Zobrazeno 1 - 10
of 115
pro vyhledávání: '"A C Komarek"'
Autor:
R German, B Zimmer, T C Koethe, A Barinov, A C Komarek, M Braden, F Parmigiani, P H M van Loosdrecht
Publikováno v:
Materials Research Express, Vol 5, Iss 12, p 126101 (2018)
We have performed optical microscopy, micro-photoelectron spectroscopy, and micro-Raman scattering measurements on ${{\rm{Y}}}_{0.63}$ ${\mathrm{Ca}}_{0.37}$ TiO _3 single crystals in order to clarify the interplay between the microstructure and the
Externí odkaz:
https://doaj.org/article/3e44fe79b722476e93d6f52715770fb0
Autor:
Daqin Guan, Gihun Ryu, Zhiwei Hu, Jing Zhou, Chung-Li Dong, Yu-Cheng Huang, Kaifeng Zhang, Yijun Zhong, Alexander C. Komarek, Ming Zhu, Xinhao Wu, Chih-Wen Pao, Chung-Kai Chang, Hong-Ji Lin, Chien-Te Chen, Wei Zhou, Zongping Shao
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-10 (2020)
Water oxidation catalysis may provide the electrons needed for sustainable fuel production, but catalysts often degrade under working conditions. Here, authors introduce soluble species into perovskites to exert positive ion leaching effects for enha
Externí odkaz:
https://doaj.org/article/07306f1b8f23491898c0d156921103a7
Autor:
Brett Leedahl, Martin Sundermann, Andrea Amorese, Andrea Severing, Hlynur Gretarsson, Lunyong Zhang, Alexander C. Komarek, Antoine Maignan, Maurits W. Haverkort, Liu Hao Tjeng
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-7 (2019)
Ca$${}_{3}$$ 3 Co$${}_{2}$$ 2 O$${}_{6}$$ 6 has an unconventional magnetic structure displaying quantum tunnelling phenomena in its magnetization. Here, the authors use s-core-level non-resonant inelastic X-ray scattering to image the atomic Co 3d or
Externí odkaz:
https://doaj.org/article/b3b9325e849e4de6b584579c78a44130
Autor:
H. Guo, L. Zhao, M. Baenitz, X. Fabrèges, A. Gukasov, A. Melendez Sans, D. I. Khomskii, L. H. Tjeng, A. C. Komarek
Publikováno v:
Physical Review Research, Vol 3, Iss 3, p L032037 (2021)
Despite the absence of an apparent triangular pattern in the crystal structure, we observe unusually well-pronounced 1/3 magnetization plateaus in the quasi-one-dimensional Ising spin chain compound CoGeO_{3} which belongs to the class of pyroxene mi
Externí odkaz:
https://doaj.org/article/c3fb8a2cf8bb44e88427e9eac80c5927
Autor:
Daisuke Takegami, Laurent Nicolaï, Yuki Utsumi, Anna Meléndez-Sans, Daria A. Balatsky, Cariad-A. Knight, Connor Dalton, Shao-Lun Huang, Chi-Sheng Chen, Li Zhao, Alexander C. Komarek, Yen-Fa Liao, Ku-Ding Tsuei, Ján Minár, Liu Hao Tjeng
Publikováno v:
Physical Review Research, Vol 4, Iss 3, p 033108 (2022)
It was hypothesized already more than 40 years ago that photoelectron spectroscopy should in principle be able to image atomic orbitals. If this can be made to work for orbitals in crystalline solids, one would have literally a different view on the
Externí odkaz:
https://doaj.org/article/769ee6919a9147b6abc050757178b398
Autor:
T. J. Boyle, M. Walker, A. Ruiz, E. Schierle, Z. Zhao, F. Boschini, R. Sutarto, T. D. Boyko, W. Moore, N. Tamura, F. He, E. Weschke, A. Gozar, W. Peng, A. C. Komarek, A. Damascelli, C. Schüßler-Langeheine, A. Frano, E. H. da Silva Neto, S. Blanco-Canosa
Publikováno v:
Physical Review Research, Vol 3, Iss 2, p L022004 (2021)
The La-based “214” cuprates host several symmetry-breaking phases, including superconductivity, charge and spin order in the form of stripes, and a structural orthorhombic-to-tetragonal phase transition. Therefore these materials are an ideal sys
Externí odkaz:
https://doaj.org/article/7df9536533034f2a8b86583e25adc360
Autor:
D. Takegami, C.-Y. Kuo, K. Kasebayashi, J.-G. Kim, C. F. Chang, C. E. Liu, C. N. Wu, D. Kasinathan, S. G. Altendorf, K. Hoefer, F. Meneghin, A. Marino, Y. F. Liao, K. D. Tsuei, C. T. Chen, K.-T. Ko, A. Günther, S. G. Ebbinghaus, J. W. Seo, D. H. Lee, G. Ryu, A. C. Komarek, S. Sugano, Y. Shimakawa, A. Tanaka, T. Mizokawa, J. Kuneš, L. H. Tjeng, A. Hariki
Publikováno v:
Physical Review X, Vol 12, Iss 1, p 011017 (2022)
We present a comprehensive study of CaCu_{3}Ru_{4}O_{12} using bulk sensitive hard and soft x-ray spectroscopy combined with local-density approximation+dynamical mean-field theory (DMFT) calculations. Correlation effects on both the Cu and Ru ions c
Externí odkaz:
https://doaj.org/article/621bb35e3c6047f89408d1f2e48427fa
Autor:
H. Guo, Z. W. Li, L. Zhao, Z. Hu, C. F. Chang, C.-Y. Kuo, W. Schmidt, A. Piovano, T. W. Pi, O. Sobolev, D. I. Khomskii, L. H. Tjeng, A. C. Komarek
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-7 (2018)
The phase transitions of rare earth nickelates have attracted intensive study as they arise from the complex interplay of charge, spin and lattice degrees of freedom. Here Guo et al. present evidence that LaNiO3 has an unanticipated magnetically orde
Externí odkaz:
https://doaj.org/article/d285706cb484414ca0c3eeda28d0d29a
Autor:
H. Y. Huang, A. Singh, C. Y. Mou, S. Johnston, A. F. Kemper, J. van den Brink, P. J. Chen, T. K. Lee, J. Okamoto, Y. Y. Chu, J. H. Li, S. Komiya, A. C. Komarek, A. Fujimori, C. T. Chen, D. J. Huang
Publikováno v:
Physical Review X, Vol 11, Iss 4, p 041038 (2021)
Quantum phase transitions play an important role in shaping the phase diagram of high-temperature cuprate superconductors. These cuprates possess intertwined orders which interact strongly with superconductivity. However, the evidence for the quantum
Externí odkaz:
https://doaj.org/article/5ed1f6ccd943482cb47ed9bbdeb43f4c
Autor:
Haoliang Huang, Yu-Chung Chang, Yu-Cheng Huang, Lili Li, Alexander C. Komarek, Liu Hao Tjeng, Yuki Orikasa, Chih-Wen Pao, Ting-Shan Chan, Jin-Ming Chen, Shu-Chih Haw, Jing Zhou, Yifeng Wang, Hong-Ji Lin, Chien-Te Chen, Chung-Li Dong, Chang-Yang Kuo, Jian-Qiang Wang, Zhiwei Hu, Linjuan Zhang
Publikováno v:
Nature Communications. 14
Designing efficient catalyst for the oxygen evolution reaction (OER) is of importance for energy conversion devices. The anionic redox allows formation of O-O bonds and offers higher OER activity than the conventional metal sites. Here, we successful