R.Doerfler, O.Leupold, D.L.Nagy, G.Ritter, H.Spiering, R.Zimmermann
Ligand Field and Hyperfine Interaction of the Fe(HO)
Complex in Different Compounds
Hyperfine Interactions 15/16, 831 (1983)
R.Doerfler, W.Gruber, P.Gütlich, K.M.Hasselbach, O.Leupold,
B.Molnar, D.L.Nagy,
G.Ritter, H.Spiering, F.Tuczek
Mössbauer Spectroscopic Evidence of Angle-dependent
Intersystem Crossing in LiNbO:Fe
Phys. Rev. Lett. 57, 2849 (1986)
H.Domes, O.Leupold, D.L.Nagy, G.Ritter, H.Spiering,
B.Molnar, I.S.Szücs
Mössbauer Study of Short Range Order in Frozen Aqueous
Solutions of Fe(ClO)
J. Chem. Phys. 85, 7294 (1986)
M.Billenstein, R.Doerfler, O.Leupold, D.L.Nagy, G.Ritter
Ligand Field and Hyperfine Interaction of Fe
in
LiNbO
- A Mössbauer Absorption Study at Low
Temperatures
in High Magnetic Fields
Hyperfine Interactions 47, 446 (1989)
R.Doerfler, W.Gruber, D.Horvath, O.Leupold, B.Molnar, D.L.Nagy,
G.Ritter, I.S.Szücs, N.Zeman
Non-equilibrium Population of Fe Electronic States
After the Electron Capture in LiNbO
:
Co
Hyperfine Interactions 47, 592 (1989)
E.Giesse, O.Leupold, B.Molnar, D.L.Nagy, G.Ritter
Non-equilibrium Population of the Zeeman-Substates of the S
Ground States of
Fe
- A Mössbauer
Emission Study on
LiTaO
:
Co Single Crystals in
Magnetic Fields
Hyperfine Interactions 47, 594 (1989)
O.Leupold, M.Billenstein, E.Giesse, W.Gruber, B.Molnar,
D.L.Nagy, G.Ritter, U.Röhlich
Non-equilibrium Population and Slow Relaxation of Fe
in
Co:LiNbO
and
Co:LiTaO
Single Crystals
Hyperfine Interactions 56, 1539 (1990)
U.Röhlich, E.Giesse, O.Leupold, B.Molnar, D.L.Nagy,
G.Ritter
Temperature Dependence of the Anomalous Emission Line
Intensities in Co:LiTaO
- Initial
Population and Relaxation
Hyperfine Interactions 56, 1545 (1990)
E.Giesse, W.Gruber, O.Leupold, B.Molnar, D.L.Nagy, G.Ritter
Non-equilibrium Population of Fe Electronic States
After the Electron Capture in
Co:LiTaO
Hyperfine Interactions 56, 1519 (1990)
H.Dengler, O.Leupold, D.L.Nagy, G.Ritter, F.Aubertin,
C.T.Limbach, U.Gonser
Distribution of Hyperfine Fields of Fe in
Amorphous
LiNbO
: Mössbauer Study at Low Temperatures in
High
Magnetic Fields
Hyperfine Interactions 69, 667 (1991)
R.Röhlsberger, E.Gerdau, M.Harsdorff, O.Leupold, E.Lüken,
J.Metge, R.Rüffer, H.D.Rüter, W.Sturhahn, E.Witthoff
Broad-Band Nuclear Resonant Filters for Synchrotron Radiation:
a New Source for Nuclear Diffraction Experiments
Europhysics Letters 18, 561 (1992)
R.Röhlsberger, E.Gerdau, E.Lüken, H.D.Rüter, J.Metge,
O.Leupold
Nuclear Diffraction Experiments with Grazing Incidence
Antireflection Films
Z.Phys.B92, 489 (1993)
Yu.V.Shvyd'ko, A.I.Chumakov, G.V.Smirnov, V.Kohn,
T.Hertrich, U.vanBürck, E.Gerdau, H.D.Rüter, J.Metge,
O.Leupold
Nuclear Bragg Diffraction of Synchrotron Radiation in the
Presence of Acoustic Vibrations
Europhysics Letters 22, 305 (1993)
