Zobrazeno 1 - 10
of 262
pro vyhledávání: '"Dehn M"'
Autor:
Dehn, M. H., Shenton, J. K., Arseneau, D. J., MacFarlane, W. A., Morris, G. D., Maigné, A., Spaldin, N. A., Kiefl, R. F.
Publikováno v:
Phys. Rev. Lett. 126 037202 (2021)
We perform detailed muon spin rotation ($\mu$SR) measurements in the classic antiferromagnet Fe$_2$O$_3$ and explain the spectra by considering dynamic population and dissociation of charge-neutral muon-polaron complexes. We show that charge-neutral
Externí odkaz:
http://arxiv.org/abs/2101.09235
Autor:
Esser, A., Thiel, M., Achenbach, P., Aulenbacher, K., Aulenbacher, S., Baunack, S., Bosnar, D., Caiazza, S., Christmann, M., Dehn, M., Distler, M. O., Doria, L., Eckert, P., Gorchtein, M., Guelker, P., Herrmann, P., Hoek, M., Kegel, S., Klag, P., Kreidel, H. -J., Littich, M., Lunkenheimer, S., Maas, F. E., Makek, M., Merkel, H., Mihovilovivc, M., Mueller, J., Mueller, U., Pochodzalla, J., Schlimme, B. S., Spreckels, R., Tioukine, V., Sfienti, C.
We report on a new measurement of the beam-normal single spin asymmetry $A_{\mathrm{n}}$ in the elastic scattering of 570 MeV transversely polarized electrons off $^{28}$Si and $^{90}$Zr at $Q^{2}=0.04\, \mathrm{GeV}^2/c^2$. The studied kinematics al
Externí odkaz:
http://arxiv.org/abs/2004.14682
Autor:
Dehn, M. H., Shenton, J. K., Holenstein, S., Meier, Q. N., Arseneau, D. J., Cortie, D. L., Hitti, B., Fang, A. C. Y., MacFarlane, W. A., McFadden, R. M. L., Morris, G. D., Salman, Z., Luetkens, H., Spaldin, N. A., Fechner, M., Kiefl, R. F.
Publikováno v:
Phys. Rev. X 10, 011036 (2020)
We report a comprehensive muon spin rotation ($\mu$SR) study of the prototypical magnetoelectric antiferromagnet Cr$_2$O$_3$. We find the positively charged muon ($\mu^+$) occupies several distinct interstitial sites, and displays a rich dynamic beha
Externí odkaz:
http://arxiv.org/abs/1909.00416
Autor:
Chatzichristos, A., McFadden, R. M. L., Dehn, M. H., Dunsiger, S. R., Fujimoto, D., Karner, V. L., McKenzie, I., Morris, G. D., Pearson, M. R., Stachura, M., Sugiyama, J., Ticknor, J. O., MacFarlane, W. A., Kiefl, R. F.
Publikováno v:
Phys. Rev. Lett. 123, 095901 (2019)
We report measurements of the diffusion rate of isolated ion-implanted $^{8}$Li$^{+}$ within $\sim$120 nm of the surface of oriented single-crystal rutile TiO$_2$ using a radiotracer technique. The $\alpha$-particles from the $^{8}$Li decay provide a
Externí odkaz:
http://arxiv.org/abs/1810.12537
Autor:
Junginger, T., Abidi, S. H., Astley, R., Buck, T., Dehn, M., Gheidi, S., Kiefl, R., Kolb, P., Storey, D., Thoeng, E., Wasserman, W., Laxdal, R. E
Publikováno v:
Phys. Rev. Accel. Beams 21, 032002 (2018)
The performance of superconducting radiofrequency (SRF) cavities used for particle accelerators depends on two characteristic material parameters: field of first flux entry $H_{entry}$ and pinning strength. The former sets the limit for the maximum a
Externí odkaz:
http://arxiv.org/abs/1705.05480
Autor:
Schlimme, B. S., Achenbach, P., Aulenbacher, K., Baunack, S., Bender, D., Beričič, J., Bosnar, D., Correa, L., Dehn, M., Distler, M. O., Esser, A., Fonvieille, H., Friščić, I., Gutheil, B., Herrmann, P., Hoek, M., Kegel, S., Kohl, Y., Kolar, T., Kreidel, H. -J., Maas, F., Merkel, H., Mihovilovič, M., Müller, J., Müller, U., Nillius, F., Nuck, A., Pochodzalla, J., Schoth, M., Schulz, F., Sfienti, C., Širca, S., Spruck, B., Štajner, S., Thiel, M., Tioukine, V., Tyukin, A., Weber, A.
