Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Bothschafter E. M."'
Autor:
Porer M., Fechner M., Bothschafter E. M., Rettig L., Narayan A., Radovic M., Savoini M., Esposito V., Rittmann J., Kubli M., Kubacka T., Huber T., Neugebauer M., Abreu E., Grübel S., Beaud P., Ingold G., Lantz G., Parchenko S., Song S., Sato T., Aschauer U., Spaldin N., Johnson S. L., Staub U.
Publikováno v:
EPJ Web of Conferences, Vol 205, p 07001 (2019)
We photoexcite SrTiO3 and EuTiO3 in their purely soft-mode-driven structurally distorted phase and trace the structural order parameter via ultra-short x-rays. We observe a rapid decay for SrTiO3 and an intriguing transient enhancement for EuTiO3.
Externí odkaz:
https://doaj.org/article/6c24965ee2ac4b4ba75b3f82cd77f354
Autor:
Ramakrishnan, M., Joly, Y., Meier, Q. N., Fechner, M., Porer, M., Parchenko, S., Windsor, Y. W., Bothschafter, E. M., Lichtenberg, F., Staub, U.
Hexagonal YMnO$_{3}$ is a prototype antiferromagnet which exhibits multiferroic behavior with the ferroelectric and magnetic transitions occurring at different temperatures. We observe an out-of-plane canting of the Mn$^{3+}$ magnetic moments using r
Externí odkaz:
http://arxiv.org/abs/2209.10378
Autor:
Kienberger R., Apalkov V., Hofstetter M., Fiess M., Holzner S., Bothschafter E. M., Sommer A., Schultze M., Yakovlev V.S., Stockman M. I., Krausz F.
Publikováno v:
EPJ Web of Conferences, Vol 41, p 02014 (2013)
Striking field-induced changes in the absorption near the Si L-edge of SiO2 exposed to a near-infrared laser field of several V/Å delivered by a few-cycle pulse are observed with sub-100 attosecond extreme ultraviolet pulses by means of attosecond t
Externí odkaz:
https://doaj.org/article/422590f1ebd54260a58b777ef033d958
Autor:
Porer, M., Fechner, M., Kubli, M., Neugebauer, M. J., Parchenko, S., Esposito, V., Narayan, A., Spaldin, N. A., Huber, R., Radovic, M., Bothschafter, E. M., Glownia, J. M., Sato, T., Song, S., Johnson, S. L., Staub, U.
Publikováno v:
Phys. Rev. Research 1, 012005 (2019)
The ability to control the structure of a crystalline solid on ultrafast timescales bears enormous potential for information storage and manipulation or generating new functional states of matter [1]. In many materials where the ultrafast control of
Externí odkaz:
http://arxiv.org/abs/1901.08388
Autor:
Staub, U., Rettig, L., Bothschafter, E. M., Windsor, Y. W., Ramakrishnan, M., Avula-Venkata, S. R., Dreiser, J., Piamonteze, C., Scagnoli, V., Mukherjee, S., Niedermayer, C., Medarde, M., Pomjakushina, E.
Publikováno v:
Phys. Rev. B 96, 174408 (2017)
X-ray magnetic circular and linear dichroism (XMCD and XMLD) have been used to investigate the Fe magnetic response during the spin reorientation transition (SRT) in TmFeO3. These experiments are complemented with resonant magnetic diffraction experi
Externí odkaz:
http://arxiv.org/abs/1705.00827
Autor:
Ramakrishnan, M., Joly, Y., Windsor, Y. W., Rettig, L., Alberca, A., Bothschafter, E. M., Lejay, P., Ballou, R., Simonet, V., Scagnoli, V., Staub, U.
Publikováno v:
Phys. Rev. B 95, 205145 (2017)
Chiral multiferroic langasites have attracted attention due to their doubly-chiral magnetic ground state within an enantiomorphic crystal. We report on a detailed resonant soft X-ray diffraction study of the multiferroic Ba$_3$TaFe$_3$Si$_2$O$_{14}$
Externí odkaz:
http://arxiv.org/abs/1703.04293
Autor:
Windsor, Y. W., Piamonteze, C., Ramakrishnan, M., Scaramucci, A., Rettig, L., Huever, J. A., Bothschafter, E. M., Alberca, A., Avula, S. R. V., Noheda, B., Staub, U.
Publikováno v:
Phys. Rev. B 95, 224413 (2017)
Using resonant soft X-ray techniques we follow the magnetic behavior of a strained epitaxial film of CoCr2O4, a type-II multiferroic. The film is [110]-oriented, such that both the ferroelectric and ferromagnetic moments can coexist in plane. X-ray m
Externí odkaz:
http://arxiv.org/abs/1702.08541
Autor:
Shimamoto, K., Windsor, Y. W., Hu, Y., Ramakrishnan, M., Alberca, A., Bothschafter, E. M., Rettig, L., Lippert, Th., Staub, U., Schneider, C. W.
Publikováno v:
Appl. Phys. Lett. 108, 112904 (2016)
Multiferroic properties of orthorhombic HoMnO3 (Pbnm space group) are significantly modified by epitaxial compressive strain along the a-axis. We are able to focus on the effect of strain solely along the a-axis by using an YAlO3 (010) substrate, whi
Externí odkaz:
http://arxiv.org/abs/1602.00821
Autor:
Johnson, Jeremy A., Kubacka, T., Hoffmann, M. C., Vicario, C., de Jong, S., Beaud, P., Gruebel, S., Huang, S. -W., Huber, L., Windsor, Y. W., Bothschafter, E. M., Rettig, L., Ramakrishnan, M., Alberca, A., Patthey, L., Chuang, Y. -D., Turner, J. J., Dakovski, G. L., Lee, W. -S., Minitti, M. P., Schlotter, W., Moore, R. G., Hauri, C. P., Koohpayeh, S. M., Scagnoli, V., Ingold, G., Johnson, S. L., Staub, U.
Publikováno v:
Physical Review B 92, 184429 (2015)
We performed ultrafast time-resolved near-infrared pump, resonant soft X-ray diffraction probe measurements to investigate the coupling between the photoexcited electronic system and the spin cycloid magnetic order in multiferroic TbMnO3 at low tempe
Externí odkaz:
http://arxiv.org/abs/1507.06628
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