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Nano Research 2009, 2(9): 671-677 https://doi.org/10.1007/s12274-009-9070-3
Research Article | Open Access | Issue | Published: 12 September 2009

Magnetoresistance Oscillations of Ultrathin Pb Bridges

Show Author's Information Jian Wang1,2( ),  Xucun Ma1,  Shuaihua Ji1,  Yun Qi1,  Yingshuang Fu1,  Aizi Jin1,  Li Lu1,  Changzhi Gu1,  X. C. Xie1,3,  Mingliang Tian2,  Jinfeng Jia1,4,  Qikun Xue1,4( )
Institute of Physics Chinese Academy of SciencesBeijing 100190 China
The Center for Nanoscale Science and Department of Physics The Pennsylvania State University University ParkPennsylvania 16802-6300 USA
Department of Physics Oklahoma State UniversityStillwater OK 74078 USA
Department of Physics Tsinghua UniversityBeijing 100084 China
Keywords:
molecular beam epitaxy, superconductivity, magnetoresistance, scanning tunneling microscope, Pb nanobridge, focus ion beam
Cite this article:
Wang J, Ma X, Ji S, et al. Magnetoresistance Oscillations of Ultrathin Pb Bridges. Nano Research, 2009, 2(9): 671-677. https://doi.org/10.1007/s12274-009-9070-3
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Abstract Full text About this article

Pb nanobridges with a thickness of less than 10 nm and a width of several hundred nm have been fabricated from single-crystalline Pb films using low-temperature molecular beam epitaxy and focus ion beam microfabrication techniques. We observed novel magnetoresistance oscillations below the superconducting transition temperature (TC) of the bridges. The oscillations—which were not seen in the crystalline Pb films—may originate from the inhomogeneity of superconductivity induced by the applied magnetic fields on approaching the normal state, or the degradation of film quality by thermal evolution.


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About this article

Magnetoresistance Oscillations of Ultrathin Pb Bridges

Show Author's information Jian Wang1,2( ), Xucun Ma1, Shuaihua Ji1, Yun Qi1, Yingshuang Fu1, Aizi Jin1, Li Lu1, Changzhi Gu1, X. C. Xie1,3, Mingliang Tian2, Jinfeng Jia1,4, Qikun Xue1,4( )
Institute of Physics Chinese Academy of SciencesBeijing 100190 China
The Center for Nanoscale Science and Department of Physics The Pennsylvania State University University ParkPennsylvania 16802-6300 USA
Department of Physics Oklahoma State UniversityStillwater OK 74078 USA
Department of Physics Tsinghua UniversityBeijing 100084 China

Abstract

Pb nanobridges with a thickness of less than 10 nm and a width of several hundred nm have been fabricated from single-crystalline Pb films using low-temperature molecular beam epitaxy and focus ion beam microfabrication techniques. We observed novel magnetoresistance oscillations below the superconducting transition temperature (TC) of the bridges. The oscillations—which were not seen in the crystalline Pb films—may originate from the inhomogeneity of superconductivity induced by the applied magnetic fields on approaching the normal state, or the degradation of film quality by thermal evolution.

Keywords: molecular beam epitaxy, superconductivity, magnetoresistance, scanning tunneling microscope, Pb nanobridge, focus ion beam

References(28)

1

Sharifi, F.; Herzog, A. V.; Dynes, R. C. Crossover from two to one dimension in in situ grown wires of Pb. Phys. Rev. Lett. 1993, 71, 428–431.
DOI Google Scholar
2

Herzog, A. V.; Xiong, P.; Sharifi, F.; Dynes, R. C. Observation of a discontinuous transition from strong to weak localization in 1-D granular metal wires. Phys. Rev. Lett. 1996, 76, 668–671.
DOI Google Scholar
3

Xiong, P.; Herzog, A. V.; Dynes, R. C. Negative magnetoresistance in homogeneous amorphous superconducting Pb wires. Phys. Rev. Lett. 1997, 78, 927–930.
DOI Google Scholar
4

