Zobrazeno 1 - 10
of 332
pro vyhledávání: '"Bourdarot, F"'
Autor:
Dias, M. dos Santos, Biniskos, N., Santos, F. J. dos, Schmalzl, K., Persson, J., Bourdarot, F., Marzari, N., Blügel, S., Brückel, T., Lounis, S.
Publikováno v:
Nat Commun 14, 7321 (2023)
The phase of the quantum-mechanical wave function can encode a topological structure with wide-ranging physical consequences, such as anomalous transport effects and the existence of edge states robust against perturbations. While this has been exhau
Externí odkaz:
http://arxiv.org/abs/2211.16925
Autor:
Qureshi, N., Bourdarot, F., Ressouche, E., Knafo, W., Iga, F., Michimura, S., Regnault, L. -P., Duc, F.
We present a single-crystal neutron diffraction study on the Shastry-Sutherland lattice system TbB$_4$ at zero magnetic field and under pulsed high magnetic fields up to 35 T applied along the crystallographic $c$ axis. While our results confirm the
Externí odkaz:
http://arxiv.org/abs/2209.02061
Autor:
Beauvois, K., Simonet, V., Petit, S., Robert, J., Bourdarot, F., Gospodinov, M., Mukhin, A. A., Ballou, R., Skumryev, V., Ressouche, E.
Publikováno v:
Phys. Rev. Lett. 124, 127202 (2020)
The research field of magnetic frustration is dominated by triangle-based lattices but exotic phenomena can also be observed in pentagonal networks. A peculiar noncollinear magnetic order is indeed known to be stabilized in Bi2Fe4O9 materializing a C
Externí odkaz:
http://arxiv.org/abs/1909.09573
Autor:
Songvilay, M., Bari, M., Ye, Z. -G., Xu, Guangyong, Gehring, P. M., Ratcliff, W. D., Schmalzl, K., Bourdarot, F., Roessli, B., Stock, C.
Publikováno v:
Phys. Rev. Materials 2, 123601 (2018)
Lead halide hybrid perovskites consist of an inorganic framework hosting a molecular cation located in the interstitial space. These compounds have been extensively studied as they have been identified as promising materials for photovoltaic applicat
Externí odkaz:
http://arxiv.org/abs/1809.09878
Autor:
Weber, T., Roessli, B., Stock, C., Keller, T., Schmalzl, K., Bourdarot, F., Georgii, R., Ewings, R. A., Perry, R. S., Böni, P.
Publikováno v:
Phys. Rev. B 96, 184301 (2017)
Magnetic spinels (with chemical formula $AX_{2}$O$_{4}$, with $X$ a 3$d$ transition metal ion) that also have an orbital degeneracy are Jahn-Teller active and hence possess a coupling between spin and lattice degrees of freedom. At high temperatures,
Externí odkaz:
http://arxiv.org/abs/1711.03791
Autor:
Knafo, W., Aoki, D., Scheerer, G. W., Duc, F., Bourdarot, F., Kuwahara, K., Nojiri, H., Regnault, L. -P., Flouquet, J.
A review of recent state-of-the-art pulsed field experiments performed on URu$_2$Si$_2$ under a magnetic field applied along its easy magnetic axis $\mathbf{c}$ is given. Resistivity, magnetization, magnetic susceptibility, Shubnikov-de Haas, and neu
Externí odkaz:
http://arxiv.org/abs/1708.06122
Autor:
Constable, E., Raymond, S., Petit, S., Ressouche, E., Bourdarot, F., Debray, J., Josse, M., Fabelo, O., Berger, H., deBrion, S., Simonet, V.
Publikováno v:
Phys. Rev. B 96, 014413 (2017)
We report a single-crystal neutron diffraction and inelastic neutron scattering study on the spin 1/2 cuprate Cu$_3$Bi(SeO$_3$)$_2$O$_2$Cl, complemented by dielectric and electric polarization measurements. The study clarifies a number of open issues
Externí odkaz:
http://arxiv.org/abs/1704.00915
Autor:
Simutis, G., Gvasaliya, S., Beesetty, N. S., Yoshida, T., Robert, J., Petit, S., Kolesnikov, A. I., Stone, M. B., Bourdarot, F., Walker, H. C., Adroja, D. T., Sobolev, O., Hess, C., Masuda, T., Revcolevschi, A., Büchner, B., Zheludev, A.
Publikováno v:
PRB 95, 054409 (2017)
The low energy magnetic excitation spectrum of the Heisenberg antiferromagnetic $S = 1/2$ chain system Sr$_2$CuO$_3$ with Ni- and Ca-impurities is studied by neutron spectroscopy. In all cases, a defect-induced spectral pseudogap is observed and show
Externí odkaz:
http://arxiv.org/abs/1611.04183
Autor:
Knafo, W., Duc, F., Bourdarot, F., Kuwahara, K., Nojiri, H., Aoki, D., Billette, J., Frings, P., Tonon, X., Lelièvre-Berna, E., Flouquet, J., Regnault, L. -P.
Publikováno v:
Nat. Commun. 7, 13075 (2016)
URu2Si2 is one of the most enigmatic strongly-correlated-electron systems and offers a fertile testing ground for new concepts in condensed matter science. In spite of >30 years of intense research, no consensus on the order parameter of its low-temp
Externí odkaz:
http://arxiv.org/abs/1611.01321
Autor:
Pregelj, M., Zaharko, O., Herak, M., Gomilsek, M., Zorko, A., Chapon, L. C., Bourdarot, F., Berger, H., Arčon, D.
Publikováno v:
Phys. Rev. B 94, 081114(R) (2016)
We investigate the spin-stripe mechanism responsible for the peculiar nanometer modulation of the incommensurate magnetic order that emerges between the vector-chiral and the spin-density-wave phase in the frustrated zigzag spin-1/2 chain compound $\
Externí odkaz:
http://arxiv.org/abs/1608.04495