Zobrazeno 1 - 10
of 20
pro vyhledávání: '"R P, Prasankumar"'
Coherent helicity-dependent spin-phonon oscillations in the ferromagnetic van der Waals crystal CrI3
Autor:
P. Padmanabhan, F. L. Buessen, R. Tutchton, K. W. C. Kwock, S. Gilinsky, M. C. Lee, M. A. McGuire, S. R. Singamaneni, D. A. Yarotski, A. Paramekanti, J.-X. Zhu, R. P. Prasankumar
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-8 (2022)
CrI3 is a van der Waals material which exhibits magnetic ordering down to the monolayer limit. Here, using ultrafast optical spectroscopy, Padmanabhan and Buessen et al. investigate the coupling between the magnetically ordered spins and lattice dist
Externí odkaz:
https://doaj.org/article/41f28a1cf9784d1c88679acbabf709c9
Autor:
B. Xu, Y. M. Dai, L. X. Zhao, K. Wang, R. Yang, W. Zhang, J. Y. Liu, H. Xiao, G. F. Chen, S. A. Trugman, J-X Zhu, A. J. Taylor, D. A. Yarotski, R. P. Prasankumar, X. G. Qiu
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-6 (2017)
The study of lattice vibrations coupled to electronic excitations may provide an avenue for exploring exotic physical phenomena. Here, Xuet al. observe a Fano resonance in the Weyl semimetal TaAs, revealing evidence for a strong coupling between phon
Externí odkaz:
https://doaj.org/article/41ab522a4c4c40bd819e61af65964aac
Autor:
N. Sirica, P. P. Orth, Y. M. Dai, M.-C. Lee, P. Padmanabhan, L. T. Mix, M. S. Scheurer, S. A. Trugman, J. -X. Zhu, N. Ni, X. G. Qiu, A. J. Taylor, D. A. Yarotski, R. P. Prasankumar
Publikováno v:
2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e1906357b887df6be10ad2adc288136
https://doi.org/10.1109/irmmw-thz50927.2022.9895701
https://doi.org/10.1109/irmmw-thz50927.2022.9895701
Autor:
Viktor Krapivin, Mingqiang Gu, D. Hickox-Young, S. W. Teitelbaum, Y. Huang, G. de la Peña, D. Zhu, N. Sirica, M.-C. Lee, R. P. Prasankumar, A. A. Maznev, K. A. Nelson, M. Chollet, James M. Rondinelli, D. A. Reis, M. Trigo
Publikováno v:
Physical review letters. 129(12)
We use an x-ray free-electron laser to study the ultrafast lattice dynamics following above band-gap photoexcitation of the incipient ferroelectric potassium-tantalate, \kto. % We use ultrafast near-UV (central wavelength 266\,nm and 50 fs pulse dura
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::79734da75ede053d00009073379642c4
https://pubmed.ncbi.nlm.nih.gov/36179158
https://pubmed.ncbi.nlm.nih.gov/36179158
Autor:
Min-Cheol Lee, N. Sirica, S. W. Teitelbaum, A. Maznev, T. Pezeril, R. Tutchton, V. Krapivin, G. A. de la Pena, Y. Huang, L. X. Zhao, G. F. Chen, B. Xu, R. Yang, J. Shi, J.-X. Zhu, D. A. Yarotski, X. G. Qiu, K. A. Nelson, M. Trigo, D. A. Reis, R. P. Prasankumar
Publikováno v:
Physical Review Letters
Physical Review Letters, 2022, 128 (15), pp.155301. ⟨10.1103/PhysRevLett.128.155301⟩
Physical Review Letters, 2022, 128 (15), pp.155301. ⟨10.1103/PhysRevLett.128.155301⟩
Using femtosecond time-resolved X-ray diffraction, we investigated optically excited coherent acoustic phonons in the Weyl semimetal TaAs. The low symmetry of the (112) surface probed in our experiment enables the simultaneous excitation of longitudi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::deeec8274104fa5c697c115929076b9b
https://hal.science/hal-03687796/document
https://hal.science/hal-03687796/document
Autor:
N S, Sirica, R P, Prasankumar
Publikováno v:
Nature materials. 20(3)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::0b84be701799d4ded6bf819445dc92ba
https://pubmed.ncbi.nlm.nih.gov/33633348
https://pubmed.ncbi.nlm.nih.gov/33633348
Autor:
P, Padmanabhan, F L, Buessen, R, Tutchton, K W C, Kwock, S, Gilinsky, M C, Lee, M A, McGuire, S R, Singamaneni, D A, Yarotski, A, Paramekanti, J-X, Zhu, R P, Prasankumar
Publikováno v:
Nature communications. 13(1)
The discovery of two-dimensional systems hosting intrinsic magnetic order represents a seminal addition to the rich landscape of van der Waals materials. CrI
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::36f777c35f9468323a4a4c948cd38b20
https://pubmed.ncbi.nlm.nih.gov/35918314
https://pubmed.ncbi.nlm.nih.gov/35918314
Publikováno v:
Physical Review X, Vol 4, Iss 2, p 021001 (2014)
Using ultrafast optical spectroscopy, we show that polaronic behavior associated with interfacial antiferromagnetic order is likely the origin of tunable magnetotransport upon switching the ferroelectric polarity in a La_{0.7}Ca_{0.3}MnO_{3}/BiFeO_{3
Externí odkaz:
https://doaj.org/article/312800d0b6ab4a76912d1982d2fd3a12
Publikováno v:
Physical Review X, Vol 4, Iss 2, p 021001 (2014)
Using ultrafast optical spectroscopy, we show that polaronic behavior associated with interfacial antiferromagnetic order is likely the origin of tunable magnetotransport upon switching the ferroelectric polarity in a La$_{0.7}$Ca$_{0.3}$MnO$_{3}$/Bi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::13ee73c4079419c4f28c9ac63ff51ede
http://arxiv.org/abs/1305.3990
http://arxiv.org/abs/1305.3990
Autor:
J, Qi, T, Durakiewicz, S A, Trugman, J-X, Zhu, P S, Riseborough, R, Baumbach, E D, Bauer, K, Gofryk, J-Q, Meng, J J, Joyce, A J, Taylor, R P, Prasankumar
Publikováno v:
Physical review letters. 111(5)
Ultrafast optical spectroscopy is used to study the antiferromagnetic f-electron system USb(2). We observe the opening of two charge gaps at low temperatures (/~45 K), arising from renormalization of the electronic structure. Analysis of our data ind
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::f37fa09c8577e47e2b75735582e47cba
https://pubmed.ncbi.nlm.nih.gov/23952443
https://pubmed.ncbi.nlm.nih.gov/23952443