level. Electrical transport measurements and Kelvin probe microscopy corroborate good homogeneity of the doping level along the electromigrated nanowires. Thus, EM provides an effective method to study transport properties of YBCO in a wide doping range at the nanoscale in one and the same device.

Nanowires

Yttrium barium copper oxides

Oxygen

Ternary alloys

Författare

Edoardo Trabaldo

Chalmers, Mikroteknologi och nanovetenskap, Kvantkomponentfysik

Alexei Kalaboukhov

Chalmers, Mikroteknologi och nanovetenskap, Kvantkomponentfysik

Riccardo Arpaia

Chalmers, Mikroteknologi och nanovetenskap, Kvantkomponentfysik

Eric Wahlberg

Chalmers, Mikroteknologi och nanovetenskap, Kvantkomponentfysik

Floriana Lombardi

Chalmers, Mikroteknologi och nanovetenskap, Kvantkomponentfysik

Thilo Bauch

Chalmers, Mikroteknologi och nanovetenskap, Kvantkomponentfysik

Physical Review Applied

2331-7019 (eISSN)

Vol. 17 2 A21

Nanoscale superconducting devices for a closer look at brain activity (NeuroSQUID)

Knut och Alice Wallenbergs Stiftelse (KAW2014.0102), 2015-01-01 -- 2020-12-31.

Ämneskategorier

Oorganisk kemi

Materialkemi

Den kondenserade materiens fysik

DOI

10.1103/PhysRevApplied.17.024021

Mer information

Senast uppdaterat

2022-02-24