Nanoanalytics

Dr. Oliver Bierwagen

Senior Scientist

Speaker of Scientists

Oliver Bierwagen

phone: +49 30 20377 491

room: 0713

email: bierwagen@pdi-berlin.de

 

Department: Epitaxy

Core research areas: Nanofabrication

 

Research interests:

Semiconductors

Oxides

Molecular Beam Epitaxy

Transport measurements

 

 

1 Author J. E. N. Swallow , C. Vorwerk , P. Mazzolini , P. Vogt , O. Bierwagen , A. Karg , M. Eickhoff , J. Schörmann , M. R. Wagner , J. W. Roberts , P. R. Chalker , M. J. Smiles , P. A. E. Murgatroyd , S. A. Razek , Z. W. Lebens-Higgins , L. F. J. Piper , L. A. H. Jones , P. K. Thakur , T.-L. Lee , J. B. Varley , J. Furthmüller , C. Draxl , T. D. Veal , A. Regoutz
Title

Influence of Polymorphism on the Electronic Structure of Ga2O3

Source Chemistry of Materials , tbd , tbd ( 2020 )
DOI : 10.1021/acs.chemmater.0c02465 | Download arXiv: 2005.13395 | 3191 Cite : Bibtex RIS
J. E. N. Swallow, C. Vorwerk, P. Mazzolini, P. Vogt, O. Bierwagen, A. Karg, M. Eickhoff, J. Schörmann, M. R. Wagner, J. W. Roberts, P. R. Chalker, M. J. Smiles, P. A. E. Murgatroyd, S. A. Razek, Z. W. Lebens-Higgins, L. F. J. Piper, L. A. H. Jones, P. K. Thakur, T.-L. Lee, J. B. Varley, J. Furthmüller, C. Draxl, T. D. Veal, and A. Regoutz

2 Author S. Niavol , M. Budde , A. Papadogianni , M. Heilmann , H. Milani Moghaddam , C. M. Aldao , G. Ligorio , E. J. W. List-Kratochvil , J. M. J. Lopes , N. Barsan , O. Bierwagen , F. Schipani
Title

Conduction Mechanisms in Epitaxial NiO/Graphene Gas Sensors

Source Sens. Actuators B Chem. , 325 , 128797 ( 2020 )
DOI : 10.1016/j.snb.2020.128797 | 3188 Cite : Bibtex RIS
S. Niavol, M. Budde, A. Papadogianni, M. Heilmann, H. Milani Moghaddam, C. M. Aldao, G. Ligorio, E. J. W. List-Kratochvil, J. M. J. Lopes, N. Barsan, O. Bierwagen, and F. Schipani

3 Author A. Papadogianni , J. Rombach , T. Berthold , V. Polyakov , S. Krischok , M. Himmerlich , O. Bierwagen
Title

Two-dimensional electron gas of the In2O3 surface: Enhanced thermopower, electrical transport properties, and reduction by adsorbates or compensating acceptor doping

Source Phys. Rev. B , 102 , 075301 ( 2020 )
DOI : 10.1103/PhysRevB.102.075301 | Download: PDF | 3163 Cite : Bibtex RIS
A. Papadogianni, J. Rombach, T. Berthold, V. Polyakov, S. Krischok, M. Himmerlich, and O. Bierwagen

4 Author J. Feldl , M. Budde , C. Tschammer , O. Bierwagen , M. Ramsteiner
Title

Magnetic characteristics of epitaxial NiO films studied by Raman spectroscopy

Source J. Appl. Phys. , 127 , 235105 ( 2020 )
DOI : 10.1063/5.0006085 | Download: PDF | 3175 Cite : Bibtex RIS
J. Feldl, M. Budde, C. Tschammer, O. Bierwagen, and M. Ramsteiner

5 Author P. Mazzolini , O. Bierwagen
Title

Towards smooth (010) β-Ga2O3 films homoepitaxially grown by plasma assisted molecular beam epitaxy: The impact of substrate offcut and metal-to-oxygen flux ratio

Source J. Phys. D: Appl. Phys. , 53 , 354003 ( 2020 )
DOI : 10.1088/1361-6463/ab8eda | Download arXiv: 2003.05832 | 3177 Cite : Bibtex RIS
P. Mazzolini, and O. Bierwagen

6 Author O. Bierwagen , P. Vogt , P. Mazzolini
Title

Gallium Oxide - Plasma-Assisted Molecular Beam Epitaxy 2—Fundamentals of Suboxide-Related Growth Kinetics, Thermodynamics, Catalysis, Polymorphs, and Faceting

Source Springer Series in Materials Science , 293 , 95 ( 2020 )
DOI : 10.1007/978-3-030-37153-1_6 | 3184 Cite : Bibtex RIS
O. Bierwagen, P. Vogt, and P. Mazzolini

7 Author G. Hoffmann , M. Budde , P. Mazzolini , O. Bierwagen
Title

Efficient suboxide sources in oxide molecular beam epitaxy using mixed metal + oxide charges: The examples of SnO and Ga2O

Source APL Mater. , 8 , 031110 ( 2020 )
DOI : 10.1063/1.5134444 | Download: PDF | 3152 Cite : Bibtex RIS
G. Hoffmann, M. Budde, P. Mazzolini, and O. Bierwagen

8 Author P. Mazzolini , A. Falkenstein , C. Wouters , R. Schewski , T. Markurt , Z. Galazka , M. Martin , M. Albrecht , O. Bierwagen
Title

Substrate-orientation dependence of β-Ga2O3 (100), (010), (001), and (ˉ201) homoepitaxy by indium-mediated metal-exchange catalyzed molecular beam epitaxy (MEXCAT-MBE)

Source APL Mater. , 8 , 011107 ( 2020 )
DOI : 10.1063/1.5135772 | Download: PDF | 3156 Cite : Bibtex RIS
P. Mazzolini, A. Falkenstein, C. Wouters, R. Schewski, T. Markurt, Z. Galazka, M. Martin, M. Albrecht, and O. Bierwagen

9 Author M. Budde , T. Remmele , C. Tschammer , J. Feldl , P. Franz , J. Lähnemann , Z. Cheng , M. Hanke , M. Ramsteiner , M. Albrecht , O. Bierwagen
Title

Plasma-assisted molecular beam epitaxy of NiO on GaN(00.1)

Source J. Appl. Phys. , 127 , 015306 ( 2020 )
DOI : 10.1063/1.5129881 | Download: PDF | 3137 Cite : Bibtex RIS
M. Budde, T. Remmele, C. Tschammer, J. Feldl, P. Franz, J. Lähnemann, Z. Cheng, M. Hanke, M. Ramsteiner, M. Albrecht, and O. Bierwagen

10 Author C. Golz , Z. Galazka , J. Lähnemann , V. Hortelano , F. Hatami , W.T. Masselink , O. Bierwagen
Title

The electrical conductivity tensor of beta-Ga2O3 analyzed by van der Pauw measurements: Inherent anisotropy, off-diagonal element, and the impact of grain boundaries

Source Phys. Rev. Mater. , 3 , 124604 ( 2019 )
DOI : 10.1103/physrevmaterials.3.124604 | Download arXiv: | 3121 Cite : Bibtex RIS
C. Golz, Z. Galazka, J. Lähnemann, V. Hortelano, F. Hatami, W.T. Masselink, and O. Bierwagen

Contact

Dr. Achim Trampert

Head of Department 

+49 30 20377-280

trampert@pdi-berlin.de