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- Andrea F Young, Cory R. Dean, +7 authors Philip Kim
- 2012
Electronic systems with multiple degenerate degrees of freedom can support a rich variety of broken symmetry states. In a graphene Landau level (LL), strong Coulomb interactions and the fourfold… (More)
- Charlie R Dean, Andrea F Young, +7 authors Kenneth L. Shepard
- 2011
The fractional quantum Hall effect1–4 (FQHE) in an electron gas with multiple internal degrees of freedom provides a model system to study the interplay between symmetry breaking and emergent… (More)
- Patrick Maher, Lei Wang, +9 authors Cory R. Dean
- Science
- 2014
Symmetry-breaking in a quantum system often leads to complex emergent behavior. In bilayer graphene (BLG), an electric field applied perpendicular to the basal plane breaks the inversion symmetry of… (More)
- Erik A. Henriksen, Paul Cadden-Zimansky, +7 authors Horst L. Stormer
- Physical review letters
- 2010
We report a study of the cyclotron resonance (CR) transitions to and from the unusual n=0 Landau level (LL) in monolayer graphene. Unexpectedly, we find the CR transition energy exhibits large (up to… (More)
- Y. P. Zhao, Paul Cadden-Zimansky, Zongcai Jiang, Philip Kim
- Physical review letters
- 2010
The quantum Hall effect near the charge neutrality point in bilayer graphene is investigated in high magnetic fields of up to 35 T using electronic transport measurements. In the high-field regime,… (More)
- Fereshte Ghahari, Yongxi Zhao, Paul Cadden-Zimansky, Kirill I. Bolotin, Philip Kim
- Physical review letters
- 2011
We report on magnetotransport measurements of multiterminal suspended graphene devices. Fully developed integer quantum Hall states appear in magnetic fields as low as 2 T. At higher fields the… (More)
- Paul Cadden-Zimansky, Venkat Chandrasekhar
- Physical review letters
- 2006
We examine nonlocal effects between normal-metal gold probes connected by superconducting aluminum. For highly transparent Au/Al interfaces, we find nonlocal voltages that obey a spatial and… (More)
- Y. P. Zhao, Paul Cadden-Zimansky, Fereshte Ghahari, Philip Kim
- Physical review letters
- 2012
We report on transport measurements of the insulating state that forms at the charge neutrality point of graphene in a magnetic field. Using both conventional two-terminal measurements, sensitive to… (More)
- Cory R. Dean, Andrea F Young, +7 authors Ken L. Shepard
- 2010
C.R. Dean, A.F. Young, P. Cadden-Zimansky, L. Wang, H. Ren, K. Watanabe, T. Taniguchi, P. Kim, J. Hone, K.L. Shepard Department of Electrical Engineering, Columbia University, New York, NY, 10027,… (More)
Andreev interferometers, hybrid normal–superconducting loops, are well suited for studying phase-coherent effects, as they combine the robust quantum phase of a superconductor with a finite… (More)