For the first time a vertically polarized electron beam has been used for physics experiments at MAMI in the energy range between 180 and 855 MeV. The beam-normal single-spin asymmetry $A_{\mathrm{n}}$, which is a direct probe of higher-order photon
Externí odkaz:
http://arxiv.org/abs/1612.02863
Autor:
Nikolaev, A., Aguar-Bartolomé, P., Ahrens, J., Annand, J. R. M., Arends, H. J., Beck, R., Bekrenev, V., Boillat, B., Braghieri, A., Branford, D., Briscoe, W. J., Brudvik, J. W., Cherepnya, S., Codling, R., Dehn, M., Downie, E. J., Fil'kov, L. V., Glazier, D. I., Gregor, R., Heid, E., Hornidge, D., Jahn, O., Jankowiak, A., Kaiser, K. -H., Kashevarov, V. L., Kondratiev, R., Korolija, M., Kotulla, M., Krambrich, D., Krusche, B., Lang, M., Lisin, V., Livingston, K., Ludwig-Mertin, U., Lugert, S., MacGregor, I. J. D., Manley, D. M., Martinez-Fabregate, M., McGeorge, J. C., Mekterovic, D., Metag, V., Nefkens, B. M. K., Novotny, R., Owens, R. O., Pedroni, P., Polonski, A., Prakhov, S. N., Price, J. W., Reiter, A., Rosner, G., Rost, M., Rostomyan, T., Schumann, S., Sober, D., Starostin, A., Supek, I., Tarbert, C. M., Thomas, A., Unverzagt, M., Walcher, Th., Watts, D. P., Zehr, F.
A new precise determination of the {\eta} meson mass is presented. It is based on a measurement of the threshold for the {\gamma}p -> p{\eta} reaction using the tagger focal-plane microscope detector at the MAMI-B facility in Mainz. The tagger micros
Externí odkaz:
http://arxiv.org/abs/1207.3710
Autor:
Helling, Ch., Ackerman, A., Allard, F., Dehn, M., Hauschildt, P., Homeier, D., Lodders, K., Marley, M., Rietmeijer, F., Tsuji, T., Woitke, P.
The atmospheres of substellar objects contain clouds of oxides, iron, silicates, and other refractory condensates. Water clouds are expected in the coolest objects. The opacity of these `dust' clouds strongly affects both the atmospheric temperature-
Externí odkaz:
http://arxiv.org/abs/0809.3657
We aim to understand the correlation between cloud formation and alkali line formation in substellar atmospheres.We perform line profile calculations for Na I and K I based on the coupling of our kinetic model for the formation and composition of dus
Externí odkaz:
http://arxiv.org/abs/0801.3544
Autor:
Helling, Ch., Ackerman, A., Allard, F., Dehn, M., Hauschildt, P., Homeier, D., Lodders, K., Marley, M., Rietmeijer, F., Tsuji, T., Woitke, P.
A test case comparison is presented for different dust cloud model approaches applied in brown dwarfs and giant gas planets. We aim to achieve more transparency in evaluating the uncertainty inherent to theoretical modelling. We show in how far model
Externí odkaz:
http://arxiv.org/abs/0711.3993