Zobrazeno 1 - 10
of 307
pro vyhledávání: '"Keimer, Bernhard"'
Autor:
Yang, Chao, Ortiz, Roberto A., Wang, Hongguang, Sigle, Wilfried, Anggara, Kelvin, Benckiser, Eva, Keimer, Bernhard, van Aken, Peter A.
Anion doping offers immense potential for tailoring material properties, but achieving precise control over anion incorporation remains a challenge due to complex synthesis processes and limitations in local dopant detection. Here, we investigate the
Externí odkaz:
http://arxiv.org/abs/2408.14157
Autor:
Wu, Yu-Mi, Puphal, Pascal, Isobe, Masahiko, Keimer, Bernhard, Hepting, Matthias, Suyolcu, Y. Eren, van Aken, Peter A.
Infinite-layer nickelates stand as a promising frontier in the exploration of unconventional superconductivity. Their synthesis through topotactic oxygen reduction from the parent perovskite phase remains a complex and elusive process. This study del
Externí odkaz:
http://arxiv.org/abs/2407.13886
Autor:
Fava, Sebastian, De Vecchi, Giovanni, Jotzu, Gregor, Buzzi, Michele, Gebert, Thomas, Liu, Yiran, Keimer, Bernhard, Cavalleri, Andrea
Coherent optical driving in quantum solids is emerging as a new research frontier, with many demonstrations of exotic non-equilibrium quantum phases. These are based on engineered band structures, and on stimulated nonlinear interactions between driv
Externí odkaz:
http://arxiv.org/abs/2405.00848
Autor:
Marino, Andrea, Christovam, Denise S., Takegami, Daisuke, Falke, Johannes, Carvalho, Miguel M. F., Okauchi, Takaki, Chang, Chun-Fu, Altendorf, Simone G., Amorese, Andrea, Sundermann, Martin, Gloskovskii, Andrei, Gretarsson, Hlynur, Keimer, Bernhard, Andreev, Alexandr V., Havela, Ladislav, Leithe-Jasper, Andreas, Severing, Andrea, Kunes, Jan, Tjeng, Liu Hao, Hariki, Atsushi
Publikováno v:
Phys. Rev. Research 6, 033068 (2024), Editors' Suggestions
A procedure for quantifying the U $5f$ electrons' covalence and degree of localization in U intermetallic compounds is presented. To this end, bulk sensitive hard and soft x-ray photoelectron spectroscopy were utilized in combination with density-fun
Externí odkaz:
http://arxiv.org/abs/2404.06266
Autor:
Abadi, Sebastien N., Xu, Ke-Jun, Lomeli, Eder G., Puphal, Pascal, Isobe, Masahiko, Zhong, Yong, Fedorov, Alexei V., Mo, Sung-Kwan, Hashimoto, Makoto, Lu, Dong-Hui, Moritz, Brian, Keimer, Bernhard, Devereaux, Thomas P., Hepting, Matthias, Shen, Zhi-Xun
Recent studies of La$_3$Ni$_2$O$_7$ have identified a bilayer (2222) structure and an unexpected alternating monolayer-trilayer (1313) structure, both of which feature signatures of superconductivity near 80 K under high pressures. Using angle-resolv
Externí odkaz:
http://arxiv.org/abs/2402.07143
Autor:
Little, Larissa B., Coulter, Jennifer, Kang, Ruizhe, Zeljkovic, Ilija, Huang, Dennis, Song, Can-Li, Loew, Toshinao, Chia, Han-Jong, Hoffman, Jason D., Markert, John T., Keimer, Bernhard, Kozinsky, Boris, Hoffman, Jennifer E.
YBa$_2$Cu$_3$O$_{7-\delta}$ (YBCO) has favorable macroscopic superconducting properties of $T_\mathrm{c}$ up to 93 K and $H_{c2}$ up to 150 T. However, its nanoscale electronic structure remains mysterious because bulk-like electronic properties are
Externí odkaz:
http://arxiv.org/abs/2402.03238
Autor:
Puphal, Pascal, Reiss, Pascal, Enderlein, Niklas, Wu, Yu-Mi, Khaliullin, Giniyat, Sundaramurthy, Vignesh, Priessnitz, Tim, Knauft, Manuel, Richter, Lea, Isobe, Masahiko, van Aken, Peter A., Takagi, Hidenori, Keimer, Bernhard, Suyolcu, Y. Eren, Wehinger, Björn, Hansmann, Philipp, Hepting, Matthias
The discovery of high-temperature superconductivity in La$_3$Ni$_2$O$_7$ at pressures above 14 GPa has spurred extensive research efforts. Yet, fundamental aspects of the superconducting phase, including the possibility of a filamentary character, ar
Externí odkaz:
http://arxiv.org/abs/2312.07341
Autor:
Oudah, Mohamed, Kung, Hsiang-Hsi, Sahu, Samikshya, Heinsdorf, Niclas, Schulz, Armin, Philippi, Kai, Sanchez, Marta-Villa De Toro, Cai, Yipeng, Kojima, Kenji, Schnyder, Andreas P., Takagi, Hidenori, Keimer, Bernhard, Bonn, Doug A., Hallas, Alannah M.
We present an exploration of the effect of electron-phonon coupling and broken inversion symmetry on the electronic and thermal properties of the semimetal LaRhGe$_3$. Our transport measurements reveal evidence for electron-hole compensation at low t
Externí odkaz:
http://arxiv.org/abs/2311.11402
Autor:
Andriushin, Nikita D., Grumbach, Justus, Kim, Jung-Hwa, Reehuis, Manfred, Tymoshenko, Yuliia V., Onykiienko, Yevhen A., Jain, Anil, MacFarlane, W. Andrew, Maljuk, Andrey, Granovsky, Sergey, Hoser, Andreas, Pomjakushin, Vladimir, Ollivier, Jacques, Doerr, Mathias, Keimer, Bernhard, Inosov, Dmytro S., Peets, Darren C.
Publikováno v:
Phys. Rev. B 108, 174420 (2023)
The cubic perovskite SrFeO$_3$ was recently reported to host hedgehog- and skyrmion-lattice phases in a highly symmetric crystal structure which does not support the Dzyaloshinskii-Moriya interactions commonly invoked to explain such magnetic order.
Externí odkaz:
http://arxiv.org/abs/2309.15594
Autor:
Wang, Lichen, Liu, Huimei, Zimmermann, Valentin, Yogi, Arvind Kumar, Isobe, Masahiko, Minola, Matteo, Hepting, Matthias, Khaliullin, Giniyat, Keimer, Bernhard
Publikováno v:
Phys. Rev. Lett. 132, 116502 (2024)
Using Raman spectroscopy to study the correlated 4$d$-electron metal Sr$_2$RhO$_4$, we observe pronounced excitations at 220 meV and 240 meV with $A_\mathrm{1g}$ and $B_\mathrm{1g}$ symmetries, respectively. We identify them as transitions between th
Externí odkaz:
http://arxiv.org/abs/2309.15299