R.Rüffer, A.I.Chumakov, H.Grünsteudel,
H.F.Grünsteudel,
G.Grübel, O.Leupold, J.Metge, H.J.Hesse, G.Wortmann, H.A.Goodwin
neV Energy Resolution and Sub-ns Timing Resonant Nuclear Scattering
ESRF Newsletter 22,12 (1994)
R.Röhlsberger, O.Leupold, J.Metge, H.D.Rüter,
W.Sturhahn, E.Gerdau
Nuclear Forward Scattering of Synchrotron Radiation from
Unmagnetized -
Fe
Hyperfine Interactions 92, 1107 (1994)
O.Leupold, D.L.Nagy, G.Ritter
Relaxation Within the Electronic Ground State of the Ferrous Ion in
[Fe(HO)
]K
(SO
)
Single Crystals at
Low Temperatures
Hyperfine Interactions 93, 1553 (1994)
Yu.V.Shvyd'ko, A.I.Chumakov, G.V.Smirnov, T.Hertrich,
U.vanBürck,
H.D.Rüter,
O.Leupold, J.Metge, E.Gerdau,
Fast Switching of Nuclear Bragg Scattering of Synchrotron
Radiation by a Pulsed Magnetic Field
Europhysics Letters 26, 215 (1994)
Yu.V.Shvyd'ko, T.Hertrich, J.Metge, O.Leupold, E.Gerdau,
H.D.Rüter
Reversed Time in Mössbauer Spectra
Phys. Rev. B52, R711 (1995)
H.Winkler, O.Leupold, H.Grünsteudel, W.Meyer,
H.F.Grünsteudel, E.Realo, A.X.Trautwein, E.Gerdau,
D.Mandon, R.Weiss
Mössbauer Spectroscopy with Synchrotron Radiation
Journal of Inorganic Biochemistry 59, 327 (1995)
A.I.Chumakov, R.Rüffer, H.Grünsteudel,
H.F.Grünsteudel,
G.Grübel, J.Metge, O.Leupold, H.A.Goodwin
Energy Dependence of Nuclear Recoil Measured with Incoherent
Nuclear Scattering of Synchrotron Radiation
Europhysics Letters 30, 427 (1995)
Yu.V.Shvyd'ko, T.Hertrich, U.vanBürck, E.Gerdau, O.Leupold,
J.Metge, H.D.Rüter,
S.Schwendy, G.V.Smirnov, W.Potzel,
P.Schindelmann
Storage of Nuclear Excitation Energy through Magnetic Switching
Phys. Rev. Lett. 77, 3232 (1996)
O.Leupold, J.Pollmann, E.Gerdau, H.D.Rüter, G.Faigel, M.Tegze,
G.Bortel, R.Rüffer,
A.I.Chumakov, A.Q.R.Baron
Nuclear Resonance Scattering of Synchrotron Radiation at the
21.5keV Resonance of Eu
Europhysics Letters 35, 671 (1996)
A.Q.R.Baron, A.I.Chumakov, R.Rüffer, H.Grünsteudel,
H.F.Grünsteudel, O.Leupold
Single Nucleus Quantum Beats Excited by Synchrotron Radiation
Europhysics Letters 34, 331 (1996)
E.Realo, M.Haas, W.Meyer, O.Leupold, H.Winkler, H.Grünsteudel,
H.F.Grünsteudel,
J.Metge, E.Gerdau, A.X.Trautwein
A Spin-Hamiltonian System in the Time Domain: Nuclear Resonant
Forward Scattering by the Ferrous High-Spin Iron in Fe(CHCO
)(TP
P)
Conference Proceedings Italian Phys. Soc. 50
(ed. E.Ortalli), 857 (1996)
O.Leupold, H.Grünsteudel, W.Meyer, H.F.Grünsteudel,
H.Winkler,
D.Mandon, H.D.Rüter, J.Metge, E.Realo, E.Gerdau, A.X.Trautwein
Nuclear Resonant Forward Scattering of Synchrotron Radiation by
the Synthetic Iron Porphyrin [FeO(SC
HF
)(TP
P)]
Conference Proceedings Italian Phys. Soc. 50
(ed. E.Ortalli), 861 (1996)
H.F.Grünsteudel, H.J.Hesse, A.I.Chumakov, H.Grünsteudel,
O.Leupold, J.Metge, R.Rüffer, G.Wortmann
The -Fe/
