Zobrazeno 1 - 10
of 354
pro vyhledávání: '"Rotundu A"'
Autor:
Guo, Qinda, Xu, Ke-Jun, Berntsen, Magnus H., Grubišić-Čabo, Antonija, Dendzik, Maciej, Balasubramanian, Thiagarajan, Polley, Craig, Chen, Su-Di, He, Junfeng, He, Yu, Rotundu, Costel R., Lee, Young S., Hashimoto, Makoto, Lu, Dong-Hui, Devereaux, Thomas P., Lee, Dung-Hai, Shen, Zhi-Xun, Tjernberg, Oscar
Spin- and charge-lattice interactions are potential key factors in the microscopic mechanism of high-temperature superconductivity in cuprates. Although both interactions can dramatically shape the low-energy electronic structure, their phenomenologi
Externí odkaz:
http://arxiv.org/abs/2408.01685
Autor:
Gauthier, Alexandre, Sobota, Jonathan A., Gauthier, Nicolas, Rotundu, Costel R., Shen, Zhi-Xun, Kirchmann, Patrick S.
Publikováno v:
Phys. Rev. Materials 8, 054201 (2024)
Bi$_2$Se$_3$ has been the focus of intense interest over the past decade due to its topological properties. Bi surfaces are known to form on Bi$_2$Se$_3$ upon exposure to atmosphere, but their electronic structure has not been investigated. We report
Externí odkaz:
http://arxiv.org/abs/2404.17203
Autor:
Shan, Jun-Yi, Curtis, Jonathan B., Guo, Mingyao, Roh, Chang Jae, Rotundu, C. R., Lee, Young S., Narang, Prineha, Noh, Tae Won, Demler, Eugene, Hsieh, D.
Uncovering pathways to optically drive magnetic order-disorder transitions on ultrashort timescales can lead to the realization of novel out-of-equilibrium quantum phenomena. A long-sought pathway is to directly excite a highly non-thermal energy-mom
Externí odkaz:
http://arxiv.org/abs/2402.09521
Autor:
Xu, Ke-Jun, He, Junfeng, Chen, Su-Di, He, Yu, Abadi, Sebastien N., Rotundu, Costel. R., Lee, Young S., Lu, Dong-Hui, Guo, Qinda, Tjernberg, Oscar, Devereaux, Thomas P., Lee, Dung-Hai, Hashimoto, Makoto, Shen, Zhi-Xun
Publikováno v:
Science 385, 796-800 (2024)
In the underdoped n-type cuprate Nd2-xCexCuO4, long-ranged antiferromagnetic order reconstructs the Fermi surface, resulting in a putative antiferromagnetic metal with small pockets. Using angle-resolved photoemission spectroscopy, we observe an anom
Externí odkaz:
http://arxiv.org/abs/2309.10208
Autor:
Xu, Ke-Jun, Guo, Qinda, Hashimoto, Makoto, Li, Zi-Xiang, Chen, Su-Di, He, Junfeng, He, Yu, Li, Cong, Berntsen, Magnus H., Rotundu, Costel R., Lee, Young S., Devereaux, Thomas P., Rydh, Andreas, Lu, Dong-Hui, Lee, Dung-Hai, Tjernberg, Oscar, Shen, Zhi-Xun
In contrast to hole-doped cuprates, electron-doped cuprates consistently exhibit strong antiferromagnetic correlations with a commensurate ({\pi}, {\pi}) ordering wave vector, leading to the prevalent belief that antiferromagnetic spin fluctuations m
Externí odkaz:
http://arxiv.org/abs/2308.05313
Autor:
Huang, Yijing, Querales-Flores, José D., Teitelbaum, Samuel W., Cao, Jiang, Henighan, Thomas, Liu, Hanzhe, Jiang, Mason, De la Peña, Gilberto, Krapivin, Viktor, Haber, Johann, Sato, Takahiro, Chollet, Matthieu, Zhu, Diling, Katayama, Tetsuo, Power, Robert, Allen, Meabh, Rotundu, Costel R., Bailey, Trevor P., Uher, Ctirad, Trigo, Mariano, Kirchmann, Patrick S., Murray, Éamonn D., Shen, Zhi-Xun, Savic, Ivana, Fahy, Stephen, Sobota, Jonathan A., Reis, David A.
Quantifying electron-phonon interactions for the surface states of topological materials can provide key insights into surface-state transport, topological superconductivity, and potentially how to manipulate the surface state using a structural degr
Externí odkaz:
http://arxiv.org/abs/2307.12132
Autor:
Sobota, Jonathan A., Teitelbaum, Samuel W., Huang, Yijing, Querales-Flores, José D., Power, Robert, Allen, Meabh, Rotundu, Costel R., Bailey, Trevor P., Uher, Ctirad, Henighan, Tom, Jiang, Mason, Zhu, Diling, Chollet, Matthieu, Sato, Takahiro, Trigo, Mariano, Murray, Éamonn D., Savić, Ivana, Kirchmann, Patrick S., Fahy, Stephen, Reis, David. A., Shen, Zhi-Xun
We investigate coupled electron-lattice dynamics in the topological insulator Bi2Te3 with time-resolved photoemission and time-resolved x-ray diffraction. It is well established that coherent phonons can be launched by optical excitation, but selecti
Externí odkaz:
http://arxiv.org/abs/2212.09892
Publikováno v:
Phys. Rev. B 106, L140403 (2022)
We report magnetic optical second-harmonic generation (SHG) polarimetry and imaging on Sr$_2$Cu$_3$O$_4$Cl$_2$, which allows direct visualization of the mesoscopic antiferromagnetic (AFM) structure of a parent cuprate. Temperature- and magnetic-field
Externí odkaz:
http://arxiv.org/abs/2210.04327
Enhanced charge density wave with mobile superconducting vortices in La$_{1.885}$Sr$_{0.115}$CuO$_4$
Autor:
Wen, J. -J., He, W., Jang, H., Nojiri, H., Matsuzawa, S., Song, S., Chollet, M., Zhu, D., Liu, Y. -J., Fujita, M., Jiang, J. M., Rotundu, C. R., Kao, C. -C., Jiang, H. -C., Lee, J. -S., Lee, Y. S.
Superconductivity in the cuprates is found to be intertwined with charge and spin density waves. Determining the interactions between the different types of order is crucial for understanding these important materials. Here, we elucidate the role of
Externí odkaz:
http://arxiv.org/abs/2111.06422
Autor:
Baykusheva, Denitsa, Chacón, Alexis, Lu, Jian, Bailey, Trevor P., Sobota, Jonathan A., Soifer, Hadas, Kirchmann, Patrick S., Rotundu, Costel R., Uher, Ctirad, Heinz, Tony F., Reis, David A., Ghimire, Shambhu
Publikováno v:
Nano Lett. 2021, 21, 21, 8970-8978
We report the observation of a novel nonlinear optical response from the prototypical three-dimensional topological insulator Bi$_2$Se$_3$ through the process of high-order harmonic generation. We find that the generation efficiency increases as the
Externí odkaz:
http://arxiv.org/abs/2109.15291