Zobrazeno 1 - 10
of 10 371
pro vyhledávání: '"S.-W. Cheong"'
Autor:
K. Park, M. O. Yokosuk, M. Goryca, J. J. Yang, S. A. Crooker, S. -W. Cheong, K. Haule, D. Vanderbilt, H. -S. Kim, J. L. Musfeldt
Publikováno v:
npj Quantum Materials, Vol 7, Iss 1, Pp 1-7 (2022)
Abstract Magnetoelectrics with ultra-low symmetry and spin-orbit coupling are well known to display a number of remarkable properties including nonreciprocal directional dichroism. As a polar and chiral magnet, Ni3TeO6 is predicted to host this effec
Externí odkaz:
https://doaj.org/article/662fe8daa7094e31aad7ead7de182d2e
Autor:
Shiyu Fan, Sobhit Singh, Xianghan Xu, Kiman Park, Yubo Qi, S. W. Cheong, David Vanderbilt, Karin M. Rabe, J. L. Musfeldt
Publikováno v:
npj Quantum Materials, Vol 7, Iss 1, Pp 1-8 (2022)
Abstract Hafnia (HfO2) is a promising material for emerging chip applications due to its high-κ dielectric behavior, suitability for negative capacitance heterostructures, scalable ferroelectricity, and silicon compatibility. The lattice dynamics al
Externí odkaz:
https://doaj.org/article/2525bae62e29403eb4835b590d0d09d2
Autor:
Pyeongjae Park, Kisoo Park, Joosung Oh, Ki Hoon Lee, Jonathan C. Leiner, Hasung Sim, Taehun Kim, Jaehong Jeong, Kirrily C. Rule, Kazuya Kamazawa, Kazuki Iida, T. G. Perring, Hyungje Woo, S.-W. Cheong, M. E. Zhitomirsky, A. L. Chernyshev, Je-Geun Park
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-7 (2021)
In geometrically frustrated magnets small perturbations, such as non-magnetic impurities, can significantly alter the ground state. Here, using inelastic neutron scattering, Park et al. explore such a situation in Al-doped h-YMnO3, where the Aluminum
Externí odkaz:
https://doaj.org/article/f74d5df69d3e459f8a8ce35fe595e19e
Autor:
K. A. Smith, E. A. Nowadnick, S. Fan, O. Khatib, S. J. Lim, B. Gao, N. C. Harms, S. N. Neal, J. K. Kirkland, M. C. Martin, C. J. Won, M. B. Raschke, S.-W. Cheong, C. J. Fennie, G. L. Carr, H. A. Bechtel, J. L. Musfeldt
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-9 (2019)
Ferroic domain walls are nano-objects that are considered functional elements in future devices. Here, the authors study phonons across ferroelastic domain walls by synchrotron-based near-field infrared nano-spectroscopy and relate these changes to t
Externí odkaz:
https://doaj.org/article/a4deffb8fb5c42dc95015804d323710c
Autor:
M. Suzuki, B. Gao, G. Shibata, S. Sakamoto, Y. Nonaka, K. Ikeda, Z. Chi, Y.-X. Wan, T. Takeda, Y. Takeda, T. Koide, A. Tanaka, M. Kobayashi, S.-W. Cheong, A. Fujimori
Publikováno v:
Physical Review Research, Vol 4, Iss 1, p 013139 (2022)
The van der Waals ferromagnet Cr_{2}Ge_{2}Te_{6} (CGT) has a two-dimensional crystal structure where each layer is stacked through van der Waals force. We have investigated the nature of the ferromagnetism and the weak perpendicular magnetic anisotro
Externí odkaz:
https://doaj.org/article/deb6345cf8d245bfb06e97402ac68e92
Autor:
Min Gyu Kim, Hu Miao, Bin Gao, S.-W. Cheong, C. Mazzoli, A. Barbour, Wen Hu, S. B. Wilkins, I. K. Robinson, M. P. M. Dean, V. Kiryukhin
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-7 (2018)
Imaging the antiferromagnetic (AFM) domains facilitates the understanding and design of AFM spintronics but is still challenging. Here the authors show an imaging approach for antiphase domains in AFM Fe2Mo3O8 by resonantly scattered coherent soft X-
Externí odkaz:
https://doaj.org/article/3425cf914ada491fbecdb95534aaed57
Autor:
E. Chan, H. Lane, J. Pásztorová, M. Songvilay, R. D. Johnson, R. Downie, J-W. G. Bos, J. A. Rodriguez-Rivera, S.-W. Cheong, R. A. Ewings, N. Qureshi, C. Stock
Publikováno v:
Physical Review B. 107
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26662cea74d0db9dc293b5334c219dfc
https://doi.org/10.1103/physrevb.107.144420
https://doi.org/10.1103/physrevb.107.144420
Autor:
K. Park, J. Kim, S. Choi, S. Fan, C. Kim, D. G. Oh, N. Lee, S.-W. Cheong, V. Kiryukhin, Y. J. Choi, D. Vanderbilt, J. H. Lee, J. L. Musfeldt
In order to explore the consequences of spin-orbit coupling on spin-phonon interactions in a set of chemically-similar mixed metal oxides, we measured the infrared vibrational properties of Co$_4B_2$O$_9$ ($B$ = Nb, Ta) as a function of temperature a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c3e0c5d0873c5d48c12791134aba298
http://arxiv.org/abs/2304.04865
http://arxiv.org/abs/2304.04865
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Akademický článek
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