Zobrazeno 1 - 10
of 240
pro vyhledávání: '"James A. LeBeau"'
Autor:
Hae Yeon Lee, Soumya Sarkar, Kate Reidy, Abinash Kumar, Julian Klein, Kenji Watanabe, Takashi Taniguchi, James M. LeBeau, Frances M. Ross, Silvija Gradečak
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-9 (2022)
Optoelectronic properties of van der Waals heterostructures can be tuned via strain. Here, authors demonstrate strong and localized luminescence in the ultraviolet region from interface bubbles between stacked multilayers of hexagonal boron nitride.
Externí odkaz:
https://doaj.org/article/0b31cfca9da84e308f17701f6ef21d8d
Autor:
Shuai Ning, Abinash Kumar, Konstantin Klyukin, Eunsoo Cho, Jong Heon Kim, Tingyu Su, Hyun-Suk Kim, James M. LeBeau, Bilge Yildiz, Caroline A. Ross
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-7 (2021)
Ferroelectricity in orthoferrite perovskites has stimulated intense research, but the mechanism remains unclear. Here, the authors propose an antisite defect mechanism for introducing ferroelectricity in magnetically ordered YFeO3 and the family of r
Externí odkaz:
https://doaj.org/article/6f72b9c0c9664b97ac46d9bdb9969fbc
Autor:
Kate Reidy, Georgios Varnavides, Joachim Dahl Thomsen, Abinash Kumar, Thang Pham, Arthur M. Blackburn, Polina Anikeeva, Prineha Narang, James M. LeBeau, Frances M. Ross
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021)
Here, advanced scanning transmission electron microscopy techniques are used to image the atomic structure at the interface between 2D MoS2 and 3D Au nanoislands, revealing a moiré superlattice and illustrating the potential for (opto-)electronic mo
Externí odkaz:
https://doaj.org/article/96c2215394b3483ebc6b410e4921088b
Autor:
Xuanyi Zhang, Aubrey N. Penn, Lena Wysocki, Zhan Zhang, Paul H. M. van Loosdrecht, Lior Kornblum, James M. LeBeau, Ionela Lindfors-Vrejoiu, Divine P. Kumah
Publikováno v:
APL Materials, Vol 10, Iss 5, Pp 051107-051107-8 (2022)
The temperature-dependent layer-resolved structure of 3 to 44 unit cell thick SrRuO3 (SRO) films grown on Nb-doped SrTiO3 substrates is investigated using a combination of high-resolution synchrotron x-ray diffraction and high-resolution electron mic
Externí odkaz:
https://doaj.org/article/34e8aaa458ed4ae4ae187f769c22509c
Autor:
David Pham, Fangyuan Gai, Jacob Rochester, Joseph H. Dycus, James M. LeBeau, Venkateswara Rao Manga, Erica L. Corral
Publikováno v:
Journal of the American Ceramic Society. 106:3127-3140
Publikováno v:
AIP Advances, Vol 10, Iss 4, Pp 045113-045113-6 (2020)
The atomic and electronic structures of La0.7Sr0.3MnO3 (LSMO)/La0.7Sr0.3CrO3 (LSCO) multilayer thin films are investigated using aberration corrected scanning transmission electron microscopy (STEM) imaging and spectroscopy. Atomic resolution high an
Externí odkaz:
https://doaj.org/article/02f6da2b63b0438bb155c0d0c4395839
Autor:
Robbyn Trappen, A. C. Garcia-Castro, Vu Thanh Tra, Chih-Yeh Huang, Wilfredo Ibarra-Hernandez, James Fitch, Sobhit Singh, Jinling Zhou, Guerau Cabrera, Ying-Hao Chu, James M. LeBeau, Aldo H. Romero, Mikel B. Holcomb
Publikováno v:
Scientific Reports, Vol 8, Iss 1, Pp 1-7 (2018)
Abstract The Mn valence in thin film La0.7Sr0.3MnO3 was studied as a function of film thickness in the range of 1–16 unit cells with a combination of non-destructive bulk and surface sensitive X-ray absorption spectroscopy techniques. Using a layer
Externí odkaz:
https://doaj.org/article/b0a61479edce4b2ba50dc13e9c1619fe
Autor:
Jieun Kim, Abinash Kumar, Yubo Qi, Hiroyuki Takenaka, Philip J. Ryan, Derek Meyers, Jong-Woo Kim, Abel Fernandez, Zishen Tian, Andrew M. Rappe, James M. LeBeau, Lane W. Martin
Publikováno v:
Nature Physics. 18:1502-1509
Autor:
Ruihao Yuan, Abinash Kumar, Shihao Zhuang, Nicholas Cucciniello, Teng Lu, Deqing Xue, Aubrey Penn, Alessandro R. Mazza, Quanxi Jia, Yun Liu, Dezhen Xue, Jinshan Li, Jia-Mian Hu, James M. LeBeau, Aiping Chen
Publikováno v:
Nano Letters.
Publikováno v:
Applied Physics Letters. 122
The presence of short-range chemical order can be a key factor in determining the mechanical behavior of metals, but directly and unambiguously determining its distribution in complex concentrated alloy systems can be challenging. Here, we directly i