Quantum matter in ultrahigh magnetic fields

Abstract

In writing this report we had two goals in mind. The first is to provide a survey of a subset of discoveries from recent experiments performed on quantum matter in high magnetic fields, and to anticipate the scientific opportunities to be realized in even higher fields. Hopefully, the survey will convey a sense of the excitement and pace of high-magnetic-field research in the quantum-matter community to a broader audience (undergraduates, especially). The second goal is to discuss the comparative merits of two options: a pulsed-field facility for attaining a magnetic field of 150 Tesla (of duration 1-10 msec) or a DC field facility that attains 60 Tesla. A workshop involving leading scientists involved with quantum phenomena in high magnetic fields was held at NSF, Alexandria Sep. 21,22 (2017) to address these issues.

arXiv comment24 pages, 14 figures, Report on workshop on "Exploring quantum phenomena and quantum matter in ultrahigh magnetic fields."

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• Topological Crystalline Insulators
• Hofstadter's butterfly in moire superlattices: A fractal quantum Hall effect
• Massive Dirac fermions and Hofstadter butterfly in a van der Waals heterostructure
• Observation of the chiral anomaly induced negative magneto-resistance in 3D Weyl semi-metal TaAs
• Topological Crystalline Insulators in the SnTe Material Class
• Cloning of Dirac fermions in graphene superlattices
• Theory of Intertwined Orders in High Temperature Superconductors
• Experimental realization of a topological crystalline insulator in SnTe
• Topological crystalline insulator states in Pb(1-x)Sn(x)Se
• Evidence for an electron nematic phase transition in underdoped iron pnictide superconductors
• Signatures of the Adler-Bell-Jackiw chiral anomaly in a Weyl Fermion semimetal
• The chiral anomaly and thermopower of Weyl fermions in the half-Heusler GdPtBi
• Visualizing pair formation on the atomic scale in the high-Tc superconductor Bi2Sr2CaCu2O8+d
• Three-Dimensional Charge Density Wave Order in YBa2Cu3O6.67 at High Magnetic Fields
• Quantum oscillations in Kondo Insulator SmB${}_6$
• Diamagnetism and Cooper pairing above $T_c$ in cuprates
• Dimensional reduction at a quantum critical point
• Fractional fractal quantum Hall effect in graphene superlattices
• On the search for the chiral anomaly in Weyl semimetals: The negative longitudinal magnetoresistance
• Evidence for massive bulk Dirac Fermions in Pb${}_{1-x}$Sn${}_x$Se from Nernst and thermopower experiments
• Hall effect of triplons in a dimerized quantum magnet
• Magneto-transport phenomena related to the chiral anomaly in Weyl semimetals
• Evidence of precursor superconductivity as high as 180 K from infrared spectroscopy
• Large, nonsaturating thermopower in a quantizing magnetic field
• The magnetic phase diagram of underdoped YBa2Cu3Oy inferred from torque magnetization and thermal conductivity
• Adiabatic dechiralisation and thermodynamics of Weyl semimetals