Search Results - "Elmers, H.‐J."

Writing and reading antiferromagnetic Mn2Au by Néel spin-orbit torques and large anisotropic magnetoresistance by Bodnar, S. Yu, Šmejkal, L., Turek, I., Jungwirth, T., Gomonay, O., Sinova, J., Sapozhnik, A. A., Elmers, H.-J., Kläui, M., Jourdan, M.

“…Using antiferromagnets as active elements in spintronics requires the ability to manipulate and read-out the Néel vector orientation. Here we demonstrate for…”
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Readout of an antiferromagnetic spintronics system by strong exchange coupling of Mn2Au and Permalloy by Bommanaboyena, S. P., Backes, D., Veiga, L. S. I., Dhesi, S. S., Niu, Y. R., Sarpi, B., Denneulin, T., Kovács, A., Mashoff, T., Gomonay, O., Sinova, J., Everschor-Sitte, K., Schönke, D., Reeve, R. M., Kläui, M., Elmers, H.-J., Jourdan, M.

“…In antiferromagnetic spintronics, the read-out of the staggered magnetization or Néel vector is the key obstacle to harnessing the ultra-fast dynamics and…”
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Asymmetric electrostatic dodecapole: compact bandpass filter with low aberrations for momentum microscopy by Tkach, O., Chernov, S., Babenkov, S., Lytvynenko, Y., Fedchenko, O., Medjanik, K., Vasilyev, D., Gloskowskii, A., Schlueter, C., Elmers, H.-J., Schönhense, G.

“…Imaging energy filters in photoelectron microscopes and momentum microscopes use spherical fields with deflection angles of 90°, 180° and even 2 × 180°. These…”
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Manipulation of antiferromagnetic domain distribution in Mn2Au by ultrahigh magnetic fields and by strain by Sapozhnik, A. A., Abrudan, R., Skourski, Yu, Jourdan, M., Zabel, H., Kläui, M., Elmers, H.‐J.

“…Evidence for a spin reorientation in antiferromagnetic (AFM) Mn2Au thin films induced by high magnetic fields as well as by the application of in‐plane…”
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Direct 3D mapping of the Fermi surface and Fermi velocity by Medjanik, K., Fedchenko, O., Chernov, S., Kutnyakhov, D., Ellguth, M., Oelsner, A., Schönhense, B., Peixoto, T. R. F., Lutz, P., Min, C.-H., Reinert, F., Däster, S., Acremann, Y., Viefhaus, J., Wurth, W., Elmers, H. J., Schönhense, G.

“…We performed a full mapping of the bulk electronic structure including the Fermi surface and Fermi-velocity distribution v F ( k F ) of tungsten. The 4D…”
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Circular dichroism in hard X-ray photoelectron diffraction observed by time-of-flight momentum microscopy by Tkach, O., Vo, T.-P., Fedchenko, O., Medjanik, K., Lytvynenko, Y., Babenkov, S., Vasilyev, D., Nguyen, Q.L., Peixoto, T.R.F., Gloskowskii, A., Schlueter, C., Chernov, S., Hoesch, M., Kutnyakhov, D., Scholz, M., Wenthaus, L., Wind, N., Marotzke, S., Winkelmann, A., Rossnagel, K., Minár, J., Elmers, H.-J., Schönhense, G.

“…•Experimental and theoretical results of CDAD for several core levels (Si, Ge, Mo and W) are discussed and compared.•X-ray CDAD asymmetries are very large, up…”
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Néel Vector Induced Manipulation of Valence States in the Collinear Antiferromagnet Mn2Au by Elmers, H J, Chernov, S V, D'Souza, S W, Bommanaboyena, S P, Bodnar, S Yu, Medjanik, K, Babenkov, S, Fedchenko, O, Vasilyev, D, Agustsson, S Y, Schlueter, C, Gloskovskii, A, Matveyev, Yu, Strocov, V N, Skourski, Y, Šmejkal, L, Sinova, J, Minár, J, Kläui, M, Schönhense, G, Jourdan, M

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Emitter-site specificity of hard x-ray photoelectron Kikuchi-diffraction by Fedchenko, O, Winkelmann, A, Chernov, S, Medjanik, K, Babenkov, S, Agustsson, S Y, Vasilyev, D, Hoesch, M, Elmers, H-J, Schönhense, G

“…High-resolution full-field imaging of (kx, ky) photoelectron distributions (k-resolution 0.03 Å−1, angular resolution 0.03° at 6.7 keV) in a large field of…”
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High-resolution hard-x-ray photoelectron diffraction in a momentum microscope-the model case of graphite by Fedchenko, O, Winkelmann, A, Medjanik, K, Babenkov, S, Vasilyev, D, Chernov, S, Schlueter, C, Gloskovskii, A, Matveyev, Yu, Drube, W, Schönhense, B, Elmers, H J, Schönhense, G

“…Hard x-ray photoelectron diffraction (hXPD) patterns recorded with a momentum microscope with high k-resolution (0.025 Å−1 equivalent to an angular resolution…”
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Momentum-transfer model of valence-band photoelectron diffraction by Schönhense, G., Medjanik, K., Babenkov, S., Vasilyev, D., Ellguth, M., Fedchenko, O., Chernov, S., Schönhense, B., Elmers, H.-J.

