Dr. Axel Enders Dr. Ender's Web Page Dr. Ender's Web Page email: Dr. Enders NCMN Homepage

Dr. Axel Enders, Associate Professor
Physics & Astronomy
University of Nebraska - Lincoln
083 Jorgensen Hall
Lincoln, Nebraska 68588-0299
office: (402) 472-7055
lab: (402) 472-8850
email: axel@unl.edu
Enders website
MRSEC - Research Video, Nanophysics - on UNL Office of Research Video

Current Research

My experimental work is dedicated to the exploration of surface-supported self-assembled nanostructures. I expend considerable efforts to improve the control over the self-assembled growth beyond the state-of-the-art. Advanced materials, including metal nanostructures and molecular architectonic on metal surfaces, are engineered, almost atom-by-atom, molecule-by-molecule, to achieve superior properties for various applications.

I am exploring new concepts for magnetic data storage, which go beyond current thin film technologies. To this end, I am studying the magnetic anisotropy energy (MAE) at the sub-nanometer scale. This will contribute to an improved atomic-scale understanding of the MAE, which can greatly facilitate the engineering of advanced magnetic materials for extremely high-density magnetic recording. The work will also demonstrate self-assembled patterned media based on magnetic nanoclusters which, if applied in magnetic recording, would allow for unprecedented bit densities beyond several Terabit per square inch. Exploring the limit of magnetic storage density at room temperature is a key objective here.

 

 

 

The scanning tunneling microscopy image shows a monolayer of TPP molecules, formed by molecular selfassembly on a Ag(111) surface.

 

 

In collaboration with my partners, I am also developing highly organized surface-supported metal-molecule frameworks systems, with potential for application in magnetism, catalysis or gas storage. The self-assembly of organic molecule ligands to nano-architectures is a very attractive strategy, both for its efficiency as well as for the high structural quality that can be achieved. The results will also be stimulating for related efforts in supramolecular engineering on solid surfaces which may lead to devices for molecular electronics, sensors, catalysts, magnetic data storage, bioengineering techniques, actuators on surfaces, photoswitchable systems and many more.

Recent Publications

2012

Surface state engineering of molecule–molecule interactions, Geoffrey Rojas, Scott Simpson, Xumin Chen, Donna A. Kunkel, Justin Nitz, Jie Xiao, Peter Dowben, Eva Zurek, and Axel Enders

Nanomagnetic skyrmions, Ralph Skomski, Zhen Li, Rui Zhang, Roger D. Kirby, Axel Enders, Daniel Schmidt, T. Hofmann, Eva Schubert, and David J. Sellmyer

2011

Self-Assembled Nanometer-Scale Magnetic Networks on Surfaces: Fundamental Interactions and Functional Properties, Carlo Carbone, Sandra Gardonio, Paolo Moras, Samir Lounis, Marcus Heide, Gustav Bihlmayer, Nicolae Atodiresei, Peter Heinz Dederichs, Stefan Blügel, Sergio Vlaic, Anne Lehnert, Safia Ouazi, Stefano Rusponi, Harald Brune, Jan Honolka, Axel Enders, Klaus Kern, Sebastian Stepanow, Cornelius Krull, Timofey Balashov, Aitor Mugarza, and Pietro Gambardella

Ultrathin BaTiO3 templates for multiferroic nanostructures, Xumen Chen, Seolun Yang, Ji-Hyun Kim, Hyung-Do Kim, Jae-Sung Kim, Geoffrey Rojas, Ralph Skomski, Haidong Lu, Anand Bhattacharya, Tiffany Santos, Nathan Guisinger, Matthias Bode, Alexei Gruverman, and Axel Enders

Temperature Dependence of Metal-Organic Heteroepitaxy, Geoffrey Rojas, Xumin Chen, Donna A. Kunkel, Matthias Bode, and Axel Enders

Anisotropy of zigzag chains of palladium, P. K. Sahota, Ralph Skomski, Axel Enders, David J. Sellmyer, and Arti Kashyap

Length scales of interactions in magnetic, dielectric, and mechanical nanocomposites, Ralph Skomski, B. Balamurugan, E. Schubert, Axel Enders, and David J. Sellmyer

Is the magnetic anisotropy proportional to the orbital moment?, Ralph Skomski, Arti Kashyap, and Axel Enders

2010

Magnetic surface nanostructures, Axel Enders, Ralph A. Skomski, and J. Honolka

Substrate dependent buffer-layer assisted growth of nanoclusters, Jan Honolka, Violetta Sessi, Jian Zhang, Simon Hertenberger, Axel Enders, and Klaus Kern

