Daniel Spemann

Spemann, Daniel

Dr. rer. nat.

Daniel Spemann

Wissenschaftlicher Mitarbeiter

+49 341 235 - 2681
+49 341 235 - 2313


M. Stiller, J. Barzola-Quiquia, P. Esquinazi, D. Spemann, J. Meijer, M. Lorenz, M. Grundmann.
Strong out-of-plane magnetic anisotropy in ion irradiated anatase TiO2 thin films.
AIP Adv. 6, 125009:1-13 (2016).
DOI: 10.1063/1.4971794.

Christian E. Precker, Pablo D. Esquinazi, Ana Champi, José Barzola-Quiquia, Mahsa Zoraghi, Santiago Muiños-Landin, Annette Setzer, Winfried Böhlmann, Daniel Spemann, Jan Meijer, Tom Muenster, Oliver Baehre, Gert Kloess, Henning Beth.
Identification of a possible superconducting transition above room temperature in natural graphite crystals.
arXiv: 1606.09425 [cond-mat.supr-con].
New J. Phys. 18, 113041:1-18 (2016).
DOI: 10.1088/1367-2630/18/11/113041.

I. Lorite, C. Zandalazini, P. Esquinazi, D. Spemann, S. Friedländer, A. Pöppl, T. Michalsky, M. Grundmann, J. Vogt, J. Meijer, S.P. Heluani, H. Ohldag, W.A. Adeagbo, S.K. Nayak, W. Hergert, A. Ernst, M. Hoffmann.
Study of the negative magneto-resistance of single proton-implanted lithium-doped ZnO microwires.
arXiv: 1504.08230 [cond-mat.mtrl-sci].
J. Phys.: Condens. Matter 27, 256002:1-6 (2015).
DOI: 10.1088/0953-8984/27/25/256002.

J. van Donkelaar, C. Yang, A.D.C. Alves, J.C. McCallum, C. Hougaard, B.C. Johnson, F.E. Hudson, A.S. Dzurak, A. Morello, D. Spemann, D.N. Jamieson.
Single atom devices by ion implantation.
J. Phys.: Condens. Matter 27, 154204:1-9 (2015).
DOI: 10.1088/0953-8984/27/15/154204.

J. Barzola-Quiquia, P. Esquinazi, M. Lindel, D. Spemann, M. Muallem, G.D. Nessim.
Magnetic order and superconductivity observed in bundles of double-wall carbon nanotubes.
arXiv: 1503.00579 [cond-mat.str-el].
Carbon 88, 16-25 (2015).
DOI: 10.1016/j.carbon.2015.02.062.

J. Barzola-Quiquia, T. Lehmann, M. Stiller, D. Spemann, P. Esquinazi, P. Häussler.
Topological insulator thin films starting from the amorphous phase - Bi2Se3 as example.
arXiv: 1502.01135 [cond-mat.mtrl-sci].
J. Appl. Phys. 117, 075301:1-7 (2015).
DOI: 10.1063/1.4908007.

D. Spemann, P. Esquinazi, A. Setzer, W. Böhlmann.
Trace element content and magnetic properties of commercial HOPG samples studied by ion beam microscopy and SQUID magnetometry.
arXiv: 1310.3056 [cond-mat.mtrl-sci].
AIP Advances 4, 107142:1-15 (2014).
DOI: 10.1063/1.4900613.

Rolf Böttcher, Andreas Pöppl, Michael Lorenz, Stefan Friedländer, Daniel Spemann, Marius Grundmann.
55Mn pulsed ENDOR spectroscopy of Mn2+ ions in ZnO thin films and single crystal.
J. Magn. Reson. 245, 79-86 (2014).
DOI: 10.1016/j.jmr.2014.05.012.

Xiangyan Zhou, Marco Dorn, Jürgen Vogt, Daniel Spemann, Wei Yu, Zhengwei Mao, Irina Estrela-Lopis, Edwin Donath, Changyou Gao.
A quantitative study of the intracellular concentration of graphene/noble metal nanoparticle composites and their cytotoxicity.
Nanoscale 6, 8535-8542 (2014).
DOI: 10.1039/c4nr01763c.

Michael Lorenz, Rolf Böttcher, Stefan Friedländer, Andreas Pöppl, Daniel Spemann, Marius Grundmann.
Local lattice distortions in oxygen deficient Mn-doped ZnO thin films, probed by electron paramagnetic resonance.
J. Mater. Chem. C 2, 4947-4956 (2014).
DOI: 10.1039/C4TC00407H.

Carsten Stüber, Markus Morawski, Andreas Schäfer, Christian Labadie, Miriam Wähnert, Christoph Leuze, Markus Streicher, Nirav Barapatre, Katja Reimann, Stefan Geyer, Daniel Spemann, Robert Turner.
Myelin and iron concentration in the human brain: A quantitative study of MRI contrast.
NeuroImage 93, 95-106 (2014).
DOI: 10.1016/j.neuroimage.2014.02.026.

