Zobrazeno 1 - 10
of 203
pro vyhledávání: '"S, Agrestini"'
Impact of electron correlations on two-particle charge response in electron- and hole-doped cuprates
Autor:
Abhishek Nag, Luciano Zinni, Jaewon Choi, J. Li, Sijia Tu, A. C. Walters, S. Agrestini, S. M. Hayden, Matías Bejas, Zefeng Lin, H. Yamase, Kui Jin, M. García-Fernández, J. Fink, Andrés Greco, Ke-Jin Zhou
Publikováno v:
Physical Review Research, Vol 6, Iss 4, p 043184 (2024)
Estimating many-body effects that deviate from an independent particle approach has long been a key research interest in condensed matter physics. Layered cuprates are prototypical systems, where electron-electron interactions are found to strongly a
Externí odkaz:
https://doaj.org/article/ca1d33a230cf4f17b9a908f4f759257e
Autor:
Abhishek Nag, Yiran Peng, Jiemin Li, S. Agrestini, H. C. Robarts, Mirian García-Fernández, A. C. Walters, Qi Wang, Qiangwei Yin, Hechang Lei, Zhiping Yin, Ke-Jin Zhou
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-7 (2022)
In flat band materials, the ’flat’ dispersion of the electronic states mean that interactions between electrons can be strong, potentially leading to a variety of interesting magnetic and transport properties. Here, Nag et al study the Kagomé se
Externí odkaz:
https://doaj.org/article/18b2d812542f432c9046457ed34a0008
Autor:
A. Nag, A. Nocera, S. Agrestini, M. Garcia-Fernandez, A. C. Walters, Sang-Wook Cheong, S. Johnston, Ke-Jin Zhou
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-7 (2022)
Multipolar magnetic excitations are challenging to measure as most experimental probes are sensitive to dipolar processes. Here, Nag et al. show the existence of dispersing quadrupolar components to the spin excitations in an antiferromagnet, highlig
Externí odkaz:
https://doaj.org/article/dd07682c772d48948e4145cd8f3cb87e
Autor:
D.-S. Park, A. D. Rata, I. V. Maznichenko, S. Ostanin, Y. L. Gan, S. Agrestini, G. J. Rees, M. Walker, J. Li, J. Herrero-Martin, G. Singh, Z. Luo, A. Bhatnagar, Y. Z. Chen, V. Tileli, P. Muralt, A. Kalaboukhov, I. Mertig, K. Dörr, A. Ernst, N. Pryds
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)
In the interfaces of non-magnetic complex oxides, it is unclear which defects are responsible for the magnetic interfaces. Here, the authors find the B-site cation stoichiometry is crucial for the creation and control of magnetism at the interface be
Externí odkaz:
https://doaj.org/article/4d3a4f7df7b948abbed1b6c705b5bd55
Autor:
A.S. Menon, B.J. Johnston, S.G. Booth, L. Zhang, K. Kress, B.E. Murdock, G. Paez Fajardo, N.N. Anthonisamy, N. Tapia-Ruiz, S. Agrestini, M. Garcia-Fernandez, K. Zhou, P.K. Thakur, T.L. Lee, A.J. Nedoma, S.A. Cussen, L.F.J. Piper
Publikováno v:
PRX Energy, Vol 2, Iss 1, p 013005 (2023)
The desire to increase the energy density of stoichiometric layered LiTMO_{2} (TM = 3d transition metal) cathode materials has promoted investigation into their properties at high states of charge. Although there is increasing evidence for pronounced
Externí odkaz:
https://doaj.org/article/e225c4047b8b4872bde202dad8eff401
Autor:
D. Takegami, A. Tanaka, S. Agrestini, Z. Hu, J. Weinen, M. Rotter, C. Schüßler-Langeheine, T. Willers, T. C. Koethe, T. Lorenz, Y. F. Liao, K. D. Tsuei, H.-J. Lin, C. T. Chen, L. H. Tjeng
Publikováno v:
Physical Review X, Vol 13, Iss 1, p 011037 (2023)
We investigate the electronic structure of LaCoO_{3} across the gradual spin-state and insulator-to-metal transitions using bulk-sensitive hard x-ray photoelectron and soft x-ray absorption spectroscopies. The spectra exhibit strong variations with t
Externí odkaz:
https://doaj.org/article/60ae3c05c43747a7ae766310d46e2eb5
Autor:
L. Bergmann, P. Düring, S. Agrestini, A. Efimenko, S.-C. Liao, Z. Hu, P. Gargiani, C.-J. Choi, H. Baik, D.-S. Park, K. Dörr, A. D. Rata
Publikováno v:
AIP Advances, Vol 10, Iss 3, Pp 035132-035132-8 (2020)
Bilayers of the oxide 3d ferromagnet La0.7Sr0.3MnO3 (LSMO) and the 5d paramagnet SrIrO3 (SIO) with large spin–orbit coupling (SOC) have been investigated regarding the impact of interfacial SOC on magnetic order. For the growth sequence of LSMO on
Externí odkaz:
https://doaj.org/article/eeb1bcb84a3f4a63b0c77d13de3a6ee9
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