Université de Fribourg

Terahertz-driven phonon upconversion in SrTiO 3

Kozina, M. ; Fechner, M. ; Marsik, Premysl ; Driel, T. van ; Glownia, J. M. ; Bernhard, Christian ; Radovic, M. ; Zhu, D. ; Bonetti, S. ; Staub, U. ; Hoffmann, M. C.

In: Nature Physics, 2019, vol. 15, no. 4, p. 387–392

Direct manipulation of the atomic lattice using intense long-wavelength laser pulses has become a viable approach to create new states of matter in complex materials. Conventionally, a high-frequency vibrational mode is driven resonantly by a mid- infrared laser pulse and the lattice structure is modified through indirect coupling of this infrared-active phonon to other, lower-frequency...

Consortium of Swiss Academic Libraries

Abstracts of presentations on plant protection issues at the fifth international Mango Symposium Abstracts of presentations on plant protection issues at the Xth international congress of Virology : September 1-6, 1996 Dan Panorama Hotel, Tel Aviv, Israel August 11-16, 1996 Binyanei haoma, Jerusalem, Israel

Peña, J. ; Wysoki, M. ; Singh, Gajendra ; Boscán de M., Nancy ; Godoy, Freddy ; Obligado, A. ; Rossetto, C. ; Ribeiro, I. ; Gallo, P. ; Soares, N. ; Sabino, J. ; Martins, A. ; Bortoletto, N. ; Ploetz, R. ; Benscher, D. ; Vázquez, Aimé ; Colls, A. ; Nagel, Julianne ; Schaffer, B. ; Pinkas, Y. ; Maymon, M. ; Freeman, S. ; Bostros Bastawros, Mikhail ; Gosbee, M. ; Johnson, G. ; Joyce, D. ; Irwin, J. ; Saaiman, W. ; Prusky, D. ; Falik, E. ; Kobiler, I. ; Fuchs, Y. ; Zauberman, G. ; Pesis, E. ; Ackerman, M. ; Roth, I. ; Weksler, A. ; Yekutiely, O. ; Waisblum, A. ; Keinan, A. ; Ofek, G. ; Reved, R. ; Barak, R. ; Bel, P. ; Artes, L. ; Visarathanonth, N. ; Xu, Z. ; Ponce de León, L. ; Muñoz, C. ; Pérez, L. ; Diaz de León, F. ; Kerbel, C. ; Esparza, S. ; Bósquez, E. ; Trinidad, M. ; Coates, L. ; Cooke, A. ; Dean, J. ; Lucia Duarte, Ana ; Alberto Otto, Paulo ; Malavasi, Aldo ; Lizado, M. ; Bautista, M. ; Artes, L. ; Bacalangco, N. ; Farungsang, U. ; Farungsang, N. ; Waskar, D. ; Masalkar, S. ; Gaikwad, R. ; Damame, S. ; Bally, Ian ; O'Hare, Tim ; Holmes, Rowland ; Atabekov, J. ; Fauquet, Claude ; Tomori, O. ; Nuss, D. ; Ahlquist, P. ; Díez, J. ; Ishikawa, M. ; Janda, M. ; Price, B. ; Restrepo-Hartwig, M. ; Bol, J. ; van Rossum, C. ; Garcia, M. ; van der Vossen, E. ; Reusken, Chantal ; Canto, T. ; Gal-On, A. ; Palukaitis, P. ; Roossinck, M. ; Flasinski, S. ; Restrepo-Hartwig, Maria ; Ahlquist, Paul ; Smirnyagina, Ekaterina ; Lin, Na-Sheng ; Nagy, Peter ; Figlerowicz, Marek ; Bujarski, Jozef ; Proll, D. ; Guyatt, K. ; Davidson, A. ; Kim, Kook-Hyung ; Miller, Eric ; Hemenway, Cynthia ; Havelda, Z. ; Dalmay, T. ; Burgyán, J. ; Kearney, C. ; Thomson, M. ; Roland, K. ; Dawson, W. ; Bao, Y. ; Carter, S. ; Nelson, R. ; Derrick, P. ; Shun Ding, Xin ; Eskarous, J. ; Sarkar, S. ; El-Shamy, M. ; Chen, J. ; Sako, N. ; Yuichiro, W. ; Ohshima, K. ; Okada, Y. ; Felden, Brice ; Kuznetsov, Yuri ; Malkin, Alexander ; Greenwood, Aaron ; McPherson, Alexander ; Ivanov, K. ; Dorokhov, Y. ; Kim, C. ; Sálanki, Katalin ; Carrére, Isabelle ; Jacquemond, Mireille ; Tepfer, Mark ; Balazs, Ervin ; Sanz, A. ; Serra, M. ; García-Luque, I. ; Revers, F. ; Candresse, T. ; LeGall, O. ; Souche, S. ; Lot, H. ; Dunez, J. ; Cecchini, E. ; Milner, J. ; Al-Kaff, N. ; Covey, S. ; Gong, Z. ; Geri, C. ; Covey, S. ; Richert-Pöggeler, K. ; Shepherd, R. ; Casper, R. ; Meiri, Eti ; Raccah, B. ; Gera, A. ; Singer, S. ; Allam, E. ; El Afifi, Soheir ; Abo El Nasr, M. ; Abd El Ghaffar, M. ; Elisabeth Johansen, I. ; Keller, K. ; Hampton, R. ; SÕrensen, Karina ; Bishnoi, S. ; Rishi, Narayan ; Gumedzoe, M. ; Atissime, K. ; Yedibahoma, S. ; Wellink, Joan ; Verver, Jan ; Bertens, Peter ; van Lent, Jan ; Goldbach, Rob ; van Kammen, Ab ; Lekkerkerker, Annemarie ; Taylor, K. ; Spall, V. ; Lomonossoff, G. ; Yu. Morozov, S. ; Solovyev, A. ; Zelenina, D. ; Savenkov, E. ; Grdzelishvili, V. ; Morozov, S. ; Jansen, K. ; Wolfs, C. ; Lohuis, H. ; Verduin, B. ; Stein-Margolina, V. ; Hsu, Y. ; Chang, B. ; Lin, N. ; Pilartz, Marcel ; Jeske, Holger ; Verchot, Jeanmarie ; Baulcombe, David ; English, David ; Müller, E. ; Baulcombe, D. ; Malcuit, Isabelle ; Kavanagh, Tony ; Valkonen, J. ; Puurand, Ü. ; Merits, A. ; Rabinstein, F. ; Sorri, O. ; Saarma, M. ; Liao, Y. ; Vaquero-Martin, C. ; Monecke, M. ; Rohde, W. ; Prüfer, D. ; Fischer, R. ; Antignus, Y. ; Lachman, O. ; Pearlsman, M. ; Cohen, S. ; Qiu, W. ; Moyer, J. ; Feldhoff, A. ; Kikkert, M. ; Kormelink, R. ; Krczal, G. ; Peters, D. ; Szittya, György ; Burgyán, József ; Wvpijewski, K. ; Paduch-Cichal, E. ; Rezler, A. ; Skrzeczkowska, S. ; Augustyniak, J. ; Nemchinov, L. ; Maiss, E. ; Hadidi, A. ; Wittner, Anita ; Palkovics, László ; Balázs, Ervin ; Crescenzi, A. ; Piazzolla, P. ; Kheyr-Pour, A. ; Dafalla, G. ; Lecoq, H. ; Gronenborn, B. ; Bauer, U. ; Laux, I. ; Hajimorad, M. ; Ding, X. ; Flasinski, Stanislaw ; Cassidy, Pour ; Dugdale, B. ; Beetham, P. ; Harding, R. ; Dale, J. ; Qiu, G. ; Shaw, J. ; Molnár, A. ; Más, P. ; Balsalobre, J. ; Sánchez-Pina, M. ; Pallás, V. ; Rahontei, J. ; López, L. ; Lázara, J. ; Barón, M. ; Owens, R. ; Steger, G. ; Hu, Y. ; Fels, A. ; Hammond, R. ; Riesner, D. ; Schröder, A. ; Góra, A. ; Pawlowicz, J. ; Kierzek, A. ; Zagorski, W. ; Baumstark, T. ; Schiebel, W. ; Schiebel, R. ; Axmann, A. ; Haas, B. ; Sänger, H. ; Xicai, Yang ; Yin, Yie ; Feng, Zhu ; Yule, Liu ; Liangyi, Kang ; Po, Tien ; Poliyka, H. ; Staub, U. ; Wagner, M. ; Gross, H. ; Sano, Teruo ; Ishiguro, Akiro ; Fayos, J. ; Garro, R. ; Bellés, J. ; Conejero, V. ; Bonfiglioli, R. ; Webb, D. ; Symons, R. ; El-Dougdoug, K. ; Abo-Zeid, A. ; Ambrós, S. ; Hernandez, C. ; Desvignes, J. ; Flores, R. ; d'Aquilio, M. ; Lisa, V. ; Boccardo, G. ; Vera, A. ; Daròs, J. ; Henkel, J. ; Spieker, R. ; Higgins, C. ; Turley, R. ; Chamberlain, D. ; Bateson, M. ; Dale, J. ; d'Aquino, L. ; Ragozzino, A. ; Henderson, J. ; Bateson, M. ; Chaleeprom, W. ; Gibbs, A. ; Graichen, K. ; Rabenstein, F. ; Schliephake, E. ; Smith, H. ; Stevens, M. ; Sadowy, E. ; Hulanicka, D. ; Wegener, B. ; Martin, M. ; Wetzel, T. ; Cook, G. ; Kasdorf, G. ; Pietersen, G. ; Braithwaite, Kathryn ; Gambley, Cherie ; Smith, Grant ; Druka, Arnis ; Villegas, Lucille ; Dahal, Ganesh ; Hull, Roger ; Senchugova, N. ; Büchen-Osmond, C. ; Dallwitz, M. ; Blaine, L. ; Naik, P. ; Sonone, A. ; Kolaskar, A. ; Sgro, J. ; Palmenberg, A. ; Leclerc, Denis ; Hohn, Thomas ; Moriones, E. ; Batlle, A. ; Luis, M. ; Alvarez, J. ; Bernal, J. ; Alonso, J. ; Spak, J. ; Kubelkova, D. ; Kuo, T. ; Gachechiladze, K. ; Adamia, R. ; Balardshishvili, N. ; Chanishvili, T. ; Krüger, D. ; Nagy, Tibor ; Élö, Péter ; Papp, Péter ; Orosz, László ; Licis, N. ; Berzins, V. ; Sariol-Carbelo, Carlos ; RodrCarlos, C. ; Janzen, D. ; Ward, Colin ; Scott, S. ; Shiel, P. ; Berger, P. ; Aleman, M. ; Beachy, R. ; Fauquet, C. ; Salm, S. ; Rybicki, E. ; Rey, M. ; Briddon, R. ; Harper, G. ; Druka, A. ; Phillips, S. ; Brunt, A. ; Hull, R. ; Hay, Jo ; Dasgupta, Indranil ; Zaifeng, Fan ; Meehan, Brian ; Todd, Daniel ; Bunk, Hans-Jörk ; Grieco, F. ; Martelli, G. ; Saldarelli, P. ; Minafra, A. ; Morag, A. ; Mumcuoglu, M. ; Baybikov, T. ; Schlesinger, M. ; Zakay-Rones, Z. ; Shohat, B. ; Shohat, M. ; Miller, M. ; Shaklay, M. ; Kalvatchev, Z. ; Walder, R. ; Garzaro, D. ; Barrios, M. ; Karagöz, Ali ; Kuru, Avni ; Karim, M. ; Johnson, A. ; Takida, S. ; Thompson, M. ; Omer, H. ; Omer, O. ; Biyiti, L. ; Amvam, R. ; Lamaty, G. ; Bouchet, P. ; Xu, J. ; Hefferon, K. ; Abou Haidar, M. ; Meng, A.