“…Recent instrumental progress of valence-band photoemission in the X-ray range allows uncovering bulk- and surface-related electronic properties…”
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High-accuracy bulk electronic bandmapping with eliminated diffraction effects using hard X-ray photoelectron momentum microscopy by Babenkov, S., Medjanik, K., Vasilyev, D., Chernov, S., Schlueter, C., Gloskovskii, A., Matveyev, Yu, Drube, W., Schönhense, B., Rossnagel, K., Elmers, H.-J., Schönhense, G.

“…A key benefit of angle-resolved photoelectron spectroscopy (ARPES) in the X-ray range is the significant increase of the information depth, thanks to the large…”
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Large area conductive nanoaperture arrays with strong optical resonances and spectrally flat terahertz transmission by Krewer, K. L., Jiang, K., Bley, K., Jin, Z., Mics, Z., Weiss, C. K., Landfester, K., Elmers, H.-J., Bonn, M., Turchinovich, D.

“…Using simple and inexpensive nanosphere lithography, we produce large, centimeter-squared sized thin golden films patterned with a hexagonal array of…”
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Multi-MHz time-of-flight electronic bandstructure imaging of graphene on Ir(111) by Tusche, C., Goslawski, P., Kutnyakhov, D., Ellguth, M., Medjanik, K., Elmers, H. J., Chernov, S., Wallauer, R., Engel, D., Jankowiak, A., Schönhense, G.

“…In the quest for detailed spectroscopic insight into the electronic structure at solid surfaces in a large momentum range, we have developed an advanced…”
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Test of band structure calculations for Heusler compounds by spin-resolved photoemission spectroscopy by Kolbe, M., Chadov, S., Jorge, E. Arbelo, Schönhense, G., Felser, C., Elmers, H.-J., Kläui, M., Jourdan, M.

“…The electronic density of states of epitaxial thin films of the Heusler compound Co sub(2) MnGa is probed in situ by spin-resolved ultraviolet photoemission…”
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4D texture of circular dichroism in soft-x-ray photoemission from tungsten by Fedchenko, O, Medjanik, K, Chernov, S, Kutnyakhov, D, Ellguth, M, Oelsner, A, Schönhense, B, Peixoto, T R F, Lutz, P, Min, C-H, Reinert, F, Däster, S, Acremann, Y, Viefhaus, J, Wurth, W, Braun, J, Minár, J, Ebert, H, Elmers, H J, Schönhense, G

“…Photoemission-intensity distributions IRCP/LCP (EB, k) measured for right- and left-circularly polarized soft x-rays revealed a large circular dichroism in…”
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Highly efficient multichannel spin-polarization detection by Kolbe, M, Lushchyk, P, Petereit, B, Elmers, H J, Schönhense, G, Oelsner, A, Tusche, C, Kirschner, J

“…Since the original work by Mott, the low efficiency of electron spin polarimeters, remaining orders of magnitude behind optical polarimeters, has prohibited…”
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Spin texture of time-reversal symmetry invariant surface states on W(110) by Kutnyakhov, D., Chernov, S., Medjanik, K., Wallauer, R., Tusche, C., Ellguth, M., Nepijko, S. A., Krivenkov, M., Braun, J., Borek, S., Minár, J., Ebert, H., Elmers, H. J., Schönhense, G.

“…We find in the case of W(110) previously overlooked anomalous surface states having their spin locked at right angle to their momentum using spin-resolved…”
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Strain detection in non-magnetic steel by Kerr-microscopy of magnetic tracer layers by Jourdan, M., Krämer, M.M.B., Kläui, M., Elmers, H.-J., Deldar, S., Smaga, M., Beck, T.

“…•Tracer layers for magneto-optical characterization of strain in nonmagnetic steel.•Characteristic domain patterns around strain creating indentations.•Strain…”
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Epitaxial films of the magnetic shape memory material Ni2MnGa by JAKOB, G, ELMERS, H. J

“…By DC-sputtering from a stoichiometric target onto sapphire substrates we prepared epitaxial films of Ni2MnGa. X-ray diffraction in two circle geometry shows…”
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Multidimensional photoemission spectroscopy-the space-charge limit by Schönhense, B, Medjanik, K, Fedchenko, O, Chernov, S, Ellguth, M, Vasilyev, D, Oelsner, A, Viefhaus, J, Kutnyakhov, D, Wurth, W, Elmers, H J, Schönhense, G

“…Photoelectron spectroscopy, especially at pulsed sources, is ultimately limited by the Coulomb interaction in the electron cloud, changing energy and angular…”
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