Hot spot formation in electron-doped PCCO nanobridges

被引：24

作者：

Charpentier, S. ^{[1
]}

Arpaia, R. ^{[1
]}

Gaudet, J. ^{[2
]}

Matte, D. ^{[2
]}

Baghdadi, R. ^{[1
]}

Lofwander, T. ^{[3
]}

Golubev, D. ^{[4
,5
]}

Fournier, P. ^{[2
]}

Bauch, T. ^{[1
]}

Lombardi, F. ^{[1
]}

机构：

[1] Chalmers, Dept Microtechnol & Nanosci, Quantum Device Phys Lab, S-41296 Gothenburg, Sweden

[2] Univ Sherbrooke, Canadian Inst Adv Res, Dept Phys, Sherbrooke, PQ J1K 2R1, Canada

[3] Chalmers, Dept Microtechnol & Nanosci, Appl Quantum Phys Lab, S-41296 Gothenburg, Sweden

[4] Aalto Univ, Sch Sci, Low Temp Lab OVLL, POB 13500, FI-00076 Aalto, Finland

[5] Karlsruhe Inst Technol, Inst Nanotechnol, D-76021 Karlsruhe, Germany

来源：

PHYSICAL REVIEW B | 2016年 / 94卷 / 06期

基金：

加拿大创新基金会; 加拿大自然科学与工程研究理事会; 瑞典研究理事会;

关键词：

THEORETICAL DEPAIRING CURRENT; CUPRATE SUPERCONDUCTORS; PENETRATION DEPTH; NANOWIRES; FILMS; MAGNETORESISTANCE; TRANSITION; JUNCTIONS; LONG;

D O I：

10.1103/PhysRevB.94.060503

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have investigated the transport properties of optimally doped Pr2-xCexCuO4-delta (PCCO) nanobridges with width down to 100 nm. The critical current density of the nanobridges approaches the Ginzburg-Landau theoretical limit, which demonstrates nanostructures with properties close to the as-grown films. The current voltage characteristics are hysteretic with a sharp voltage switch, of the order of a few millivolts, that we interpret with the occurrence of a hot spot formation. The values of the retrapping current and the voltage switch obtained by modeling the heat transport in the nanobridges are very close to the experimental ones. This feature, together with the extremely short recombination times, make PCCO nanostructures attractive candidates for ultrafast single photon detectors.

引用

页数：5

共 53 条

[1] Spatially modulated 'Mottness' in La2-xBaxCuO4 [J].

Abbamonte, P ;

Rusydi, A ;

Smadici, S ;

Gu, GD ;

Sawatzky, GA ;

Feng, DL .

NATURE PHYSICS, 2005, 1 (03) :155-158

[2] Progress and perspectives on electron-doped cuprates [J].

Armitage, N. P. ;

Fournier, P. ;

Greene, R. L. .

REVIEWS OF MODERN PHYSICS, 2010, 82 (03) :2421-2487

[3] High-temperature superconducting nanowires for photon detection [J].

Arpaia, R. ;

Ejrnaes, M. ;

Parlato, L. ;

Tafuri, F. ;

Cristiano, R. ;

Golubev, D. ;

Sobolewski, Roman ;

Bauch, T. ;

Lombardi, F. ;

Pepe, G. P. .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2015, 509 :16-21

[4] YBa2Cu3O7-δ nanorings to probe fluxoid quantization in High Critical Temperature Superconductors [J].

Arpaia, R. ;

Charpentier, S. ;

Toskovic, R. ;

Bauch, T. ;

Lombardi, F. .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2014, 506 :184-187

[5] Resistive state triggered by vortex entry in YBa2Cu3O7-δ nanostructures [J].

Arpaia, R. ;

Golubev, D. ;

Baghdadi, R. ;

Arzeo, M. ;

Kunakova, G. ;

Charpentier, S. ;

Nawaz, S. ;

Lombardi, F. ;

Bauch, T. .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2014, 506 :165-168

[6] Ultra low noise YBa2Cu3O7-δ nano superconducting quantum interference devices implementing nanowires [J].

Arpaia, R. ;

Arzeo, M. ;

Nawaz, S. ;

Charpentier, S. ;

Lombardi, F. ;

Bauch, T. .

APPLIED PHYSICS LETTERS, 2014, 104 (07)

[7] Improved Nanopatterning for YBCO Nanowires Approaching the Depairing Current [J].

Arpaia, Riccardo ;

Nawaz, Shahid ;

Lombardi, Floriana ;

Bauch, Thilo .

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2013, 23 (03)

[8] TRANSITION FROM METALLIC TO TUNNELING REGIMES IN SUPERCONDUCTING MICRO-CONSTRICTIONS - EXCESS CURRENT, CHARGE IMBALANCE, AND SUPER-CURRENT CONVERSION [J].

BLONDER, GE ;

TINKHAM, M ;

KLAPWIJK, TM .

PHYSICAL REVIEW B, 1982, 25 (07) :4515-4532

[9] Electronic transport in underdoped YBa2Cu3O7-δ nanowires:: Evidence for fluctuating domain structures -: art. no. 087002 [J].

Bonetti, JA ;

Caplan, DS ;

Van Harlingen, DJ ;

Weissman, MB .

PHYSICAL REVIEW LETTERS, 2004, 93 (08) :087002-1

[10]

Chang J, 2012, NAT PHYS, V8, P871, DOI [10.1038/NPHYS2456, 10.1038/nphys2456]

← 1 2 3 4 5 6 →