First-order superconductor-to-insulator transition: Evidence for a supersolid phase

Journal Article · Mon Apr 01 00:00:00 EST 1996 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.53.R8867· OSTI ID:280215

Roddick, E ^[1]

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1. Department of Physics, The Ohio State University, Columbus, Ohio 43210 (United States)

The superconductor-to-insulator transition in the presence of long-range Coulomb interactions is studied using Monte Carlo techniques. At integer filling the transition is second order. At half-filling, we find evidence of a first-order transition to a state with nonzero {ital S}{sub {pi},{pi}}. No intervening supersolid phase is observed. Off half-filling, two separate transitions are found. The transition from the superconducting to a supersolid phase is second order followed by another second-order transition between the supersolid and an insulating phase. {copyright} {ital 1996 The American Physical Society.}

• Research Organization: Purdue Univ., West Lafayette, IN (United States)
• DOE Contract Number: FG02-90ER45427
• OSTI ID: 280215
• Journal Information: Physical Review, B: Condensed Matter, Vol. 53, Issue 14; Other Information: PBD: Apr 1996
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
SUPERCONDUCTIVITY
PHASE TRANSFORMATIONS
MONTE CARLO METHOD
HUBBARD MODEL
COULOMB FIELD
PHASE STUDIES