Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Heike Pfau"'
Publikováno v:
Frontiers in Electronic Materials, Vol 4 (2024)
Uniaxial stress has proven to be a powerful experimental tuning parameter for effectively controlling lattice, charge, orbital, and spin degrees of freedom in quantum materials. In addition, its ability to manipulate the symmetry of materials has gar
Externí odkaz:
https://doaj.org/article/a237690edbf2410cb29b2baf18ab207f
Autor:
Nicolas Gauthier, Jonathan A. Sobota, Heike Pfau, Alexandre Gauthier, Hadas Soifer, Maja D. Bachmann, Ian R. Fisher, Zhi-Xun Shen, Patrick S. Kirchmann
Publikováno v:
The Review of scientific instruments. 92(12)
In photoelectron spectroscopy, the measured electron momentum range is intrinsically related to the excitation photon energy. Low photon energies $
11 pages, 7 figures
11 pages, 7 figures
Autor:
Z.-X. Shen, Sudi Chen, Nicolas Gauthier, J. C. Palmstrom, Makoto Hashimoto, Heike Pfau, Costel R. Rotundu, Sung-Kwan Mo, Ian R. Fisher, D. H. Lu
Publikováno v:
Physical Review B. 103
Author(s): Pfau, H; Chen, SD; Hashimoto, M; Gauthier, N; Rotundu, CR; Palmstrom, JC; Fisher, IR; Mo, SK; Shen, ZX; Lu, D | Abstract: The hallmark of nematic order in iron-based superconductors is a resistivity anisotropy but it is unclear to which ex
Autor:
Jonathan Sobota, Zhi-Xun Shen, Nicolas Gauthier, Makoto Hashimoto, Patrick S. Kirchmann, Heike Pfau, D. H. Lu, Eric D. Bauer, Filip Ronning
Quantum well states appear in metallic thin films due to the confinement of the wave function by the film interfaces. Using angle-resolved photoemission spectroscopy, we unexpectedly observe quantum well states in fractured single crystals of CeCoIn$
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ae32c0d1b849d0e8ab3178de4dd3bf1
http://arxiv.org/abs/2006.16301
http://arxiv.org/abs/2006.16301
Autor:
Johanna C. Palmstrom, Zhi-Xun Shen, G.-Y. Chen, Haidan Wen, Alexandre Gauthier, Ian R. Fisher, Hadas Soifer, Heike Pfau, Costel R. Rotundu, Jonathan Sobota, Patrick S. Kirchmann
Publikováno v:
Physical Review Materials. 4
We determine the work functions of the iron arsenic compounds $A{\mathrm{Fe}}_{2}{\mathrm{As}}_{2}$ ($A=\mathrm{Ca},\mathrm{Ba},\mathrm{Cs}$) using photoemission spectroscopy to be 2.7 eV for ${\mathrm{CaFe}}_{2}{\mathrm{As}}_{2}$, 1.8 eV for ${\math
Autor:
D. H. Lu, Makoto Hashimoto, Zhi-Xun Shen, P. Massat, Brian Moritz, Ian R. Fisher, E. W. Rosenberg, Heike Pfau
Publikováno v:
Physical Review B. 99
We studied the electronic structure of the heavy-fermion compound $\mathrm{Yb}{({\mathrm{Ru}}_{1\ensuremath{-}x}{\mathrm{Rh}}_{x})}_{2}{\mathrm{Ge}}_{2}$ with $x=0$ and nominally $x=0.125$ using ARPES and LDA calculations. We find a valence band stru
Autor:
Joshua Straquadine, Johanna C. Palmstrom, Alexander T. Hristov, Zhi-Xun Shen, Pengcheng Dai, Robert J. Birgeneau, Makoto Hashimoto, Ian R. Fisher, Tong Chen, Donghui Lu, Ming Yi, Sudi Chen, Heike Pfau, Costel R. Rotundu
Publikováno v:
Physical review letters, vol 123, iss 6
The momentum dependence of the nematic order parameter is an important ingredient in the microscopic description of iron-based high-temperature superconductors. While recent reports on FeSe indicate that the nematic order parameter changes sign betwe
Autor:
Heike Pfau, Costel R. Rotundu, Ian R. Fisher, Johanna C. Palmstrom, Makoto Hashimoto, Alexander F. Kemper, D. H. Lu, Z.-X. Shen, Sudi Chen
Publikováno v:
Physical Review B. 99
The superconducting dome of most iron-based superconductors emerges from a phase with nematic and magnetic ordering. However, the multiband and multiorbital nature of iron-based superconductors as well as twinning effects pose challenges to fully cha
Autor:
Sung-Kwan Mo, Patrick S. Kirchmann, Heike Pfau, D. Leuenberger, Zhi-Xun Shen, Shuolong Yang, Jonathan Sobota, Zachary Fisk, Dae-Jeong Kim
Publikováno v:
Physical Review B. 97
We report an optically induced reduction of the $f\text{\ensuremath{-}}d$ hybridization in the prototypical heavy-fermion compound ${\mathrm{YbRh}}_{2}{\mathrm{Si}}_{2}$. We use femtosecond time- and angle-resolved photoemission spectroscopy to monit
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