-Fe Transition as an
Example of Nuclear
Forward Scattering on
Fe under High Pressure
Hyperfine Interactions C1, 509 (1996)
D.L.Nagy, L.Bottyan, L.Deak, E.Gerdau, V.N.Gittsovich,
J.Korecki, O.Leupold, H.Reuther, V.G.Semenov, E.Szilagyi
Synchrotron Radiation Reflectometry: Feasibility of Depth
Selective Phase Analysis of Thin Films and Multilayers
XXXII. Zakopane School of Physics, (1997)
E.Szilagyi, L.Bottyan, L.Deak, E.Gerdau, V.N.Gittsovich,
A.Grof, E.Kotai, O.Leupold, D.L. Nagy, V.G.Semenov
Corrosion Depth Profiles by Rutherford Backscattering
Spectrometry and Synchrotron X-Ray Reflectometry
Materials Science Forum Vols. 248-249, 365 (1997)
H.Grünsteudel, W.Meyer-Klaucke, A.X.Trautwein, H.Winkler,
O.Leupold, J.Metge, E.Gerdau, H.D.Rüter, A.Q.R.Baron,
A.I.Chumakov, H.F.Grünsteudel, R.Rüffer, M.Haas,
E.Realo,
D.Mandon, R.Weiss, H.Toftlund
Mössbauer Spectroscopy with Synchrotron Radiation
in A.X.Trautwein (Ed.) - ``Bioinorganic Chemistry: Transition
Metals in Biology and their Coordination Chemistry'', pp. 760-767,
Wiley-VCH (1997)
H.Jex, A.Ludwig, F.J.Hartmann, E.Gerdau, O.Leupold
Ultrasound Induced Echoes in the Nuclear Exciton Decay Utilising
Synchrotron Radiation Bragg Scattered by a Quartz Crystal
Europhysics Letters 40, (1997)
H.Jex, A.Ludwig, F.J.Hartmann, E.Gerdau, O.Leupold
Ultrasound-Induced Echoes and Quantum Beats Observed in the Nuclear
Exciton Decay Utilizing Synchrotron Radiation
J. Luminescence 76&77, 83 (1998)
A.X.Trautwein, H.Winkler, S.Schwendy, H.Grünsteudel,
W.Meyer-Klaucke, O.Leupold,
H.D.Rüter, E.Gerdau,
M.Haas, E.Realo, D.Mandon, R.Weiss
Iron Porphyrins Reinvestigated by a New Method: Mössbauer
Spectroscopy Using Synchrotron Radiation
Pure and Applied Chemistry 70, 917 (1998)
Yu.V.Shvyd'ko, U.vanBürck, W.Potzel, P.Schindelmann,
E.Gerdau, O.Leupold, J.Metge, H.D.Rüter, G.V.Smirnov
Hybrid Beat in Nuclear Forward Scattering of Synchrotron
Radiation
Phys. Rev. B57, 3552 (1998)
Yu.V.Shvyd'ko, E.Gerdau, J.Jäschke, O.Leupold, M.Lucht,
H.D.Rüter
Exact Bragg Backscattering of X rays
Phys. Rev. B57, 4968 (1998)
H.F.Grünsteudel, H.J.Hesse, R.Rüffer, G.Wortmann,
A.I.Chumakov, A.Q.R.Baron, H.Grün-steudel, O.Leupold, J.Metge
Spatial Distribution of Magnetic and Nonmagnetic Phases in Nuclear
Forward Scattering of Synchrotron Radiation
Australian Journal of Physics 51, 453 (1998)
O.Leupold, A.Bernhard, E.Gerdau, J.Jäschke, H.D.Rüter,
Yu.Shvyd'ko, H.deWaard, E.E.Alp, P.Hession, M.Hu, W.Sturhahn, J.Sutter,
T.Toellner,
A.I.Chumakov, J.Metge, R.Rüffer
Relaxation Experiments with Synchrotron Radiation
Invited talk at the ``International Conference on the
Applications of the Mössbauer Effect'' (ICAME'97)
Hyperfine Interactions 113, 81 (1998)
H.Winkler, W.Meyer-Klaucke, S.Schwendy, A.X.Trautwein,
B.F.Matzanke, O.Leupold, H.D. Rüter, M.Haas, E.Realo,