In: Phytoparasitica, 1997, vol. 25, no. 1, p. 45-86

Université de Fribourg

Magnetic properties of strained multiferroic $\mathrm{CoC}{\mathrm{r}}_{2}{\mathrm{O}}_{4}$: A soft x-ray study

Windsor, Y. W. ; Piamonteze, C. ; Ramakrishnan, M. ; Scaramucci, A. ; Rettig, L. ; Huever, J. A. ; Bothschafter, E. M. ; Bingham, N. S. ; Alberca, Aurora ; Avula, S. R. V. ; Noheda, B. ; Staub, U.

In: Physical Review B, 2017, vol. 95, no. 22, p. 224413

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 magnetic circular dichroism (XMCD) is used in scattering and in transmission modes to probe the magnetization of Co and Cr separately. The...

Université de Fribourg

Crystal symmetry lowering in chiral multiferroic ${\mathrm{Ba}}_{3}{\mathrm{TaFe}}_{3}{\mathrm{Si}}_{2}{\mathrm{O}}_{14}$ observed by x-ray magnetic scattering

Ramakrishnan, M. ; Joly, Y. ; Windsor, Y. W. ; Rettig, L. ; Alberca, Aurora ; Bothschafter, E. M. ; Lejay, P. ; Ballou, R. ; Simonet, V. ; Scagnoli, V. ; Staub, U.

In: Physical Review B, 2017, vol. 95, no. 20, p. 205145

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 Ba3TaFe3Si2O14 at the Fe L2,3 and oxygen K edges. Below TN (≈27K) we observe the satellite reflections (0,0,τ), (0,0,2τ), (0,0,3τ), and (0,0,1−3τ) where...

Université de Fribourg

Local terahertz field enhancement for time-resolved x-ray diffraction

Kozina, M. ; Pancaldi, Matteo ; Bernhard, Christian ; Driel, T. van ; Glownia, J. M. ; Maršík, Premysl ; Radovic, M. ; Vaz, Carlos A. F. ; Zhu, D. ; Bonetti, Stephano ; Staub, U. ; Hoffmann, Matthias C.

In: Applied Physics Letters, 2017, vol. 110, no. 8, p. 081106

We report local field strength enhancement of single-cycle terahertz (THz) pulses in an ultrafast time-resolved x-ray diffraction experiment. We show that patterning the sample with gold microstructures increases the THz field without changing the THz pulse shape or drastically affecting the quality of the x-ray diffraction pattern. We find a five-fold increase in THz-induced x-ray...

Université de Fribourg

Element-specific magnetization redistribution at ${\mathrm{YBa}}_{2}{\mathrm{Cu}}_{3}{\mathrm{O}}_{7}/{\mathrm{La}}_{2/3}{\mathrm{Ca}}_{1/3}{\mathrm{MnO}}_{3}$ interfaces

Alberca, Aurora ; Uribe-Laverde, Miguel Angel ; Windsor, Y. W. ; Ramakrishnan, M. ; Rettig, L. ; Marozau, Ivan ; Tonnerre, J-M. ; Stahn, J. ; Staub, U. ; Bernhard, Christian

In: Physical Review B, 2015, vol. 92, no. 17, p. 174415

We study the element-specific magnetic depth profiles of a YBa2Cu3O7/La2/3Ca1/3MnO3 (YBCO/LCMO) superlattice using soft x-ray resonant magnetic reflectometry (XRMR). This allows us to study the magnetic proximity effect (MPE) that is observed at the YBCO/LCMO interface, characterized by the occurrence of a depleted layer on the manganite side and an induced magnetization in the YBCO. Using the...