Bezryadin, A.; Lau, C. N.; Tinkham, M. Quantum suppression of superconductivity in ultrathin nanowires. Nature 2000, 404, 971–974.
DOI Google Scholar
5

Camarota, B.; Parage, F.; Delsing, P.; Buisson, O. Experimental evidence of one-dimensional plasma modes in superconducting thin wires. Phys. Rev. Lett. 2001, 86, 480–483.
DOI Google Scholar
6

Vodolazov, D. Y.; Peeters, F. M.; Piraux, L.; Mátéfi-Tempfli, S.; Michotte, S. Current–voltage characteristics of quasi-one-dimensional superconductors: An S-shaped curve in the constant voltage regime. Phys. Rev. Lett. 2003, 91, 157001.
DOI Google Scholar
7

Tian, M. L.; Kumar, N.; Xu, S. Y.; Wang, J. G.; Kurtz, J. S.; Chan, M. H. W. Suppression of superconductivity in zinc nanowires by bulk superconductors. Phys. Rev. Lett. 2005, 95, 076802.
DOI Google Scholar
8

Rogachev, A.; Bollinger, A. T.; Bezryadin, A. Influence of high magnetic fields on the superconducting transition of one-dimensional Nb and MoGe nanowires. Phys. Rev. Lett. 2005, 94, 017004.
DOI Google Scholar
9

Zgirski, M; Riikonen, K. -P.; Touboltsev, V.; Arutyunov, K. Size dependent breakdown of superconductivity in ultranarrow nanowires. Nano Lett. 2005, 5, 1029–1033.
DOI Google Scholar
10

Altomare, F; Chang, A. M.; Melloch, M. R.; Hong, Y. G.; Tu, C. W. Evidence for macroscopic quantum tunneling of phase slips in long one-dimensional superconducting Al wires. Phys. Rev. Lett. 2006, 97, 017001.
DOI Google Scholar
11

Guo, Y.; Zhang, Y. F.; Bao, X. Y.; Han, T. Z.; Tang, Z.; Zhang, L. X.; Zhu, W. G.; Wang, E. G.; Niu, Q.; Qiu, Z. Q.; Jia, J. F.; Zhao, Z. X.; Xue, Q. K. Superconductivity modulated by quantum size effects. Science 2004, 306, 1915–1917.
DOI Google Scholar
12

Chiang, T. C. Superconductivity in thin films. Science 2004, 306, 1900–1901.
DOI Google Scholar
13

Zhang, Y. F.; Jia, J. F.; Han, T. Z.; Tang, Z.; Shen, Q. T.; Guo, Y.; Qiu, Z. Q.; Xue, Q. K. Band structure and oscillatory electron-phonon coupling of Pb thin films determined by atomic-layer-resolved quantum-well states. Phys. Rev. Lett. 2005, 95, 096802.
DOI Google Scholar
14

Bao, X. Y.; Zhang, Y. F.; Wang, Y. P.; Jia, J. F.; Xue, Q. K.; Xie, X. C.; Zhao, Z. X. Quantum size effects on the perpendicular upper critical field in ultrathin lead films. Phys. Rev. Lett. 2005, 95, 247005.
DOI Google Scholar
15

Eom, D.; Qin, S.; Chou, M. -Y.; Shih, C. K. Persistent superconductivity in ultrathin Pb films: A scanning tunneling spectroscopy study. Phys. Rev. Lett. 2006, 96, 027005.
DOI Google Scholar
16

Ozer, M. M.; Thompson, J. R.; Weitering, H. H. Hard superconductivity of a soft metal in the quantum regime. Nat. Phys. 2006, 2, 173–176.
DOI Google Scholar
17

Wang, J.; Ma, X. C.; Qi, Y.; Fu, Y. S.; Ji, S. H.; Lu, L.; Jia, J. F.; Xue, Q. K. Negative magnetoresistance in fractal Pb thin films on Si(111). Appl. Phys. Lett. 2007, 90, 113109.
DOI Google Scholar
18