D.Mandon, R.Weiss
Relaxation as seen by Nuclei: Comparison between Conventional
Mössbauer
Spectra and Nuclear Resonant Scattering of Synchrotron Radiation
Hyperfine Interactions 113, 433 (1998)
O.Leupold, E.Gerdau, M.Gerken, H.D.Rüter, R.Lübbers,
M.Pleines, M.Strecker, G. Wortmann, M.M.Abd-Elmeguid,
H.Winkelmann, J.Plessel, H.Micklitz, A.I.Chumakov,
J.Metge, R. Rüffer, G.Faigel, M.Tegze
Charge Fluctuations and Magnetism Studied with Nuclear Forward
Scattering at the Eu Resonance
ESRF Highlights, 36 (1997/1998)
H.Grünsteudel, M.Haas, O.Leupold, D.Mandon, B.F.Matzanke,
W.Meyer-Klaucke, H. Paulsen, E.Realo, H.D.Rüter,
A.X.Trautwein, R.Weiss, H.Winkler
Mössbauer Spectroscopy with Synchrotron Radiation: A New
Technique
Entering Biological Inorganic Chemistry
Inorg. Chimica Acta. 275-276, 334 (1998)
L.Deák, G.Bayreuther, L.Bottyán, E.Gerdau, J.Korecki,
E.I.Kornilov, H.J. Lauter, O.Leu-pold, D.L.Nagy,
A.V.Pertrenko, V.V.Pasyuk-Lauter, H.Reuther, E.Richter,
R. Röhlsberger, E.Szilágyi
Pure Nuclear Bragg Reflection of a Periodic Fe/
Fe
Multilayer
J.Appl.Phys.85, 1 (1999)
R.Röhlsberger, E.E.Alp, E.Gerdau, O.Leupold, K.W.Quast,
R.Rüffer, W.Sturhahn,
T.S. Toellner, E.Burkel
Techniques for Inelastic X-ray Spectroscopy with eV-Resolution
PhysicaB263-264, 574-576 (1999)
R.Lübbers, M.Pleines, H.-J.Hesse, G.Wortmann,
H.F.Grünsteudel, R.Rüffer, O.Leupold,
J.Zukrowski
Magnetism under High Pressure Studied by Fe
and
Eu Nuclear Scattering of Synchrotron Radiation
Hyperfine Interactions 120/121, 49 (1999)
M.Pleines, R.Lübbers, M.Strecker, G.Wortmann,
O.Leupold, Yu.V.Shvyd'ko, E.Gerdau,
J.Metge
Pressure-Induced Valence Transition in EuNiGe
Studied by
Eu Nuclear Forward
Scattering of Synchrotron Radiation
Hyperfine Interactions 120/121, 181 (1999)
O.Leupold, H.Winkler
Relaxation Experiments with Synchrotron Radiation
Review article, special issue of Hyperfine Interactions,
Eds.: E.Gerdau and H.deWaard
Hyperfine Interactions 123/124, 571 (1999)
O.Leupold, A.I.Chumakov, E.E.Alp, W.Sturhahn, A.Q.R.Baron
Noniron Isotopes
Review article, special issue of Hyperfine Interactions,
Eds.: E.Gerdau and H.deWaard
Hyperfine Interactions 123/124, 611 (1999)
U.vanBürck, W.Potzel, P.Schindelmann, Yu.V.Shvyd'ko,
E.Gerdau, O.Leupold, H.D.Rüter
Pulse Propagation of Synchrotron Radiation through a Nuclear
Two-Resonance System
Phys. Rev. A61, 013803 (2000)
R.Röhlsberger, T.S.Toellner, W.Sturhahn, K.W.Quast,
E.E.Alp, A.Bernhard, E.Burkel,
O.Leupold, E.Gerdau
Coherent Resonant X-Ray Scattering from a Rotating Medium
Phys. Rev. Lett. 84, 1007 (2000)
M.Haas, E.Realo, H.Winkler, W.Meyer-Klaucke, A.X.Trautwein,
O.Leupold
Paramagnetic Relaxation as Seen by Nuclear Resonant Forward
Scattering of Synchrotron Radiation
Phys. Rev. B61, 4155 (2000)
J.Dekoster, J.Meersschaut, B.Degroote, S.Degroote, C.L'abbé,