Martin Engler, Frank Frost, Sven Müller, Sven Macko, Moritz Will, René Feder, Daniel Spemann, René Hübner, Stefan Facsko, Thomas Michely.
Silicide induced ion beam patterning of Si(001).
Nanotechnol. 25, 115303:1-18 (2014).
DOI: 10.1088/0957-4484/25/11/115303.

P. Esquinazi, W. Hergert, D. Spemann, A. Setzer, A. Ernst.
Defect-Induced Magnetism in Solids.
arXiv: 1304.0137 [cond-mat.mtrl-sci].
IEEE Trans. Magn. 46, 4668-4674 (2013).
DOI: 10.1109/TMAG.2013.2255867.

J. Zippel, M. Lorenz, A. Setzer, M. Rothermel, D. Spemann, P. Esquinazi, M. Grundmann, G. Wagner, R. Denecke, A.A. Timopheev.
Defect-induced magnetism in homoepitaxial manganese-stabilized zirconia thin films.
J. Phys. D: Appl. Phys. 46, 275002:1-10 (2013).
DOI: 10.1088/0022-3727/46/27/275002.

N. Klingner, J. Vogt, D. Spemann.
Optimizing the Rutherford Backscattering Spectrometry setup in a nuclear microprobe.
Nucl. Instrum. Meth. Phys. Res. B 306, 44-48 (2013).
DOI: 10.1016/j.nimb.2012.12.062.

D. Diering, D. Spemann, J. Lenzner, St. Müller, T. Böntgen, H. von Wenckstern.
Greyscale Proton Beam Writing in p-type Gallium Arsenide.
Nucl. Instrum. Meth. Phys. Res. B 306, 275-280 (2013).
DOI: 10.1016/j.nimb.2012.11.049.

Michael Lorenz, Christian Schmidt, Gabriele Benndorf, Tammo Böntgen, Holger Hochmuth, Rolf Böttcher, Andreas Pöppl, Daniel Spemann, Marius Grundmann.
Degenerate interface layers in epitaxial Scandium-doped ZnO thin films.
J. Phys. D: Appl. Phys. 46, 065311:1-10 (2013).
DOI: 10.1088/0022-3727/46/6/065311.

Matthias Brandt, Michael Bonholzer, Marko Stölzel, Gabriele Benndorf, Daniel Spemann, Michael Lorenz, 
Marius Grundmann.
Electrical transport in strained MgxZn1-xO:P thin films grown by pulsed laser deposition on ZnO(000-1).
phys. stat. sol. (b) 249, 82 (2012).
DOI: 10.1002/pssb.201147212

Florian Schmidt, Holger von Wenckstern, Daniel Spemann, Marius Grundmann.
On the radiation hardness of (Mg,Zn)O thin films grown by pulsed-laser deposition.
Appl. Phys. Lett. 101, 012103 (2012).
DOI: 10.1063/1.4733358

D. Spemann, T. Reinert, J. Vogt, T. Andrea, N. Barapatre, R. Feder, A.M. Jakob,
N. Liebing, Ch. Meinecke, F. Menzel, M. Rothermel, T. Butz
Materials Analysis and Modification at LIPSION - Present State and Future Developments,
Nucl. Instr. and Meth. B (2011)  Volume 269  Pages 2175-2179
DOI: 10.1016/j.nimb.2011.02.054

F. Menzel, D. Spemann, T. Koal, T. Butz
3D-structures with Arbitrary Shapes Created in Negative Resists by Grayscale Proton Beam Writing,
Nucl. Instr. and Meth. B (2011)  Volume 269  Pages 2427.2430
DOI: 10.1016/j.nimb.2011.02.060

F. Menzel, D. Spemann, T. Butz
High-aspect Ratio Microstructures in p-type GaAs and InP Created by Proton Beam Writing,
Nucl. Instr. and Meth. B (2011)  Volume 269  Pages 2457-2461
DOI: 10.1016/j.nimb.2011.02.061

A.M. Jakob, D. Spemann, R. Thies, J. Barzola-Quiquia, J. Vogt, T. Butz
A Characterisation of Electronic Properties of Alkaline-texturized Polycrystalline Silicon Solar Cells Using IBIC,
Nucl. Instr. and Meth. B (2011)  Volume 269  Pages 2345-2349
DOI: 10.1016/j.nimb.2011.02.040

T. Reinert, N. Barapatre, A. Reinert, D. Spemann, T. Andrea, W. Larisch, Ch. Meinecke, T. Koal, R. Werner,
M. Hohlweg, J. Vogt, T. Butz
Biomedical Research at LIPSION - Present State and Future Developments,
Nucl. Instr. and Meth. B (2011)  Volume 269  Pages 2254-2259
DOI: 10.1016/j.nimb.2011.02.071

M. Khalid, P. Esquinazi, D. Spemann, W. Anwand, G. Brauer.
Hydrogen-mediated ferromagnetism in ZnO single crystals.
arXiv: 1104.1899 [cond-mat.str-el].
New J. Phys. 13, 063017:1-7 (2011).
DOI: 10.1088/1367-2630/13/6/063017.

