Li Lu

Professor and Directors,

Daniel Chee Tsui Laboratory, &

Laboratory for Solid State Quantum Information and Computation

Institute of Physics, Chinese Academy of Sciences

Tel: (010)-82649151

Education, Employment and Service:

Li Lu obtained his B. S. degree from Nanjing University in 1982 and his Ph. D. from IOP, CAS in 1992. During 1992-1995 he was employed as a research associate in the Department of Physics, University of California at Berkeley. He returned to IOP, CAS in 1995, and became a full researcher there since 1996.

In 2000 Dr. Li Lu initiated the Laboratory of Physics under Extreme Conditions in IOP and served as the first director during 2000-2004. In 2006 he jointly initiated the Daniel Chee Tsui Laboratory in IOP, and served as the domestic director since then. During 2006-2012 he served as the deputy director general of IOP. Since 2009 he also served as the director of the Laboratory for Solid State Quantum Information and Computation in IOP.

Dr. Li Lu is the liaison of the Chinese Physical Society (CPS) in IUPAP since 2011, a member of Working Group Two (Communication in Physics) of IUPAP since 2011, the deputy chair (2001-2013) and the chair (2013-) of the Committee on Low Temperature Physics, CPS, the chair of the Commission on Publication, CPS since 2007. He was a member of the Low Temperature Commission, IUPAP during 2002-2008, a member of the advisory board of the “Journal of Low Temperature Physics” during 2005-2011, and the vice chief editor of CPS’ society magazine “Wuli” (meaning “Physics” in Chinese) during 2007-2011. Dr. Li Lu was elected to be an APS fellow in 2012.

Synergistic Activities:

  1.   Coordinator (China side), China-France Workshop on the Frontiers of Condensed Matter Physics, Beijing, 2000.

  2.   Coordinator (China side), China-US Workshop on Materials Science, Beijing, May 23-25, 2005, co-sponsored by NSF China and NSF USA.

  3.   Co-chair, 26th International Conference on Low Temperature Physics (LT-26), Beijing, August 10-17, 2011.

Research Interests and Main Achievements:

Dr. Li Lu’s main research area is electron transport in low-dimensional materials and nano-devices. He and his coworkers have discovered a number of new phenomena in alkali-doped C60, carbon nanotubes, graphite/graphene, and topological insulators. He is also specialized in low and ultra-low temperature experiments, developed a number of extremely sensitive methods to measure the thermal, mechanical, electric and magnetic properties of small samples. Dr. Li Lu has authored/coauthored 100+ peer reviewed papers. His main achievements include:

  1. Obtained the only Hall effect data on single crystals of alkali-metal doped C60 in 1995 [1].

  2. Developed a 3 omega method for measuring the thermal properties of nanotubes/nanowires [3]; found by using this method a linear temperature dependence of specific heat and a quadratic temperature dependence of thermal conductivity on multiwalled carbon nanotubes in 1999 [2].

  3. Observed a logarithmic temperature-dependent suppression in the thermoelectric power of multiwalled carbon nanotube bundles below ~20 K [4], and the appearance of Coulomb blockade and Fano resonance in the tunneling spectra of multiwalled carbon nanotube bundles at low temperatures [5]. The results demonstrate the existence of a Coulomb gap in that system. Found a metal-insulator transition in single-walled carbon nanotube bundles driven by hydrostatic pressure [7], corresponding to the collapse of the tubes under pressure as expected.

  4. Started to explore all-graphite nano-electronic circuits in 2003, succeeded in fabricating few layer graphite nanostructures of the “T” and “Y” shapes aligned in the principle axes of HOPG, and performed multi-terminal electron transport measurements in 2004 [6] [main results unpublished].

  5. Studied the weak antilocalization of electrons in three-dimensional topological insulator (TI) Bi2Se3 in 2010 [9]; observed Altshuler-Aronov-Spivak, Aharonov- Bohm and Aharonov-Casher oscillations in square-ring interferometers made of TI in 2011 [11]; found a zero-bias conductance peak in interfacial junctions between s-wave superconductors and the TI in 2012 [12]; constructed Josephson junctions and superconducting quantum interference devices by using proximity-effect-induced superconducting TIs in 2012 [13]; characterized the proximity-effect-induced superconducting states in TIs by local-probe transport measurements in 2012 [14].