G.Koops, M.J.Prandolini, T.Phalet,
L.Vanneste, H.D.Pfannes, D.L.Nagy, L.Bottyan,
R.Rüffer, O.Leupold, G.Langouche
Step-Induced Canting of Magnetization in Fe/Ag Superlattices
Hyperfine Interactions 126, 349 (2000)
A.I.Chumakov, R.Rüffer, O.Leupold, A.Barla, H.Thiess,
T.Asthalter, B.P.Doyle, A.Snigirev, A.Q.R.Baron
High-Energy-Resolution X-ray Optics with Refractive Collimators
Applied Physics Letters 77, 31 (2000)
W.Potzel, U.vanBürck, P.Schindelmann, G.M.Kalvius,
G.V.Smirnov, E.Gerdau, Yu.V.Shvyd'ko, H.D.Rüter, O.Leupold
Investigation of Radiative Coupling and of Enlarged Decay
Rates of Nuclear Oscillators
Phys. Rev. A63, 043810 (2001)
I.A.Troyan, A.G.Gavrilyuk, V.A.Sarkisyan, I.S.Lyubutin,
R.Rüffer, O.Leupold, A.Barla,
B.Doyle, A.I.Chumakov
Transition from the Antiferromagnetic to a Nonmagnetic State in FeBO under High Pressure
JETP Letters 74, 24 (2001)
V.Senz, R.Röhlsberger, J.Bansmann, A.Bettac, K.L.Jonas,
O.Leupold, R.Rüffer, E.Burkel, K.H.Meiwes-Broer
Synchrotron-Based Mössbauer Spectroscopy at Iron Islands and
Clusters on Tungsten (110)
Lecture Notes in Physics 565, 382 (2001)
R.Röhlsberger, J.Bansmann, V.Senz, K.L.Jonas, A.Bettac,
O.Leupold, R.Rüffer, E.Burkel, K.H.Meiwes-Broer
Perpendicular Spin Orientation in Ultrasmall Fe Islands on W(110)
Phys. Rev. Lett. 86, 5597 (2001)
A.I.Chumakov, R.Rüffer, O.Leupold, A.Barla, H.Thiess,
T.Asthalter,
B.P.Doyle, A.A.Snigirev
A Refractive Collimator for High Resolution X-ray Optics
Poverkhnost 1, 33 (2001)
A.I.Chumakov, R.Rüffer, O.Leupold, A.Barla, H.Thiess,
J.M.Gil, H.V.Alberto, R.C.Vilao,
N.Ayres de Campos, V.G.Kohn, M.Gerken, M.Lucht
Nuclear Inelastic Scattering with Dy
Phys. Rev. B63, 172301 (2001)
M.Sladecek, B.Sepiol, M.Kaisermayr, J.Korecki, B.Handke,
H.Thiess, O.Leupold, R.Rüffer, G.Vogl
Enhanced Iron Self-Diffusion in the Near-Surface Region
Investigated
by Nuclear Resonant Scattering
Surface Science 507-510, 124 (2002)
D.L.Nagy, L.Bottyan, L.Deák, B.Degroote, O.Leupold, M.Major,
J.Meersschaut, R.Rüffer, E.Szilagyi, J.Swerts, K.Temst, A.Vantomme
Specular and off-Specular Synchrotron Mössbauer Reflectometry:
Applications to Thin Film Magnetism
Phys. Stat. Sol. (a) 189, 591 (2002)
L.Pasquini, A.Barla, A.I.Chumakov, O.Leupold,
R.Rüffer, A.Deriu, E.Bonetti
Size and Oxidation Effects on Vibrational Properties of
Nanocrystalline -Fe
Phys. Rev. B66, 073410 (2002)
A.Barla, J.P.Sanchez, B.Ni, B.P.Doyle, P.Vulliet, O.Leupold,
R.Rüffer, D.Kaczorowski,
J.Plessel, M.M.Abd-Elmeguid
Effect of Pressure on Magnetic Properties of U(InSn
)
:
Moment Suppression in U(In
Sn
)
Phys. Rev. B66, 094425 (2002)
D.L.Nagy, L.Bottyan, B.Croonenborghs, L.Deák, B.Degroote,
J.Dekoster, H.J.Lauter, V.Lauter-Pasyuk, O.Leupold, M.Major,
J.Meersschaut, O.Nikonov, A.Petrenko, R.Rüffer, H.Spiering,
E.Szilagyi