Wang, J.; Ma, X. C.; Qi, Y.; Fu, Y. S.; Ji, S. H.; Lu, L.; Xie, X. C.; Jia, J. F.; Chen, X.; Xue, Q. K. Unusual magnetoresistance effect in the heterojunction structure of an ultrathin single-crystal Pb film on silicon substrate. Nanotechnology 2008, 19, 475708.
DOI Google Scholar
19

Rogachev, A.; Bezryadin, A. Superconducting properties of polycrystalline Nb nanowires templated by carbon nanotubes. Appl. Phys. Lett. 2003, 83, 512–514.
DOI Google Scholar
20

Tian, M. L.; Wang, J. G.; Kurtz, J. S.; Liu, Y.; Chan, M. H. W. Dissipation in quasi-one-dimensional superconducting single-crystal Sn nanowires. Phys. Rev. B 2005, 71, 104521.
DOI Google Scholar
21

Shanenko, A. A.; Croitoru, M. D.; Zgirski, M.; Peeters, F. M.; Arutyunov, K. Size-dependent enhancement of superconductivity in Al and Sn nanowires: Shape-resonance effect. Phys. Rev. B 2006, 74, 052502.
DOI Google Scholar
22

Wang, J.; Ma, X. C.; Lu, L.; Jin, A. Z.; Gu, C. Z.; Xie, X. C.; Jia, J. F.; Chen, X.; Xue, Q. K. Anomalous magnetoresistance oscillations and enhanced superconductivity in single-crystal Pb nanobelts. Appl. Phys. Lett. 2008, 92, 233119.
DOI Google Scholar
23

Herzog, A. V.; Xiong, P.; Dynes, R. C. Magnetoresistance oscillations in granular Sn wires near the superconductor–insulator transition. Phys. Rev. B 1998, 58, 14199–14202.
DOI Google Scholar
24

Johansson, A.; Sambandamurthy, G.; Shahar, D.; Jacobson, N.; Tenne, R. Nanowires acting as a superconducting quantum interference device. Phys. Rev. Lett. 2005, 95, 116805.
DOI Google Scholar
25

Patel, U.; Avci, S.; Xiao, Z. L.; Hua, J.; Yu, S. H.; Ito, Y.; Divan, R.; Ocola, L. E.; Zheng, C.; Claus, H.; Hiller, J.; Welp, U.; Miller, D. J.; Kwok, W. K. Synthesis and superconducting properties of niobium nanowires and nanoribbons. Appl. Phys. Lett. 2007, 91, 162508.
DOI Google Scholar
26

Van der Zant, H. S. J., Webster, M. N., Romijn, J.; Mooij, J. E. Vortices in two-dimensional superconducting weakly coupled wire networks. Phys. Rev. B 1994, 50, 340–350.
DOI Google Scholar
27

Hopkins, D. S.; Pekker, D.; Goldbart, P. M., Bezryadin, A. Quantum interference device made by DNA templating of superconducting nanowires. Science 2005, 308, 1762–1765.
DOI Google Scholar
28

Pekker, D.; Bezryadin, A.; Hopkins, D. S.; Goldbart, P. M. Operation of a superconducting nanowire quantum interference device with mesoscopic leads. Phys. Rev. B 2005, 72, 104517.
DOI Google Scholar
Publication history
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Acknowledgements
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Publication history

Received: 11 May 2009
Revised: 18 June 2009
Accepted: 30 June 2009
Published: 12 September 2009
Issue date: September 2009

Copyright

© Tsinghua University Press and Springer-Verlag 2009

Acknowledgements

Acknowledgements

We gratefully acknowledge technical support by Shao-Kui Su. We thank Dr. Lili Wang and Dr. Peng Jiang for their help in sample preparation. This work was financially supported by the National Science Foundation and the Ministry of Science and Technology of China and the Penn. State MRSEC under NSF grant DMR-0820404.

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