Study of in-plane electrical transport anisotropy of α-axis oriented YBa2Cu3O7-δ nanodevices

被引：12

作者：

Baghdadi, Reza ^{[1
]}

Arpaia, Riccardo ^{[1
]}

Stepantsov, Evgeny ^{[2
]}

Arzeo, Marco ^{[1
]}

Golubev, Dmitri ^{[3
]}

Montemurro, Domenico ^{[1
]}

Andersson, Eric ^{[1
]}

Bauch, Thilo ^{[1
]}

Lombardi, Floriana ^{[1
]}

机构：

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

[2] Russian Acad Sci, Shubnikov Inst Crystallog, Leninskii Pr 59, Moscow 119333, Russia

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

来源：

PHYSICAL REVIEW B | 2017年 / 95卷 / 18期

基金：

瑞典研究理事会;

关键词：

HIGH-TEMPERATURE SUPERCONDUCTORS; DENSITY-WAVE ORDER; THIN-FILMS; SINGLE-CRYSTAL; YBA2CU3O7-X-PRBA2CU3O7-Y HETEROSTRUCTURES; JOSEPHSON CURRENTS; GROWTH; PLANE; RESISTIVITY; COMPETITION;

D O I：

10.1103/PhysRevB.95.184505

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the present work, we report the growth of fully untwinned high-quality a-axis-oriented YBa2Cu3O7-delta films on (100) SrLaGaO4 substrates by using PrBa2Cu3O7-delta as a buffer layer. We also fabricated nanowires at different angles gamma with respect to the [0,1,0] direction of the substrate and studied the in-plane anisotropy of the critical current density, which we explained by considering the anisotropy in the coherence length xi and London penetration depth lambda L. Finally, half-integer Shapiro-like steps measured in slightly underdoped c-axis oriented (gamma = 90 degrees) nanowires point towards a different transport regime, which could shed light on intriguing issues of high-critical-temperature superconductors.

引用

页数：7

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