Explanipedia

Conformal boundary as holographic dual to the hyperbolic fracton model Open

Alejo Costa Duran, Mauricio Sturla, Ludovic D. C. Jaubert, Han Yan · 2025

In addition to describing our universe, gravitational theories profoundly inspire the study of emergent properties of exotic phases of matter. While the Anti-de Sitter/conformal field theory (AdS/CFT) correspondence is one of the most cele…

Coupling quantum spin ice to matter on the centered pyrochlore lattice Open

Rajah P. Nutakki, Sylvain Capponi, Ludovic D. C. Jaubert, Lode Pollet · 2025

The low-energy physics of quantum spin ice is known to support an emergent form of quantum electrodynamics (QED), where magnetic monopoles exist and the fine-structure constant is material dependent. In this article, we show how this QED i…

Interacting-cluster spin liquids with robust flat bands evolving into higher-rank half-moon phases and topological Lifshitz transitions Open

Naïmo Davier, Ludovic D. C. Jaubert · 2025

Classical spin liquids are disordered magnetic phases, governed by local constraints that often give rise to flat-band ground states. When constraints take the form of a zero-divergence field within a cluster of spins, the spin liquid is o…

Pinch line spin liquids as layered Coulomb phases and applications to cubic models Open

Naïmo Davier, F. A. Gómez Albarracín, H. D. Rosales, Pierre Pujol, Ludovic D. C. Jaubert · 2025

International audience

Hidden order and confinement transition in a fully packed monopole liquid Open

NULL AUTHOR_ID, S. A. Grigera, P. C. W. Holdsworth, Ludovic D. C. Jaubert, Roderich Moessner , et al. · 2025

International audience

Coupling quantum spin ice to matter on the centered pyrochlore lattice Open

Rajah P. Nutakki, Sylvain Capponi, Ludovic D. C. Jaubert, Lode Pollet · 2025

The low-energy physics of quantum spin ice is known to support an emergent form of quantum electrodynamics (QED), where magnetic monopoles exist and the fine structure constant is material dependent. In this article, we show how this QED i…

Human-machine collaboration: Ordering mechanism of rank-2 spin liquid on breathing pyrochlore lattice Open

Nicolas Sadoune, Ke Liu, Han Yan, Ludovic D. C. Jaubert, Nic Shannon , et al. · 2025

Machine-learning algorithms thrive on large data sets of good quality. Here we show that they can also excel in a typical research setting with little data of limited quality, through an interplay of insights coming from machine and human …

Spin-Peierls Transition in the Frustrated Spinels and Open

Ludovic D. C. Jaubert, Yasir Iqbal, Harald O. Jeschke · 2025

The chromium spinels MgCr_{2}O_{4} and ZnCr_{2}O_{4} are prime examples of the highly frustrated pyrochlore lattice antiferromagnet. Experiment has carefully established that both materials, upon cooling, distort to lower symmetry and orde…

Emergent Gauge Fields in Frustrated Systems Open

Ludovic D. C. Jaubert · 2024

Perfectly hidden order and Z2 confinement transition in a fully packed monopole liquid Open

Attila Szabó, S. A. Grigera, P. C. W. Holdsworth, Ludovic D. C. Jaubert, Roderich Moessner , et al. · 2024

We investigate a variant of spin ice whose degenerate ground states are densely packed monopole configurations. An applied field drives this model through a Z2 confinement transition. This phase change is a variant of the U(1) Kasteleyn tr…

Spin-Peierls transition in the frustrated spinels ZnCr2O4 and MgCr2O4 Open

Ludovic D. C. Jaubert, Yasir Iqbal, Harald O. Jeschke · 2024

The chromium spinels MgCr2O4 and ZnCr2O4 are prime examples of the highly frustrated pyrochlore lattice antiferromagnet. Experiment has carefully established that both materials, upon cooling, distort to lower symmetry and order magnetical…

From chiral spin liquids to skyrmion fluids and crystals, and their interplay with itinerant electrons Open

F. A. Gómez Albarracín, H. D. Rosales, Masafumi Udagawa, Pierre Pujol, Ludovic D. C. Jaubert · 2024

The physics of skyrmions, and in particular the issue of how to isolate and manipulate them individually, is a subject of major importance nowadays in the community of magnetism. In this article we present an in-depth extension of a study …

Human-machine collaboration: ordering mechanism of rank-2 spin liquid on breathing pyrochlore lattice Open

Nicolas Sadoune, Ke Liu, Han Yan, Ludovic D. C. Jaubert, Nic Shannon , et al. · 2024

Machine learning algorithms thrive on large data sets of good quality. Here we show that they can also excel in a typical research setting with little data of limited quality, through an interplay of insights coming from machine, and human…

From chiral spin liquids to skyrmion fluids and crystals, and their interplay with itinerant electrons Open

F. A. Gómez Albarracín, H. D. Rosales, Masafumi Udagawa, Pierre Pujol, Ludovic D. C. Jaubert · 2023

The physics of skyrmions, and in particular the issue of how to isolate and manipulate them individually, is a subject of major importance nowadays in the community of magnetism. In this article we present an in-depth extension of a study …

The classical Heisenberg model on the centred pyrochlore lattice Open

Rajah P. Nutakki, Ludovic D. C. Jaubert, Lode Pollet · 2023

The centred pyrochlore lattice is a novel geometrically frustrated lattice, realized in the metal-organic framework Mn(ta) _2 [Phys. Rev. Research 5, L022018 (2023)] where the basic unit of spins is a five site centred tetrahedron. Here…

