Zobrazeno 1 - 10
of 140
pro vyhledávání: '"Porer, M."'
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:
Maklar, J., Windsor, Y. W., Nicholson, C. W., Puppin, M., Walmsley, P., Esposito, V., Porer, M., Rittmann, J., Leuenberger, D., Kubli, M., Savoini, M., Abreu, E., Johnson, S. L., Beaud, P., Ingold, G., Staub, U., Fisher, I. R., Ernstorfer, R., Wolf, M., Rettig, L.
The interaction of many-body systems with intense light pulses may lead to novel emergent phenomena far from equilibrium. Recent discoveries, such as the optical enhancement of the critical temperature in certain superconductors and the photo-stabili
Externí odkaz:
http://arxiv.org/abs/2011.03230
Autor:
Hernandez, N Ortiz, Parchenko, S, Mardegan, J R L, Porer, M, Schierle, E, Weschke, E, Ramakrishnan, M, Radovic, M, Heuver, J A, Noheda, B, Daffe, N, Dreiser, J, Ueda, H., Staub, U
Publikováno v:
Phys. Rev. B 103, 085123 (2021)
We report a soft x-ray resonant magnetic scattering study of the spin configuration in multiferroic thin films of Co$_{0.975}$Ge$_{0.025}$Cr$_2$O$_4$ (Ge-CCO) and CoCr$_2$O$_4$ (CCO), under low- and high-magnetic fields, from 0.2 T up to 6.5 T. A cha
Externí odkaz:
http://arxiv.org/abs/2010.01518
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:
Porer, M., Fechner, M., Bothschafter, E., Rettig, L., Savoini, M., Esposito, V., Rittmann, J., Kubli, M., Neugebauer, M. J., Abreu, E., Kubacka, T., Huber, T., Lantz, G., Parchenko, S., Grübel, S., Paarmann, A., Noack, J., Beaud, P., Ingold, G., Aschauer, U., Johnson, S. L., Staub, U.
Publikováno v:
Phys. Rev. Lett. 121, 055701 (2018)
The ultrafast dynamics of the octahedral rotation in Ca:SrTiO3 is studied by time resolved x-ray diffraction after photo excitation over the band gap. By monitoring the diffraction intensity of a superlattice reflection that is directly related to th
Externí odkaz:
http://arxiv.org/abs/1805.00580
Autor:
Lantz, G., Laulhé, C., Ravy, S., Kubli, M., Savoini, M., Tasca, K., Abreu, E., Esposito, V., Porer, M., Ciavardini, A., Cario, L., Rittmann, J., Beaud, P., Johnson, S. L.
Publikováno v:
Phys. Rev. B 96, 224101 (2017)
Recent experiments have shown that the high temperature incommensurate (I) charge density wave (CDW) phase of 1T-TaS2 can be photoinduced from the lower temperature, nearly commensurate (NC) CDW state. Here we report a time-resolved x-ray diffraction
Externí odkaz:
http://arxiv.org/abs/1708.08811
Autor:
Mènárd, J. -M., Poellmann, C., Porer, M., Galopin, U. Leierseder E., Lemaître, A., Amo, A., Bloch, J., Huber, R.
Condensation of bosons causes spectacular phenomena such as superfluidity or superconductivity. Understanding the nature of the condensed particles is crucial for active control of such quantum phases. Fascinating possibilities emerge from condensate
Externí odkaz:
http://arxiv.org/abs/1605.04931
Autor:
Poellmann, C., Steinleitner, P., Leierseder, U., Nagler, P., Plechinger, G., Porer, M., Bratschitsch, R., Schüller, C., Korn, T., Huber, R.
Atomically thin two-dimensional crystals have revolutionized materials science. In particular, monolayer transition metal dichalcogenides promise novel optoelectronic applications, due to their direct energy gaps in the optical range. Their electroni
Externí odkaz:
http://arxiv.org/abs/1605.01164
Autor:
Porer, M., Leierseder, U., Ménard, J. -M., Dachraoui, H., Mouchliadis, L., Perakis, I. E., Heinzmann, U., Demsar, J., Rossnagel, K., Huber, R.
Publikováno v:
Nature Materials 13, 857 (2014)
The simultaneous ordering of different degrees of freedom in complex materials undergoing spontaneous symmetry-breaking transitions often involves intricate couplings that have remained elusive in phenomena as wide ranging as stripe formation, unconv
Externí odkaz:
http://arxiv.org/abs/1604.05627
Autor:
Kim, K. W., Pashkin, A., Schäfer, H., Beyer, M., Porer, M., Wolf, T., Bernhard, C., Demsar, J., Huber, R., Leitenstorfer, A.
Publikováno v:
Nature materials, vol. 11, p. 497 (2012)
The interplay among charge, spin and lattice degrees of freedom in solids gives rise to intriguing macroscopic quantum phenomena such as colossal magnetoresistance, multiferroicity and high-temperature superconductivity. Strong coupling or competitio
Externí odkaz:
http://arxiv.org/abs/1207.3987