XIAOSONG WU

Education

Research Experience

Research Interests

My research interests have been in the quantum transport of electrons in low dimensional systems, where quantum effects dominate the behaviors of electrons and in some cases, electron spins play an important role. These effects can lead to novel electronic properties. The current research mainly focuses on a recently discovered 2-dimenional material, graphene. Owing to its unique electronic structure, graphene exhibits exceptional properties that make it a promising material for the next generation electronics. My efforts concentrate on growing large size and high quality epitaxial graphene on SiC and studying its transport properties. The goal aims at making all-graphene meso- and nano-structures and exploring their potential application in electronic devices.

Selected Publications

1. X. S. Wu, Yike Hu, Ming Ruan, N. K. Madiomanana, C. Berger and W. A. de Heer 
   

Thermoelectric effect in high mobility single layer epitaxial graphene

1. Applied Physics Letters 99, 133102 (2011)

2. X. S. Wu, Yike Hu, Ming Ruan, N. K. Madiomanana, J. Hankinson, M. Sprinkle, C. Berger and W. A. de Heer 
   

Half integer quantum Hall effect in high mobility single layer epitaxial graphene

1. Applied Physics Letters 95, 223108 (2009), selected as a highlight of National High Magnetic Field Laboratory 2009 annual reports.

2. X. S. Wu, M. Sprinkle, X. B. Li, F. Ming, C. Berger and W. A. de Heer 
   

The epitaxial-graphene/graphene-oxide junction, an essential step towards epitaxial graphene electronics

1. Physical Review Letters 101, 026801 (2008), featured in Research Highlights of Nature Nanotechnology, 18 July 2008 and also selected for the July 21, 2008 issue of Virtual Journal of Nanoscale Science & Technology.

2. W. A. de Heer, C. Berger, X. S. Wu, P. N. First, E. H. Conrad, X. B. Li, T. B. Li, M. Sprinkle, J. Hass, M. L. Sadowski, M. Potemski and G. Martinez 
   

Epitaxial graphene

1. Solid State Communications 143, 92 (2007).

2. X. S. Wu, X. B. Li, Z. M. Song, C. Berger and W. A. de Heer 
   

Weak antilocalization in epitaxial graphene: evidence for chiral Electrons

1. Physical Review Letters 98, 136801 (2007).

2. C. Berger, Z. M. Song, X. B. Li, X. S. Wu, N. Brown, C. Naud, D. Mayou, T. B. Li, J. Hass, A. N. Marchenkov, E. H. Conrad, P. N. First and W. A. de Heer 
   

Electronic confinement and coherence in patterned epitaxial graphene

1. Science 312, 1191 (2006).

2. X. S. Wu, P. W. Adams, Y. Yang and R. L. McCarley 
   

Spin proximity effect in ultrathin superconducting Be-Au bilayers

1. Physical Review Letters 96, 127002 (2006), featured in Physical Review Focus, 5 April 2006.

2. X. S. Wu, P. W. Adams and G. Catelani 
   

Orbital response of evanescent cooper pairs in paramagnetically limited Al films

1. Physical Review Letters 95, 167001 (2005).

2. D. P. Young, M. Moldovan, X. S. Wu, P. W. Adams, and Julia Y. Chan 
   

Low-temperature susceptibility of the noncentrosymmetric superconductor CePt3Si

1. Physical Review Letters 94, 107001 (2005).

Book Chapter

• X. S. Wu 
  

Growth of epitaxial graphene on SiC

• Chapter in the Two-dimensional carbon: Fundamental properties, synthesis, characterization, and applications, Pan Stanford Publishing (2014).

• W. A. de Heer, X. S. Wu, C. Berger 
  

Epitaxial graphene

• Chapter in the Handbook of Nanophysics: Functional Nanomaterials, Taylor and Francis Books, ed. by Klaus D. Sattler (2010).

• C. Berger, X. S. Wu, P. N. First, E. H. Conrad, X. B. Li, M. Sprinkle, J. Hass, F. Varchon, L. Magaud, M. L. Sadowski, M. Potemski, G. Martinez and W. A. de Heer 
  

Dirac particles in epitaxial graphene films grown on SiC

• Chapter in the Advances in Solid State Physics, Taylor and Francis Books, ed. by Klaus D. Sattler (2008).