Coarsening of Antiferromagnetic Domains in Multilayers: the Key
Role of Magnetocrystalline Anisotropy
Phys. Rev. Lett. 88, 157202 (2002)
R.Röhlsberger, H.Thomas, K.Schlage, E.Burkel,
O.Leupold, R.Rüffer
Imaging the Magnetic Spin Structure of Exchange-Coupled Thin
Films
Phys. Rev. Lett. 89, 237201 (2002)
M.A.Andreeva, V.G.Semenov, B.Lindgren, L.Häggström,
B.Kalska, A.I.Chumakov, O.Leupold, R.Rüffer,
K.A.Prokhorov, N.N.Salashchenko
Interface Sensitive Investigation of Fe/Cr
Superstructure
by Means of Nuclear Resonance Standing Waves in Time Scale
Hyperfine Interactions 141/142, 119 (2002)
U.vanBürck, W.Potzel, P.Schindelmann, G.V.Smirnov,
S.L.Popov, E.Gerdau, Yu.V.Shvyd'ko, H.D.Rüter, O.Leupold
Inversion of Target Sequence in Nuclear Forward
Scattering of Synchrotron Radiation
Hyperfine Interactions 141/142, 151 (2002)
D.L.Nagy, L.Bottyan, L.Deak, B.Degroote, J.Dekoster,
O.Leupold, M.Major, J.Meersschaut, R.Rüffer,
E.Szilagyi, A.Vantomme
Off-Specular Synchrotron Mössbauer Refelectometry: A Novel
Tool
for Studying the Domain Structure in Antiferromagnetic Multilayers
Hyperfine Interactions 141/142, 459 (2002)
O.Leupold
Hyperfine Spectroscopy with Nuclear Resonant Scattering
of Synchrotron Radiation
Hyperfine Interactions 144/145, 21 (2002)
invited talk, review article
O.Leupold, A.I.Chumakov, R.Rüffer
Nuclear Resonant Scattering of Synchrotron Radiation
in: "Material Research in Atomic Scale by Mössbauer
Spectroscopy", Eds.: M.Miglierini, M.Mashlan, P.Schaaf, NATO Science
Series II: Mathematics, Physics and Chemistry - Vol. 94, p. 205,
(Kluwer Academic Publishers, Dordrecht, 2003)
invited talk, review article
O.Leupold, K.Rupprecht, G.Wortmann
Electronic and Magnetic Transitions in Europium Compounds
Studied by Nuclear Forward Scattering of Synchrotron Radiation
Structural Chemistry 14, 97 (2003)
review article
A.I.Chumakov, R.Rüffer, O.Leupold, I.Sergueev
Insight to Dynamics of Molecules with Nuclear Inelastic Scattering
Structural Chemistry 14, 109 (2003)
review article
V.Senz, R.Röhlsberger, J.Bansmann, O.Leupold,
K.H.Meiwes-Broer
Temperature Dependence of the Magnetization in Fe Islands on
W(110): Evidence for Spin-Wave Quantization
New Journal of Physics 5, 47.1 (2003)
R.Röhlsberger, J.Bansmann, V.Senz, K.L.Jonas,
A.Bettac, K.H.Meiwes-Broer, O.Leupold
Nanoscale Magnetism Probed by Nuclear Resonant
Scattering of Synchrotron Radiation
Phys. Rev. B67, 245412 (2003)
A.Barla, J.P.Sanchez, Y.Haga, G.Lapertot, B.P.Doyle,
O.Leupold, R.Rüffer, M.M.Abd-Elmeguid, R.Lengsdorf,
J.Flouquet
Pressure-Induced Magnetic Order in Golden SmS
Phys. Rev. Lett. 92, 066401 (2004)
A.I.Chumakov, R.Rüffer, O.Leupold, J.-P.Celse,
K.Martel, M.Rossat, W.-K.Lee
Performance of a Cryogenic Silicon Monochromator
Under Extreme Heat Load
J. Synchrotron Radiation (2004), in press