  6. Reached 4 mK electron temperature in two-dimensional electron gases in a home-made Cu nuclear demagnetization system in 2010 [unpublished]. The obtained electron temperature is among the lowest records in similar materials in the world.

Selected Publications:

  1. 1. Universal form of Hall coefficient in K and Rb doped single crystal C60, L. Lu, V. H. Crespi, M. S. Fuhrer, A. Zettl, and M. L. Cohen, Phys. Rev. Lett. 74, 1637 (1995).

  2. 2. Linear specific heat of multiwall carbon nanotubes, W. Yi, L. Lu, Zhang Dian-lin, Z. W. Pan, and S. S. Xie, Phys. Rev. B 59, R9015 (1999) (cited 227 times).

  3. 3. 3 omega method for specific heat and thermal conductivity measurements, L. Lu, W. Yi, and D. L. Zhang, Review of Scientific Instruments 72, 2996 (2001) (cited 144 times).

  4. 4. Observation of a logarithmic temperature dependence of thermoelectric power in multiwall carbon nanotubes, N. Kang, L. Lu, W. J. Kong et al., Phys. Rev. B 67, 033404 (2003).

  5. 5. Tunneling into multiwalled carbon nanotubes: Coulomb blockade and the Fano resonance, W. Yi, L. Lu, H. Hu, Z.W. Pan, S. S. Xie, Phys. Rev. Lett. 91, 076801 (2003).

  6. 6. Fabrication of graphite nano-structures, S. P. Liu, F. Zhou, A. Z. Jin, H. F. Yang, Y. J. Ma, H. Li, C. Z. Gu, L. Lu, B. Jiang, Q. S. Zheng, S. Wang, L. M. Peng, Acta Physica Sinica 54, 4251 (2005).

  7. 7. Pressure-induced transition in magnetoresistance of single-walled carbon nanotubes, J. Z. Cai, L. Lu, W. J. Kong, H. W. Zhu, C. Zhang, B. Q. Wei, D. H. Wu, and F. Liu, Phys. Rev. Lett. 97, 026402 (2006)

  8. 8. Self-retracting motion of graphite microflakes, Quanshui Zheng, B. Jiang, S. P. Liu, J. Zhu, Q. Jiang, Y. X. Weng, L. Lu, S. Wang, Q. K. Xue, L. M. Peng, Phys. Rev. Lett. 100, 067205 (2008)

  9. 9. Gate-voltage control of chemical potential and weak antilocalization in Bi2Se3, J. Chen, H. J. Qin, F. Yang, J. Liu, T. Guan, F. M. Qu, G. H. Zhang, J. R. Shi, X. C. Xie, C. L. Yang, K. H.Wu, Y. Q. Li, and L. Lu, Phys. Rev. Lett. 105, 176602 (2010).

  10. 10.Shubnikov-de Haas oscillations of a single layer graphene under dc current bias, Z. B. Tan, C. L. Tan, L. Ma, G. T. Liu, L. Lu, and C. L. Yang, Phys. Rev. B 84, 115429 (2011).

  11. 11.Aharonov-Casher effect in Bi2Se3 square-ring interferometers, F. M. Qu, F. Yang, J. Chen, J. Shen, Y. Ding, J. B. Lu, Y. J. Song, H. X. Yang, G. T. Liu, J. Fan, Y. Q. Li, Z. Q. Ji, C. L Yang, and L. Lu, Phys. Rev. Lett. 107, 016802 (2011).

  12. 12.Proximity effect at superconducting Sn-Bi2Se3 interface, F. Yang, Y. Ding, F. M. Qu, J. Shen, J. Chen, Z. C. Wei, Z. Q. Ji, G. T. Liu, J. Fan, C. L. Yang, T. Xiang, and L. Lu, Phys. Rev. B 85, 104508 (2012).

  13. 13.Strong superconducting proximity effect in Pb-Bi2Te3 hybrid structures, F. M. Qu, F. Yang, J. Shen, Y. Ding, J. Chen, Z. Q. Ji, G. T. Liu, J. Fan, X. N. Jing, C. L. Yang and L. Lu, Scientific Reports 2, 339 (2012).

  14. 14.Proximity-effect-induced superconducting phase in the topological insulator Bi2Se3, F. Yang, F. M. Qu, J. Shen, Y. Ding, J. Chen, Z. Q. Ji, G. T. Liu, J. Fan, C. L. Yang, L. Fu, and L. Lu, Phys. Rev. B 86, 134504 (2012).