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5 July 2017

How disorder can turn into long-range order at high magnetic field?

Building on NMR experiments at high magnetic field, physicists have demonstrated that impurity-induced disorder in a Mott insulator can lead to the revival of long-range order.

Phys. Rev. Lett. 118, 067203 (2017)

Phys. Rev. Lett. 118, 067204 (2017)

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2 March 2017

Local injection of pure spin current generates electric current vortices

In a paper, published by Applied Physics Letters, Yaroslaw Bazaliy of the University of South Carolina and Revaz Ramazashvili of the LPT have studied local injection of pure spin current into an electrically disconnected ferromagnetic-normal sandwich. Curiously enough, it turns out that local spin injection inevitably induces electric current vortices, that are centered at the normal-ferromagnetic interface. This finding invites us to revisit various aspects of spin injection in spintronic devices.

Appl. Phys. Lett. 110, 092405 (2017)

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11 October 2016

Temperature dependence of the NMR relaxation rate 1/T1 for quantum spin chains

Maxime Dupont, PhD student in LPT, together with Sylvain Capponi and Nicolas Laflorencie, studied dynamical correlations at finite temperature in quantum spin chains using matrix product state techniques, thus allowing to extract the NMR relaxation rate. This work addresses the delicate question of the low-temperature dimensional crossover in realistic materials, such as coupled S=1 chains material DTN.

Phys. Rev. B 94, 144409 (2016) (Editors’ Suggestion)

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7 March 2016

Collective behavior in the big data era: can we enhance collective intelligence in human groups ?

This workshop promotes an interdisciplinary approach to studying collective behavior in human groups, fostering cross-disciplinary interactions between various communities: quantitative ethology, social sciences, economics, information technologies and statistical physics.

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17 November 2015

International workshop Theory Days 2015

Following the tradition of the previous successful six meetings in Toulouse, the Theory Days workshop aims at stimulating constructive discussions, collaborations, and knowledge exchange among a selected group of theoreticians.

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17 November 2015

Éric Suraud elected as a Fellow of the APS

Éric Suraud, a professor at the Université Paul Sabatier and the LPT since 1992, has been elected as a Fellow of the American Physical Society, for major contributions to cluster physics...

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