Polarized neutron reflectometry study of the magnetization reversal process in YBa2Cu3O7 /La2/3Ca1/3MnO3 superlattices grown on SrTiO3 substrates, J. Hoppler, H. Fritzsche, V. K. Malik, J. Stahn, G. P. Cristiani, H.-U. Habermeier, M. Rössle, J. Honolka, Axel Enders, and C. Bernhard

Self-Assembly and Properties of Nonmetalated Tetraphenyl-Porphyrin on Metal Substrates, Geoffrey Rojas, Xumin Chen, Cameron Bravo, Ji-Hyun Kim, Jae-Sung Kim, Jie Xiao, Peter Dowben, Yi Gao, Xiao Cheng Zeng, Wonyoung Choe, and Axel Enders

Cobalt nanoclusters on metal-supported Xe monolayers: Influence of the substrate on cluster formation kinetics and magnetism, V. Sessi, K. Kuhnke, J. Zhang, J. Honolka, K. Kern, Axel Enders, P. Bencok, S. Bornemann, J. Minár, and H. Ebert

Cobalt nanoclusters on metal-supported Xe monolayers: Influence of the substrate on cluster formation kinetics and magnetism, V. Sessi, K. Kuhnke, J. Zhang, J. Honolka, K. Kern, Axel Enders, P. Bencok, S. Bornemann, J. Minár, and H. Ebert

Entropy localization in magnetic compounds and thin-film nanostructures, Ralph Skomski, Christian Binek, S. Michalski, T. Mukherjee, Axel Enders, and David J. Sellmyer

Magnetic anisotropy in itinerant magnets, Ralph Skomski, A. Kashyap, A. Solanki, Axel Enders, and David J. Sellmyer

Magnetic susceptibility of nanoscale Kondo systems, Ralph Skomski, R. Zhang, P. Kharel, Axel Enders, Sy_Hwang Liou, and D. J. Sellmeyer

2009

Honolka, J (Honolka, J.); Lee, TY (Lee, T. Y.); Kuhnke, K (Kuhnke, K.); Enders, A (Enders, A.); Skomski, R (Skomski, R.); Bornemann, S (Bornemann, S.); Mankovsky, S (Mankovsky, S.); Minar, J (Minar, J.); Staunton, J (Staunton, J.); Ebert, H (Ebert, H.); Hessler, M (Hessler, M.); Fauth, K (Fauth, K.); Schutz, G (Schuetz, G.); Buchsbaum, A (Buchsbaum, A.); Schmid, M (Schmid, M.); Varga, P (Varga, P.); Kern, K (Kern, K.)," Magnetism of FePt Surface Alloys", Physical Review Letters, 102 (6): Art. No. 067207 Feb 13 2009

Zhang, J (Zhang, J.); Sessi, V (Sessi, V.); Michaelis, CH (Michaelis, C. H.); Brihuega, I (Brihuega, I.); Honolka, J (Honolka, J.); Kern, K (Kern, K.); Skomski, R (Skomski, R.); Chen, X (Chen, X.); Rojas, G (Rojas, G.); Enders, A (Enders, A.)," Ordered layers of Co clusters on BN template layers", Physical Review B, 78 (16): Art. No. 165430 Oct 2008

Brihuega, I (Brihuega, Ivan); Michaelis, CH (Michaelis, Christian Heinrich); Zhang, J (Zhang, Jian); Bose, S (Bose, Sangita); Sessi, V (Sessi, Violetta); Honolka, J (Honolka, Jan); Schneider, MA (Schneider, M. Alexander); Enders, A (Enders, Axel); Kern, K (Kern, Klaus), "Electronic decoupling and templating of Co nanocluster arrays on the boron nitride nanomesh", Surface Science, 602 (14): L95-L99 Jul 15 2008.

Zurek, E (Zurek, Eva); Autschbach, J (Autschbach, Jochen); Malinowski, N (Malinowski, Nikola); Enders, A (Enders, Axel); Kern, K (Kern, Klaus), "Experimental and theoretical investigations of the thermodynamic stability of Ba-C-60 and K-C-60 compound clusters", ACS Nano, 2 (5): 1000-1014 May 2008

Skomski, R (Skomski, R.); Zhang, J (Zhang, J.); Sessi, V (Sessi, V.); Honolka, J (Honolka, J.); Kern, K (Kern, K.); Enders, A (Enders, A.), "Substrate-controlled growth and magnetism of nanosize Fe clusters on Pt", Journal of Applied Physics, 103 (7): Art. No. 07D519 Apr 1 2008