Vortex ratchet effects in a superconducting asymmetric ring-shaped device

被引：15

作者：

Ji, Jiangdong ^{[1
,2
]}

Yuan, Jie ^{[2
]}

He, Ge ^{[2
]}

Jin, Biaobing ^{[1
]}

Zhu, Beiyi ^{[2
]}

Kong, Xiangdong ^{[3
]}

Jia, Xiaoqing ^{[1
]}

Kang, Lin ^{[1
]}

Jin, Kui ^{[2
]}

Wu, Peiheng ^{[1
]}

机构：

[1] Nanjing Univ, Sch Elect Sci & Engn, RISE, Nanjing 210093, Jiangsu, Peoples R China

[2] Chinese Acad Sci, Inst Phys, Natl Lab Superconduct, Beijing 100190, Peoples R China

[3] Chinese Acad Sci, Inst Elect Engn, Electron Beam Lithog Technol Res Grp, Beijing 100190, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2016年 / 109卷 / 24期

关键词：

MAGNETIC-FLUX QUANTA; SINGLE-PHOTON; MOTION;

D O I：

10.1063/1.4971835

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We investigate the vortex ratchet effects in a superconducting asymmetric ring-shaped NbN device. Through transport measurements, we find that the rectified dc voltages are significantly enhanced, and we observe time-dependent asymmetric voltage waveforms over a single cycle. Our vortex ratchet device operates over a wide range of temperatures, critical currents, and magnetic fields. We demonstrate that in this asymmetric structure giant ratchet effects are mainly caused by the collective behavior of vortices, which differs clearly from one-particle vortex effects studied in conventional vortex ratchet systems. Published by AIP Publishing.

引用

页数：4

共 30 条

[1] Current crowding effects in superconducting corner-shaped Al microstrips [J].

Adami, O. -A. ;

Cerbu, D. ;

Cabosart, D. ;

Motta, M. ;

Cuppens, J. ;

Ortiz, W. A. ;

Moshchalkov, V. V. ;

Hackens, B. ;

Delamare, R. ;

Van de Vondel, J. ;

Silhanek, A. V. .

APPLIED PHYSICS LETTERS, 2013, 102 (05)

[2] Reduced dark counts in optimized geometries for superconducting nanowire single photon detectors [J].

Akhlaghi, Mohsen K. ;

Atikian, Haig ;

Eftekharian, Amin ;

Loncar, Marko ;

Majedi, A. Hamed .

OPTICS EXPRESS, 2012, 20 (21) :23610-23616

[3]

[Anonymous], 2006, PHYS REV B

[4] Spatially dependent sensitivity of superconducting meanders as single-photon detectors [J].

Berdiyorov, G. R. ;

Milosevic, M. V. ;

Peeters, F. M. .

APPLIED PHYSICS LETTERS, 2012, 100 (26)

[5] Superconducting properties and Hall effect of epitaxial NbN thin films [J].

Chockalingam, S. P. ;

Chand, Madhavi ;

Jesudasan, John ;

Tripathi, Vikram ;

Raychaudhuri, Pratap .

PHYSICAL REVIEW B, 2008, 77 (21)

[6]

Eom BH, 2012, NAT PHYS, V8, P623, DOI [10.1038/NPHYS2356, 10.1038/nphys2356]

[7] Controlling flux flow dissipation by changing flux pinning in superconducting films [J].

Grimaldi, G. ;

Leo, A. ;

Nigro, A. ;

Silhanek, A. V. ;

Verellen, N. ;

Moshchalkov, V. V. ;

Milosevic, M. V. ;

Casaburi, A. ;

Cristiano, R. ;

Pace, S. .

APPLIED PHYSICS LETTERS, 2012, 100 (20)

[8] Artificial Brownian motors: Controlling transport on the nanoscale [J].

Haenggi, Peter ;

Marchesoni, Fabio .

REVIEWS OF MODERN PHYSICS, 2009, 81 (01) :387-442

[9] Critical-current reduction in thin superconducting wires due to current crowding [J].

Hortensius, H. L. ;

Driessen, E. F. C. ;

Klapwijk, T. M. ;

Berggren, K. K. ;

Clem, J. R. .

APPLIED PHYSICS LETTERS, 2012, 100 (18)

[10] High-frequency vortex ratchet effect in a superconducting film with a nanoengineered array of asymmetric pinning sites [J].

Jin, B. B. ;

Zhu, B. Y. ;

Woerdenweber, R. ;

de Souza Silva, C. C. ;

Wu, P. H. ;

Moshchalkov, V. V. .

PHYSICAL REVIEW B, 2010, 81 (17)

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