Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Alexander Steppke"'
Autor:
Fabian Jerzembeck, Henrik S. Røising, Alexander Steppke, Helge Rosner, Dmitry A. Sokolov, Naoki Kikugawa, Thomas Scaffidi, Steven H. Simon, Andrew P. Mackenzie, Clifford W. Hicks
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-11 (2022)
In the superconductor Sr2RuO4, in-plane strain is known to enhance both the superconducting transition temperature Tc and upper critical field Hc2, but the effect of out-of-plane strain has not been studied. Here, the authors find that Hc2 is enhance
Externí odkaz:
https://doaj.org/article/3755b0bde6a642cdb60abe0cefd63921
Autor:
Alexander Steppke, Sandra Hamann, Markus König, Andrew P Mackenzie, Kristin Kliemt, Cornelius Krellner, Marvin Kopp, Martin Lonsky, Jens Müller, Lev V Levitin, John Saunders, Manuel Brando
Publikováno v:
New Journal of Physics, Vol 24, Iss 12, p 123033 (2022)
The discovery of superconductivity in the quantum critical Kondo-lattice system YbRh _2 Si _2 at an extremely low temperature of 2 mK has inspired efforts to perform high-resolution electrical resistivity measurements down to this temperature range i
Externí odkaz:
https://doaj.org/article/6d2aa0ede47743e9bd083b522ea2a4de
Autor:
Jack M. Bartlett, Alexander Steppke, Suguru Hosoi, Hilary Noad, Joonbum Park, Carsten Timm, Takasada Shibauchi, Andrew P. Mackenzie, Clifford W. Hicks
Publikováno v:
Physical Review X, Vol 11, Iss 2, p 021038 (2021)
The mechanism behind the nematicity of FeSe is not known. Through elastoresitivity measurements it has been shown to be an electronic instability. However, thus far measurements have extended only to small strains, where the response is linear. Here,
Externí odkaz:
https://doaj.org/article/db643639dc654b8bbc6418a7e7e6c066
Autor:
Fabian Jerzembeck, Alexander Steppke, Andrej Pustogow, Yongkang Luo, Aaron Chronister, Dmitry A. Sokolov, Naoki Kikugawa, You-Sheng Li, Michael Nicklas, Stuart E. Brown, Andrew P. Mackenzie, Clifford W. Hicks
Publikováno v:
Physical Review B. 107
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5ed8f38ab16612863e84708406f91ce
https://doi.org/10.1103/physrevb.107.064509
https://doi.org/10.1103/physrevb.107.064509
Autor:
Hilary Noad, Jack M. Bartlett, Joonbum Park, Alexander Steppke, Takasada Shibauchi, Suguru Hosoi, Andrew P. Mackenzie, Carsten Timm, Clifford W. Hicks
Publikováno v:
Physical Review X, Vol 11, Iss 2, p 021038 (2021)
The mechanism behind the nematicity of FeSe is not known. Through elastoresitivity measurements it has been shown to be an electronic instability. However, so far measurements have extended only to small strains, where the response is linear. Here, w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a4388f524ea40f437a723a69d77e9ed0
https://doi.org/10.1103/physrevx.11.021038
https://doi.org/10.1103/physrevx.11.021038
Autor:
Tian Shang, Masafumi Horio, Alexander Steppke, Jaewon Choi, Dominik Biscette, Veronica Granata, Y. Xu, Jasmin Mueller, Rosalba Fittipaldi, L. Das, Xiaofu Zhang, Johan Chang, S. Jöhr, Karin von Arx, Antonio Vecchione, Andreas Schilling
Ambipolar transport is a commonly occurring theme in semimetals and semiconductors. Here we present an analytical formulation of the conductivity for a two-band system. Electron and hole carrier densities and their respective conductivities are mappe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ee8a202616086550d7422e358b17e50
Autor:
Andrew P. Mackenzie, Alexander Steppke, Hilary Noad, Jack M. Bartlett, Alexander L. Stern, Markus König, Suguru Hosoi, Mark E. Barber, Clifford W. Hicks, Joonbum Park, Takasada Shibauchi
Response to uniaxial stress has become a major probe of electronic materials. Tuneable uniaxial stress may be applied using piezoelectric actuators, and so far two methods have been developed to couple samples to actuators. In one, actuators apply fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::93d24df14b91ed38c2033325a5259faf
Autor:
Roman Movshovich, Monika Gamza, Matthew B. Stone, Neil Harrison, Alexander A. Tsirlin, Yoshimitsu Kohama, Chao Dong, Adam A. Aczel, Manuel Brando, Helge Rosner, Franziska Weickert, Alexander Steppke, V. Ovidiu Garlea, A. Demuer
Publikováno v:
Physical Review X
We present inelastic neutron scattering data on the quantum paramagnet AgVOAsO4 that establish the system is a S=1/2 alternating spin chain compound and provide a direct measurement of the spin gap. We also present experimental evidence for two diffe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec4e14d442ae24671218d56e8379b884
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
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
Autor:
Sandra Hamann, Saman Ghannadzadeh, Sara Karbassi, Manuel Brando, Andrew P. Mackenzie, Heike Pfau, D. L. Sun, Alexander Steppke, R. Daou, Sven Friedemann, Kristin Kliemt, Markus König, R. Küchler, Cornelius Krellner
Publikováno v:
Physical Review Letters. 119
A ferromagnetic quantum critical point is thought not to exist in two- and three-dimensional metallic systems yet is realized in the Kondo lattice compound ${\mathrm{YbNi}}_{4}(\mathrm{P},\mathrm{As}{)}_{2}$, possibly due to its one-dimensionality. I
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dd6a17dd82bbd33e3810622cab03c0a4
https://doi.org/10.1103/physrevlett.119.126402
https://doi.org/10.1103/physrevlett.119.126402