科研成果

2016
Zhang C-L, Tong B, Yuan Z, Lin Z, Wang J, Xi C-Y, Wang Z, Jia S, Zhang C. Singature of Chiral Fermion Instability in Ultraquantum Weyl Semimetal TaAs. [Internet]. 2016. 访问链接
2015
Zhang C, Du R-R, Manfra MJ, Pfeiffer LN, West KW. Transport of a Sliding Wigner Crystal in the Four Flux Composite Fermion Regime. Physical Review B [Internet]. 2015;92(075434). 访问链接Abstract
In two-dimensional (2D) electron systems, Wigner crystals (WC) and fractional quantum Hall effect (FQHE) liquids are competing ground states under low temperatures (T) and high magnetic fields (B). Here we report differential conductivity results demonstrating the reentrant insulating phase around ν=1/5 in a 2D hole system in AlGaAs/GaAs quantum wells and unexpected features in the solid-liquid phase transition between WC and FQHE liquids in ultrahigh magnetic fields up to 45 T. Remarkably, the electric field (E) plays an equivalent role as the temperature does in our phase diagram. From the E−T “duality” analysis, a characteristic length of 450 nm is derived, which can be understood as the phase-coherent domain size of WC. Moreover, evidence shows that with weak disorder the insulating phase and composite fermion liquid could be coexisting around ν= 1/5, pointing to the possibility that the insulating phase is the four flux quantum Wigner crystal, as proposed by theories.
2013
Qu F, Zhang C, Du R-R, Lu L. Coexistence of bulk and surface Shubnikov-de haas oscillations in Bi 2Se3. Journal of Low Temperature Physics. 2013;170(5-6):397-402. SCI被引用次数:6.
2012
Liu G, Zhang C, Tsui DC, Knez I, Levine A, Du RR, Pfeiffer LN, West KW. Enhancement of the ν=5/2 fractional quantum Hall state in a small in-plane magnetic field. 2012;(19). SCI被引用次数:12.
Zhang C, Huan C, Xia JS, Sullivan NS, Pan W, Baldwin KW, West KW, Pfeiffer LN, Tsui DC. Spin polarization of the ν=12/5 fractional quantum Hall state. 2012;(24). SCI被引用次数:13.
2011
Dai Y, Stone K, Knez I, Zhang C, Du RR, Yang C, Pfeiffer LN, West KW. Response of the microwave-induced cyclotron harmonic resistance spike to an in-plane magnetic field. 2011;(24). SCI被引用次数:14.
2010
Zhang C, Knuuttila T, Dai Y, Du RR, Pfeiffer LN, West KW. ν=5/2 fractional quantum hall effect at 10 T: Implications for the Pfaffian state. 2010;(16). SCI被引用次数:26.