Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Divine Kumah"'
Autor:
Ankit Negi, Alejandro Rodriguez, Xuanyi Zhang, Andrew H. Comstock, Cong Yang, Dali Sun, Xiaoning Jiang, Divine Kumah, Ming Hu, Jun Liu
Publikováno v:
Advanced Science, Vol 10, Iss 19, Pp n/a-n/a (2023)
Abstract Nanosized perovskite ferroelectrics are widely employed in several electromechanical, photonics, and thermoelectric applications. Scaling of ferroelectric materials entails a severe reduction in the lattice (phonon) thermal conductivity, par
Externí odkaz:
https://doaj.org/article/9eff98aae49843ea9aafe3f3bf4191f0
Autor:
Ankit Negi, Hwang Pill Kim, Zilong Hua, Anastasia Timofeeva, Xuanyi Zhang, Yong Zhu, Kara Peters, Divine Kumah, Xiaoning Jiang, Jun Liu
Publikováno v:
Advanced Materials.
Publikováno v:
Advanced Engineering Materials. 25
Publikováno v:
Microscopy and Microanalysis. 27:1196-1197
Publikováno v:
Journal of Vacuum Science & Technology A. 40:013206
The control of chemical exchange across heterointerfaces formed between ultrathin functional transition-metal oxide layers provides an effective route to manipulate the electronic properties of these systems. By determining the layer-resolved structu
Autor:
Alexandru B. Georgescu, Sanaz Koohfar, Manuel A. Roldan, Divine Kumah, Elke Arenholz, Ritesh Sachan, Ingrid Hallsteinsen
Publikováno v:
Physical Review B. 101
We investigate the effect of strain and film thickness on the orbital and magnetic properties of ${\mathrm{LaSrCrO}}_{3}\phantom{\rule{0.16em}{0ex}}(\mathrm{LSCO})/{\mathrm{LaSrMnO}}_{3}$ (LSMO) heterostructures using bulk magnetometry, soft x-ray ma
Autor:
Divine Kumah, James W. Reiner, Lior Kornblum, Stephanie Fernandez-Pena, Chong H. Ahn, Alexie M. Kolpak, Yichen Jia, Zoran Krivokapic, Fred Walker, Sohrab Ismail-Beigi, Mehmet Dogan
Publikováno v:
Nano Letters. 18:241-246
A single atomic layer of ZrO2 exhibits ferroelectric switching behavior when grown with an atomically abrupt interface on silicon. Hysteresis in capacitance–voltage measurements of a ZrO2 gate stack demonstrate that a reversible polarization of the
Publikováno v:
Applied Physics Letters. 118:192905
The strong interfacial coupling at the 3d-5d transition metal-oxide interfaces has generated excitement due to the possibility of engineering a wide range of quantum phenomena and functionalities. Here, we investigate the electronic interfacial coupl
Autor:
Yingge Du, Xuan Shen, Kamyar Ahmadi-Majlan, Joseph H. Ngai, M. Chrysler, Dong Su, Timothy C. Droubay, Mark E. Bowden, Scott A. Chambers, Fred Walker, Chong H. Ahn, Divine Kumah, J. Moghadam
Publikováno v:
Journal of Materials Research. 32:249-259
Complex oxides and semiconductors exhibit distinct yet complementary properties owing to their respective ionic and covalent natures. By electrically coupling complex oxides to traditional semiconductors within epitaxial heterostructures, enhanced or
Publikováno v:
Microscopy and Microanalysis. 26:1192-1193