Curie-law crossover in spin liquids Open

Rico Pohle, Ludovic D. C. Jaubert · 2023

International audience

Report on 2303.11010v2 Open

Rajah P. Nutakki, Ludovic D. C. Jaubert, Lode Pollet · 2023

The centred pyrochlore lattice is a novel geometrically frustrated lattice, realized in the metal-organic framework Mn(ta) 2 [1] where the basic unit of spins is a five site centred tetrahedron.Here, we present an in-depth theoretical stud…

Frustration on a centered pyrochlore lattice in metal-organic frameworks Open

Rajah P. Nutakki, Richard Röß‐Ohlenroth, Dirk Volkmer, Anton Jesche, Hans‐Albrecht Krug von Nidda , et al. · 2023

Geometric frustration inhibits magnetic systems from ordering, opening a window to unconventional phases of matter. The paradigmatic frustrated lattice in three dimensions to host a spin liquid is the pyrochlore, although there remain few …

Curie-law crossover in spin liquids Open

Rico Pohle, Ludovic D. C. Jaubert · 2023

The Curie-Weiss law is widely used to estimate the strength of frustration in frustrated magnets. However, the Curie-Weiss law was originally derived as an estimate of magnetic correlations close to a mean-field phase transition, which -- …

Report on 2303.11010v2 Open

Rajah P. Nutakki, Ludovic D. C. Jaubert, Lode Pollet · 2023

The centred pyrochlore lattice is a novel geometrically frustrated lattice, realized in the metal-organic framework Mn(ta) 2 [1] where the basic unit of spins is a five site centred tetrahedron.Here, we present an in-depth theoretical stud…

The Classical Heisenberg Model on the Centred Pyrochlore Lattice Open

Rajah P. Nutakki, Ludovic D. C. Jaubert, Lode Pollet · 2023

The centred pyrochlore lattice is a novel geometrically frustrated lattice, realized in the metal-organic framework Mn(ta)$_2$ (arXiv:2203.08780) where the basic unit of spins is a five site centred tetrahedron. Here, we present an in-dept…

Skyrmion Fluid and Bimeron Glass Protected by a Chiral Spin Liquid on a Kagome Lattice Open

H. D. Rosales, F. A. Gómez Albarracín, Pierre Pujol, Ludovic D. C. Jaubert · 2023

Skyrmions are of interest both from a fundamental and technological point of view, due to their potential to act as information carriers. But one challenge concerns their manipulation, especially at high temperature where thermal fluctuati…

Dynamical Scaling as a Signature of Multiple Phase Competition in Open

Allen Scheie, Owen Benton, Mathieu Taillefumier, Ludovic D. C. Jaubert, Gabriele Sala , et al. · 2022

Yb_{2}Ti_{2}O_{7} is a celebrated example of a pyrochlore magnet with highly frustrated, anisotropic exchange interactions. To date, attention has largely focused on its unusual, static properties, many of which can be understood as coming…

Schwinger boson theory of the kagome antiferromagnet Open

Tristan Lugan, Ludovic D. C. Jaubert, Masafumi Udagawa, Arnaud Ralko · 2022

We study the kagome antiferromagnet for quantum spin-1/2 with first J1,\nsecond J2 and third J3 neighbour exchanges, along the J2 = J3 = J line. We use\nSchwinger-boson mean-field theory for the precise determination of the phase\ndiagram,…

Observing Magnetic Monopoles in Spin Ice using Electron Holography Open

Ankur Dhar, Ludovic D. C. Jaubert, Cathal Cassidy, T. Shintake, Nic Shannon · 2022

While there is compelling evidence for the existence of magnetic monopoles in spin ice, the direct observation of a point-like source of magnetic field in these systems remains an open challenge. One promising approach is electron holograp…

Structural magnetic glassiness in the spin ice Open

Anjana Samarakoon, A. Sokolowski, Bastian Klemke, R. Feyerherm, Michael Meißner , et al. · 2022

The origin and nature of glassy dynamics presents one of the central enigmas of condensed-matter physics across a broad range of systems ranging from window glass to spin glasses. The spin-ice compound Dy2Ti2O7, which is perhaps best known…

Frustration on a centred pyrochlore lattice in metal-organic frameworks Open

Rajah P. Nutakki, Richard Röß‐Ohlenroth, Dirk Volkmer, Anton Jesche, Hans‐Albrecht Krug von Nidda , et al. · 2022

Geometric frustration inhibits magnetic systems from ordering, opening a window to unconventional phases of matter. The paradigmatic frustrated lattice in three dimensions to host a spin liquid is the pyrochlore, although there remain few …

Dynamical scaling as a signature of multiple phase competition in Yb$_2$Ti$_2$O$_7$ Open

Allen Scheie, Owen Benton, Mathieu Taillefumier, Ludovic D. C. Jaubert, Gabriele Sala , et al. · 2022

$\rm Yb_2Ti_2O_7$ is a celebrated example of a pyrochlore magnet with highly-frustrated, anisotropic exchange interactions. To date, attention has largely focused on its unusual, static properties, many of which can be understood as coming…

A skyrmion fluid and bimeron glass emerging from competition with a chiral spin liquid Open

H. D. Rosales, F. A. Gómez Albarracín, Pierre Pujol, Ludovic D. C. Jaubert · 2022

Skyrmions are of interest both from a fundamental and technological point of view, due to their potential to act as information carriers. One great challenge concerns their manipulation and control, especially at higher temperatures. Here …

Skyrmion fluid and bimeron glass protected by a chiral spin liquid on a\n kagome lattice Open

H. D. Rosales, F. A. Gómez Albarracín, Pierre Pujol, Ludovic D. C. Jaubert · 2022

Skyrmions are of interest both from a fundamental and technological point of\nview, due to their potential to act as information carriers. But one challenge\nconcerns their manipulation, especially at high temperature where thermal\nfluctu…

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