Zobrazeno 1 - 10
of 153
pro vyhledávání: '"Walker, Frederick J."'
Autor:
Kim, Jeong Rae, Sohn, Byungmin, Lee, Hyeong Jun, Lee, Sangmin, Ko, Eun Kyo, Hahn, Sungsoo, Lee, Sangjae, Kim, Younsik, Kim, Donghan, Kim, Hong Joon, Kim, Youngdo, Son, Jaeseok, Ahn, Charles H., Walker, Frederick J., Go, Ara, Kim, Miyoung, Kim, Choong H., Kim, Changyoung, Noh, Tae Won
Interfaces between dissimilar correlated oxides can offer devices with versatile functionalities. In that respect, manipulating and measuring novel physical properties of oxide heterointerfaces are highly desired. Yet, despite extensive studies, obta
Externí odkaz:
http://arxiv.org/abs/2203.04244
Autor:
Pelliciari, Jonathan, Lee, Sangjae, Gilmore, Keith, Li, Jiemin, Gu, Yanhong, Barbour, Andi, Jarrige, Ignace, Ahn, Charles H., Walker, Frederick J., Bisogni, Valentina
Publikováno v:
Nat. Mat. (2021)
Spin excitations of magnetic thin films are the founding element for novel transport concepts in spintronics, magnonics, and magnetic devices in general. While spin dynamics have been extensively studied in bulk materials, their behaviour in mesoscop
Externí odkaz:
http://arxiv.org/abs/2010.08745
Autor:
Qi, Yubo, Singh, Sobhit, Lau, Claudia, Huang, Fei-Ting, Xu, Xianghan, Walker, Frederick J., Ahn, Charles H., Cheong, Sang-Wook, Rabe, Karin M.
Publikováno v:
Phys. Rev. Lett. 125, 257603 (2020)
Hafnia (HfO$_2$)-based thin films have promising applications in nanoscale electronic devices due to their robust ferroelectricity and integration with silicon. However, HfO$_2$ has various stable and metastable polymorphs with quite similar structur
Externí odkaz:
http://arxiv.org/abs/2001.08692
Akademický článek
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Autor:
Disa, Ankit S., Georgescu, Alexandru B., Hart, James L., Kumah, Divine P., Shafer, Padraic, Arenholz, Elke, Arena, Dario A., Ismail-Beigi, Sohrab, Taheri, Mitra L., Walker, Frederick J., Ahn, Charles H.
Publikováno v:
Phys. Rev. Materials 1, 024410 (2017)
The combination of charge and spin degrees of freedom with electronic correlations in condensed matter systems leads to a rich array of phenomena, such as magnetism, superconductivity, and novel conduction mechanisms. While such phenomena are observe
Externí odkaz:
http://arxiv.org/abs/1809.07810
Autor:
Dagdeviren, Omur E., Mandal, Subhasish, Zou, Ke, Zhou, Chao, Simon, Georg H., Walker, Frederick J., Ahn, Charles H., Schwarz, Udo D., Ismail-Beigi, Sohrab, Altman, Eric I.
Publikováno v:
Phys. Rev. Materials 2, 114205 (2018)
In topological crystalline insulators the topological conducting surface states are protected by crystal symmetry, in principle making it possible to pattern nanoscale insulating and conductive motifs solely by breaking local symmetries on an otherwi
Externí odkaz:
http://arxiv.org/abs/1804.00383
Akademický článek
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Akademický článek
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Autor:
Chen, Hanghui, Qiao, Qiao, Marshall, Matthew S. J., Georgescu, Alexandru B., Gulec, Ahmet, Phillips, Patrick J., Klie, Robert F., Walker, Frederick J., Ahn, Charles H., Ismail-Beigi, Sohrab
Publikováno v:
Nano Lett. 14, 4965 (2014)
The breaking of orbital degeneracy on a transition metal cation and the resulting unequal electronic occupations of these orbitals provide a powerful lever over electron density and spin ordering inmetal oxides. Here, we use ab initio calculations to
Externí odkaz:
http://arxiv.org/abs/1409.3672
Autor:
Xiong, Chi, Pernice, Wolfram H. P., Ngai, Joseph H., Reiner, James W., Kumah, Divine, Walker, Frederick J., Ahn, Charles H., Tang, Hong X.
Publikováno v:
Nano Lett., 2014, 14 (3), pp 1419-1425
The integration of complex oxides on silicon presents opportunities to extend and enhance silicon technology with novel electronic, magnetic, and photonic properties. Among these materials, barium titanate (BaTiO3) is a particularly strong ferroelect
Externí odkaz:
http://arxiv.org/abs/1401.4184