Pressure-driven collapse of the relativistic electronic ground state in a honeycomb iridate

Autor: Clancy, J. P., Gretarsson, H., Sears, J. A., Singh, Yogesh, Desgreniers, S., Mehlawat, Kavita, Layek, Samar, Rozenberg, Gregory Kh., Ding, Yang, Upton, M. H., Casa, D., Chen, N., Im, Junhyuck, Lee, Yongjae, Yadav, R., Hozoi, L., Efremov, D., Brink, J. van den, Kim, Young-June

Publikováno v: npj Quantum Materials 3, 35 (2018)

The electronic ground state in many iridate materials is described by a complex wave-function in which spin and orbital angular momenta are entangled due to relativistic spin-orbit coupling (SOC). Such a localized electronic state carries an effectiv

Externí odkaz: http://arxiv.org/abs/1803.04056

Sudden reversal in the pressure dependence of Tc in the iron-based superconductor CsFe2As2: A possible link between inelastic scattering and pairing symmetry

Autor: Tafti, F. F., Clancy, J. P., Lapointe-Major, M., Collignon, C., Faucher, S., Sears, J., Juneau-Fecteau, A., Doiron-Leyraud, N., Wang, A. F., Luo, X. G., Chen, X. H., Desgreniers, S., Kim, Young-June, Taillefer, Louis

Publikováno v: Phys. Rev. B 89, 134502 (2014)

We report a sudden reversal in the pressure dependence of Tc in the iron-based superconductor CsFe2As2, similar to that discovered recently in KFe2As2 [Tafti et al., Nat. Phys. 9, 349 (2013)]. As in KFe2As2, we observe no change in the Hall coefficie

Externí odkaz: http://arxiv.org/abs/1403.0110

Bi 2O 3 under hydrostatic pressure: observation of a pressure-induced amorphization

Autor: Chouinard, C., Desgreniers, S. ^*

Publikováno v: In Solid State Communications 1999 113(3):125-129

The Ba 4d-4f giant dipole resonance in complex Ba/Si compounds

Autor: Sahle, C.J., Sternemann, C., Sternemann, H., Tse, J.S., Gordon, R.A., Desgreniers, S., Maekawa, S., Yamanaka, S., Lehmkuehler, F., Wieland, D.C.F., Mende, K., Huotari, S., Tolan, M.

Publikováno v: Sahle, C.J.; Sternemann, C.; Sternemann, H.; Tse, J.S.; Gordon, R.A.; Desgreniers, S.; Maekawa, S.; Yamanaka, S.; Lehmkuehler, F.; Wieland, D.C.F.; Mende, K.; Huotari, S.; Tolan, M.: The Ba 4d-4f giant dipole resonance in complex Ba/Si compounds. In: Journal of Physics B. Vol. 47 (2014) 4, 045102. (DOI: 10.1088/0953-4075/47/4/045102)

The shape of the Ba 4d–4f giant dipole resonance is studied for Ba atoms embedded inside complex Si networks covering structures consisting of Si nanocages and nanotubes, i.e. the clathrate Ba8Si46, the complex compound BaSi6, and the semiconductin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______2110::7d627b2459f4fdea03afe39e343cc6e5
http://www.hzg.de/imperia/md/content/gkss/zentrale_einrichtungen/bibliothek/journals/2014/sahle_31547.pdf

X-ray Raman scattering studies of Si based compounds under extreme conditions

Autor: Sahle, C., Sternemann, C., Tse, J., Wilke, M., Schmidt, C., Nyrow, A., Dubrail, J., Giordano, V., Simonelli, L., Desgreniers, S., Tolan, M.

Publikováno v: 7th International Conference on Inelastic X-ray Scattering-IXS 2010 (Grenoble, France 2010)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::5178d1c11f777acfb5dae9157f6ff09c
http://gfzpublic.gfz-potsdam.de/pubman/item/escidoc:242290