The disordered and correlated insulator Bi2CrAl3O9

Autor: Jack Simonson, A. Geritano, J. C. Umana, Y. Janssen, M. C. Aronson, Lucia Steinke, Alicia Baccarella

Publikováno v: Physical Review B. 100

The $3d$ transition metal insulator ${\mathrm{Bi}}_{2}{\mathrm{CrAl}}_{3}{\mathrm{O}}_{9}$ forms with a quasi-one-dimensional structure characterized by linear chains of edge-sharing, Cr-and Al-centered, distorted octahedra. The UV/Vis spectrum of hi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::10f90dc2f918926819767f9a21bd8505
https://doi.org/10.1103/physrevb.100.104425

Interplay between unconventional superconductivity and heavy-fermion quantum criticality: CeCu 2 Si 2 versus YbRh 2 Si 2

Autor: Sven Friedemann, Huiqiu Yuan, G. M. Pang, Steffen Wirth, Emilian M. Nica, Stefan Kirchner, Tatsuo C. Kobayashi, Frank Steglich, Alexander Steppke, Rong Yu, Stefan Lausberg, Qimiao Si, U. Stockert, Cornelius Krellner, Lin Jiao, H. A. Vieyra, Kenji Ishida, Oliver Stockert, Manuel Brando, Michael Smidman, Heike Pfau, J. Arndt, Erwin Schuberth, M. Tippmann, K. Fujiwara, Lucia Steinke, Shunsaku Kitagawa, Peijie Sun

Publikováno v: Philosophical Magazine
Smidman, M, Stockert, O, Arndt, J, Pang, G M, Jiao, L, Yuan, H Q, Vieyra, H A, Kitagawa, S, Ishida, K, Fujiwara, K, Kobayashi, T C, Schuberth, E, Tippmann, M, Steinke, L, Lausberg, S, Steppke, A, Brando, M, Pfau, H, Stockert, U, Sun, P, Friedemann, S, Wirth, S, Krellner, C, Kirchner, S, Nica, E M, Yu, R, Si, Q & Steglich, F 2018, ' Interplay between unconventional superconductivity and heavy-fermion quantum criticality : CeCu 2 Si 2 versus YbRh 2 Si 2 ', Philosophical Magazine, vol. 98, no. 32, pp. 2930-2963 . https://doi.org/10.1080/14786435.2018.1511070

In this paper the low-temperature properties of two isostructural canonical heavy-fermion compounds are contrasted with regards to the interplay between antiferromagnetic (AF) quantum criticality and superconductivity. For CeCu$_2$Si$_2$, fully-gappe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a39cbc938f42ec17163dad0a073fcbd7

Thermodynamic evidence for valley-dependent density of states in bulk bismuth

Autor: Ramzy Daou, Frank Steglich, Robert Kuechler, Lucia Steinke, Manuel Brando, Kamran Behnia

Publikováno v: Nature Materials. 13:461-465

Electron-like carriers in bismuth are described by the Dirac Hamiltonian, with a band mass becoming a thousandth of the bare electron mass along one crystalline axis. The existence of three anisotropic valleys offers electrons an additional degree of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c615e7f21cdd72564c8427ba22aff9df
https://doi.org/10.1038/nmat3909

Unconventional large linear magnetoresistance in Cu2−xTe

Autor: Lucia Steinke, Joseph H. Ross, Ali A. Sirusi, Ctirad Uher, M. C. Aronson, Alexander Page

Publikováno v: AIP Advances, Vol 8, Iss 5, Pp 055135-055135-8 (2018)

We report a large linear magnetoresistance in Cu2−xTe, reaching Δρ/ρ(0) = 250% at 2 K in a 9 T field, for samples with x = 0.13 to 0.22. These results are comparable to those for Ag2X materials, though for Cu2−xTe the carrier densities are con

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb226b2807f6a8df3ed373095256520e
https://doaj.org/article/cc0fabc2899b4d92b0b5d66b7030cab5

Sharp quantum Hall edges: Experimental realizations of edge states without incompressible strips

Autor: Max Bichler, Dieter Schuh, Michael Huber, Matthew Grayson, Lucia Steinke, Gerhard Abstreiter

Publikováno v: physica status solidi (b). 245:356-365

Experimental results of sharp edge potentials in the quantum Hall (QH) regime of a two-dimensional electron system are presented. First the general QH edge state picture is reviewed, including recent theory which explains the importance of incompress

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7bb87d19432091644db9cf38fdf9667f
https://doi.org/10.1002/pssb.200743410