Latest news
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"Mott physics beyond the Heisenberg model", EPFL, Switzerland (26-28 June 2012)
I will give an invited talk on our work on quantum physics on the pyrochlore lattice at this workshop in Lausanne in late June this year.
(published 20 Feb. 2012) -
Highly Frustrated Magnetism 2012, McMaster University, Canada (4-8 June 2012)
I will give an invited talk on our recent work on order-by-quantum-disorder physics in Er2Ti2O7 at the HFM 2012 meeting at McMaster University.
(published 2 Dec. 2011) -
Definitive Evidence for Order-by-Quantum-Disorder in Er2Ti2O7 now on arXiv
In this paper, we exhibit for the first time definitive evidence of order-by-disorder in a real material, namely Er2Ti2O7. This is done by showing (1) a very general proof of the existence of a robust U(1) degeneracy of mean-field states on the pyrochlore lattice, (2) by extracting the Hamiltonian parameters by fitting spin-wave theory with high-field inelastic neutron scattering measurements, which (3) places Er2Ti2O7 in a region of parameter space where it is described by its classical ground states which are precisely those of the degenerate U(1) manifold. The proof of order-by-disorder resides precisely within the robustness of the degeneracy. Order-by-disorder driven by quantum fluctuations is shown to describe all accessible experimental features. Several other predictions, in particular the existence of a measurable gap are described, and many comparisons with experiments are made. The manuscript with details of this work is now available on arXiv. See on the Research & publications page »
(published 5 Apr. 2012) -
March meeting talk slides now online
The slides of the talks I gave at the March meeting are now online.
(published 3 Mar. 2012)
See on the Impurity Project page » | See on the Pyrochlore Project page » -
APS March Meeting (27 Feb.-2 Mar. 2012)
I will give an invited talk on our work on impurities in frustrated magnets (Tues. 28 Feb., 4:54pm, room 253AB), and a contributed talk about our recent work on Quantum Spin Ice (Wed. 29 Feb., 12:27pm, room 208) at the March meeting, in Boston.
(published 28 Oct. 2011) -
Coulombic Quantum Liquids in Spin-1/2 Pyrochlores published in PRL
Our "gMFT" paper on spin-1/2 pyrochlores was published online in PRL today. See on the Research & publications page »
(published 19 Jan. 2012) -
Frustration in Brazil (11-17 Dec. 2011)
I will give a talk about our recent work on Quantum Spin Ice at this Frustrated Magnetism conference in Brazil in December.
(published 30 Mar. 2011) -
Station Q Fall Meeting
I will attend the Station Q Fall Meeting, to be held December 2nd-4th at the KITP, in Santa Barbara.
(published 20 Oct. 2011) -
Coulombic Quantum Liquids in Spin-1/2 Pyrochlores (arXiv) accepted by PRL
Our "gMFT" paper (arXiv) on spin-1/2 pyrochlores was accepted for publication by PRL today. See on the Research & publications page »
(published 11 Nov. 2011) -
Coulombic Quantum Liquids in Spin-1/2 Pyrochlores now on arXiv
In this paper, we give a nonperturbative study of spin-1/2 magnets on the pyrochlore lattice using a novel slave-particle approach and a "gauge Mean Field Theory". We show that the phase diagram contains two exotic (Coulombic) phases, the well-known U(1) Quantum Spin Liquid, which contains photon and monopole excitations, and a new phase of matter, the U(1) Coulomb Ferromagnet, which we characterize. The manuscript with details of this work is now available on arXiv. See on the Research & publications page »
(published 11 Oct. 2011) -
Quantum Excitations in Quantum Spin Ice is now published in PRX, with a "Viewpoint" in Physics by Rajiv Singh
We have been working on Yb2Ti2O7, a rare-earth pyrochlore material with the (experimental) group of Bruce Gaulin. We demonstrated that this material was a quantum version of spin ice and was likely to exhibit U(1) quantum spin liquid behavior in low field and at low temperature. The manuscript with details of this work is now published in PRX, and is accompanied by a Viewpoint in Physics by R. Singh. See on the Research & publications page »
(published 3 Oct. 2011) -
Impurity Effects in Highly Frustrated Diamond Lattice Antiferromagnets published in PRB
Our work on impurity effects in highly frustrated diamond lattice antiferromagnets is now published in PRB. Check out the new figures. See on the Research & publications page »
(published 29 Aug. 2011) -
Quantum Excitations in Quantum Spin Ice (arXiv) accepted for publication by PRX
Our work on Yb2Ti2O7 (and quantum spin ices in general) and the putative U(1) QSL within it was accepted by PRX, the new APS "excellence journal". It should appear very soon and will be free to read. See on the Research & publications page »
(published 5 Aug. 2011) -
Impurity Effects in Highly Frustrated Diamond Lattice Antiferromagnets (arXiv) accepted for publication by PRB
Our work on impurity effects in highly frustrated diamond lattice antiferromagnets was accepted by PRB. It will be published soon and is already avaible on arXiv. See on the Research & publications page »
(published 8 Jul. 2011)
Who I am
Hi, I am Lucile Savary, I am a condensed matter theory PhD student of Leon Balents, at UCSB. My research focuses on frustrated magnetism and, in particular, on Quantum Spin Liquids in real materials. Read more »
To contact me
lsavary@physics.ucsb.eduDepartment of Physics
University of California, Santa Barbara
Santa Barbara, CA 93106-9530
U.S.A.
