L. Jaubert

Publications76
h-index18
Citations1,066
Highly Influential Citations41
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Magnetic-Moment Fragmentation and Monopole Crystallization
The Coulomb phase, with its dipolar correlations and pinch-point–scattering patterns, is central to discussions of geometrically frustrated systems, from water ice to binary and mixed-valence alloys,…
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Monopole and Dirac string Dynamics in Spin Ice
Magnetic monopoles have eluded experimental detection since their prediction nearly a century ago by Dirac. Recently it has been shown that classical analogues of these enigmatic particles occur as…
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Magnetic monopole dynamics in spin ice.
TLDR
The diffusive quasi-particle dynamics of real spin ice materials within the 'quantum tunnelling' regime is modelled with Metropolis dynamics, with the particles constrained to move along an underlying network of oriented paths, which are classical analogues of the Dirac strings connecting pairs of Dirac monopoles.
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Theory of multiple-phase competition in pyrochlore magnets with anisotropic exchange with application to Yb 2 Ti 2 O 7 , Er 2 Ti 2 O 7 , and Er 2 Sn 2 O 7
The family of magnetic rare-earth pyrochlore oxides R2M2O7 plays host to a diverse array of exotic phenomena, driven by the interplay between geometrical frustration and spin-orbit interaction, which…
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Three-dimensional Kasteleyn transition: spin ice in a [100] field.
TLDR
The approach to saturated magnetization is, in the low-temperature limit, an example of a 3D Kasteleyn transition, which is topological in the sense that magnetized materials are changed only by excitations that span the entire system.
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Are Multiphase Competition and Order by Disorder the Keys to Understanding Yb(2)Ti(2)O(7)?
TLDR
This work explains how thermal and quantum fluctuations, optimized by order-by-disorder selection, conspire to expand the stability region of a degenerate continuous U(1) manifold against the classical splayed ferromagnetic ground state that is displayed by the sister compound Yb( 2)Ti(2)O(7).
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Topological Sector Fluctuations and Curie Law Crossover in Spin Ice
At low temperatures, a spin ice enters a Coulomb phase - a state with algebraic correlations and topologically constrained spin configurations. In Ho2Ti2O7, we have observed experimentally that this…
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Competing Spin Liquids and Hidden Spin-Nematic Order in Spin Ice with Frustrated Transverse Exchange
Frustration in magnetic interactions can give rise to disordered ground states with subtle and beautiful properties. The spin ices Ho2Ti2O7 and Dy2Ti2O7 exemplify this phenomenon, displaying a…
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Quantum Spin Ice with Frustrated Transverse Exchange: From a π-Flux Phase to a Nematic Quantum Spin Liquid.
TLDR
Using a combination of variational calculations, exact diagonalization, numerical linked-cluster and series expansions, it is found that the previously studied U(1) quantum spin liquid, in its π-flux phase, transforms into a nematic quantumspin liquid at a high-symmetry, SU(2) point.
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Topological Constraints and Defects in Spin Ice
Spin Ice is a model describing a family of frutrated magnetic compounds (Dysprosium Titanate or Holmium Titanate for example), whose main characteristic is to possess a highly degenerate ground state…
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