T. Butz, T. Reinert, D. Spemann
Nucl. Instr. and Meth. B 20 (2011) V-VI
DOI: 10.1016/j.nimb.2011.08.006

P. Esquinazi, J. Barzola-Quiquia, D. Spemann, M. Rothermel, H. Ohldag, N. Garcia, A. Setzer, T. Butz.
Magnetic order in Graphite: Experimental evidence, intrinsic and extrinsic difficulties.
J. Magn. Magn. Mater. 322 (2010) 1156-1161
DOI: 10.1016/j.jmmm.2009.06.038

M. Dubman, T. Shiroka, H. Luetkens, M. Rothermel, F.J. Litterst, E. Morenzoni, A. Suter, D. Spemann, P. Esquinazi, A. Setzer, T. Butz.
Low-energy µSR and SQUID evidence of magnetism in highly oriented pyrolytic graphite.
J. Magn. Magn. Mater. 322 (2010) 1228-1231
DOI: 10.1016/j.jmmm.2009.04.023

M. Lorenz, H. Hochmuth, Ch. Grüner, H. Hilmer, A. Lajn, D. Spemann, M. Brandt, J. Zippel, H. von Wenckstern, M. Grundmann.
Oxide thin film heterostructures with large-area, flexible doping, reduced dislocation density and smooth interfaces -- grown by Pulsed  Laser Deposition.
Laser Chemistry 2010 (2010) 140976
DOI: 10.1155/2010/140976

H. Ohldag, P. Esquinazi, E. Arenholz, D. Spemann, M. Rothermel, A. Setzer, T. Butz.
The role of hydrogen in room-temperature ferromagnetism at graphite  surfaces.
arXiv: 0905.4315 [cond-mat.mtrl-sci].
New J. Phys. 12, 123012:1-10 (2010).
DOI: 10.1088/1367-2630/12/12/123012.

D. Spemann, V. Gottschalch.
Boron lattice site location in (BGa)As and (BGa)P thin films studied using RBS and NRA with a channeled He+ ion beam.
Nucl. Instr. and Meth. in Phys. Res. B 268 (2010) 2069-2073 
DOI: 10.1016/j.nimb.2010.02.028

M. Khalid, A. Setzer, M. Ziese, P. Esquinazi, D. Spemann, A. Pöppl, E. Goering.
Ubiquity of ferromagnetic signals in common diamagnetic oxide crystals.
Phys. Rev. B 81 (2010) 214414
DOI: 10.1103/PhysRevB.81.214414

J. Barzola-Quiquia, P. Esquinazi, M. Rothermel, D. Spemann, T. Butz.
Magnetic order in proton irradiated graphite: Curie temperatures and magnetoresistance effects.
J. Nucl. Mater. 389 (2009) 336-340
DOI: 10.1016/j.jnucmat.2009.02.024

F. Menzel, D. Spemann, J. Lenzner, W. Böhlmann, G. Zimmermann, T. Butz.
Fabrication of microstructures in III--V semiconductors by proton beam writing.
Nucl. Instr. and Meth. in Phys. Res. B 267 (2009) 2321-2326

M. Khalid, M. Ziese, A. Setzer, P. Esquinazi, M. Lorenz, H. Hochmuth, M. Grundmann, D. Spemann, T. Butz, G. Brauer, W. Anwand, G. Fischer, W.A. Adeagbo, W. Hergert, A. Ernst.
Defect-induced magnetic order in pure ZnO films.
Phys. Rev. B 80 (2009) 035331
DOI: 10.1103/PhysRevB.80.035331

P. Esquinazi, J. Barzola-Quiquia, D. Spemann, M. Rothermel, H. Ohldag, N. Garcia, A. Setzer, T. Butz.
Magnetic Order in Graphite: Experimental Evidence, Intrinsic and Extrinsic Difficulties.
arXiv: 0902.1671 [cond-mat.str-el].
ChemInform 40, (2009).
DOI: 10.1002/chin.200952217.

R. Höhne, P. Esquinazi, V. Heera, H. Weishart, A. Setzer, D. Spemann.
The influence of iron, fluorine and boron implantation on the magnetic properties of graphite.
J. Magn. Magn. Mater. 320 (2008) 966-977
DOI: 10.1016/j.jmmm.2007.09.019

F. Menzel, D. Spemann, J. Lenzner,W. Böhlmann, G. Zimmermann and T. Butz
Creation of GaAs microstructures using the nuclear nanoprobe LIPSION.
Semicond. Sci. Technol. 23 (2008) 125028
DOI: 10.1088/0268-1242/23/12/125028

letzte Änderung: 08.02.2017


Abteilung Nukleare Festkörperphysik
Universität Leipzig
Fakultät für Physik und Geowissenschaften
Felix-Bloch-Institut für Festkörperphysik
Linnéstraße 5
04103 Leipzig

Telefon: +49 341 97 - 32700
Telefax: +49 341 97 - 32748