Zobrazeno 1 - 10
of 675
pro vyhledávání: '"Hwang, H. Y."'
Autor:
Rossi, M., Lu, H., Lee, K., Goodge, B. H., Choi, J., Osada, M., Lee, Y., Li, D., Wang, B. Y., Jost, D., Agrestini, S., Garcia-Fernandez, M., Shen, Z. X., Zhou, Ke-Jin, Been, E., Moritz, B., Kourkoutis, L. F., Devereaux, T. P., Hwang, H. Y., Lee, W. S.
We conducted a comparative study of the rare-earth infinite-layer nickelates films, RNiO2 (R = La, Pr, and Nd) using resonant inelastic X-ray scattering (RIXS). We found that the gross features of the orbital configurations are essentially the same,
Externí odkaz:
http://arxiv.org/abs/2312.16444
Autor:
Lu, H., Rossi, M., Nag, A., Osada, M., Li, D. F., Lee, K., Wang, B. Y., Garcia-Fernandez, M., Agrestini, S., Shen, Z. X., Been, E. M., Moritz, B., Devereaux, T. P., Zaanen, J., Hwang, H. Y., Zhou, Ke-Jin, Lee, W. S.
Publikováno v:
Science 373, 213-216 (2021)
The discovery of superconductivity in infinite-layer nickelates brings us tantalizingly close to a new material class that mirrors the cuprate superconductors. Here, we report on magnetic excitations in these nickelates, measured using resonant inela
Externí odkaz:
http://arxiv.org/abs/2105.11300
Autor:
Bisht, R. S., Mograbi, M., Rout, P. K., Tuvia, G., Dagan, Y., Yoon, Hyeok, Swartz, A. G., Hwang, H. Y., Li, L. L., Pentcheva, R.
In polar-oxide interfaces, a certain number of monolayers (ML) is needed for conductivity to appear. This threshold for conductivity is explained by accumulating sufficient electric potential to initiate charge transfer to the interface. Here we stud
Externí odkaz:
http://arxiv.org/abs/2102.07239
Autor:
Rossi, M., Lu, H., Nag, A., Li, D., Osada, M., Lee, K., Wang, B. Y., Agrestini, S., Garcia-Fernandez, M., Chuang, Y. -D., Shen, Z. X., Hwang, H. Y., Moritz, B., Zhou, Ke-Jin, Devereaux, T. P., Lee, W. S.
The recent discovery of superconductivity in Nd$_{1-x}$Sr$_{x}$NiO$_2$ has drawn significant attention in the field. A key open question regards the evolution of the electronic structure with respect to hole doping. Here, we exploit x-ray absorption
Externí odkaz:
http://arxiv.org/abs/2011.00595
Autor:
Hepting, M., Li, D., Jia, C. J., Lu, H., Paris, E., Tseng, Y., Feng, X., Osada, M., Been, E., Hikita, Y., Chuang, Y. -D., Hussain, Z., Zhou, K. J., Nag, A., Garcia-Fernandez, M., Rossi, M., Huang, H. Y., Huang, D. J., Shen, Z. X., Schmitt, T., Hwang, H. Y., Moritz, B., Zaanen, J., Devereaux, T. P., Lee, W. S.
Publikováno v:
Nature Materials 19, 381 (2020)
The search for oxide materials with physical properties similar to the cuprate high Tc superconductors, but based on alternative transition metals such as nickel, has grown and evolved over time. The recent discovery of superconductivity in doped inf
Externí odkaz:
http://arxiv.org/abs/1909.02678
Akademický článek
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Autor:
Chen, F., Zhu, Y., Liu, S., Qi, Y., Hwang, H. Y., Brandt, N. C., Lu, J., Quirin, F., Enquist, H., Zalden, P., Hu, T., Goodfellow, J., Sher, M. -J., Hoffmann, M. C., Zhu, D., Lemke, H., Glownia, J., Chollet, M., Damodaran, A. R., Park, J., Cai, Z., Jung, I. W., Highland, M. J., Walko, D. A., Freeland, J. W., Evans, P. G., Vailionis, A., Larsson, J., Nelson, K. A., Rappe, A. M., Sokolowski-Tinten, K., Martin, L. W., Wen, H., Lindenberg, A. M.
Publikováno v:
Phys. Rev. B 94, 180104 (2016)
The dynamical processes associated with electric field manipulation of the polarization in a ferroelectric remain largely unknown but fundamentally determine the speed and functionality of ferroelectric materials and devices. Here we apply sub-picose
Externí odkaz:
http://arxiv.org/abs/1608.08470
Autor:
Gray, A. X., Hoffmann, M. C., Jeong, J., Aetukuri, N. P., Zhu, D., Hwang, H. Y., Brandt, N. C., Wen, H., Sternbach, A. J., Bonetti, S., Reid, A. H., Kukreja, R., Graves, C., Wang, T., Granitzka, P., Chen, Z., Higley, D. J., Chase, T., Jal, E., Abreu, E., Liu, M. K., Weng, T. -C., Sokaras, D., Nordlund, D., Chollet, M., Lemke, H., Glownia, J., Trigo, M., Zhu, Y., Ohldag, H., Freeland, J. W., Samant, M. G., Berakdar, J., Averitt, R. D., Nelson, K. A., Parkin, S. S. P., Dürr, H. A.
Publikováno v:
Phys. Rev. B 98, 045104 (2018)
Vanadium dioxide, an archetypal correlated-electron material, undergoes an insulator-metal transition near room temperature that exhibits electron-correlation-driven and structurally-driven physics. Using ultrafast optical spectroscopy and x-ray scat
Externí odkaz:
http://arxiv.org/abs/1601.07490
Autor:
Tsuyama, T., Chakraverty, S., Pontius, N., Schussler-Langeheine, C., Hwang, H. Y., Tokura, Y., Wadati, H.
Publikováno v:
Phys. Rev. Lett. 116, 256402 (2016)
We studied the electronic and magnetic dynamics of ferromagnetic insulating BaFeO3 thin films by using pump-probe time-resolved resonant x-ray reflectivity at the Fe 2p edge. By changing the excitation density, we found two distinctly different types
Externí odkaz:
http://arxiv.org/abs/1511.03365
Autor:
Tsuyama, T., Matsuda, T., Chakraverty, S., Okamoto, J., Ikenaga, E., Tanaka, A., Mizokawa, T., Hwang, H. Y., Tokura, Y., Wadati, H.
Publikováno v:
Phys. Rev. B 91, 115101 (2015)
We investigated the electronic and magnetic properties of fully oxidized BaFeO3 thin films, which show ferromagnetic-insulating properties with cubic crystal structure, by hard x-ray photoemission spectroscopy (HAXPES), x-ray absorption spectroscopy
Externí odkaz:
http://arxiv.org/abs/1409.5538