Dr. Haifeng Ma

 

Surface Physics Group of Prof. Jürg Osterwalder

Institute of Physics

University of Zürich           

Winterthurerstr. 190

CH-8057 Zürich, Switzerland 

Phone:  +(41) -44-635-6696

Fax:    +(41) -44-635-5704

E-mail: hfma@physik.uzh.ch

 

 

       

CURRENT PROJECTS

a) The Sinergia Project supported by the Swiss National Science Foundation:  "Boron Nitride Nanomesh for Guided Self-Assembly of Molecular Arrays in Solutions".

b) The Sino Swiss Science and Technology Cooperation Program (SSSTCP): "Sp2 Nano-Templates for Molecules".

  

PROFESSIONAL EXPERIENCE

Apr. 2008- Present: Post-doc in the Surface physics Group of Prof. Jürg Osterwalder, University of Zürich, Zürich, Switzerland.

(1)                        Investigation of the adsorption, diffusion and desorption kinetics of water molecules on the h-BN/Rh(111) substrate at low temperatures using ultra-high vacuum variable temperature scanning tunneling microscopy (VT-STM).

(2)                        Fabrication and Characterization of hexagonal boron nitride nanomesh on a single crystalline Rh(111) film-coated 4'' Si(111) wafer in the Sinergia cleanroom.

Dec. 2006-Apr. 2008, University Lecturer in Yansan University, Qinhuangdao, China

Aug. 2003-Sept. 2006, Nanoscale Physics & Devices Laboratory, Institute of Physics, Chinese Academy of Sciences, Beijing, China

(1)   Study of the formation and evolution of self-organized Ge nanostructures on Si(111)- (7x7) by using UHV-STM.

Ø        Tracking a co-existing hierarchy of periodic Ge single-atom and nanoparticle superstructures on a clean Si surface for Ge coverages up to 0.5 ML at RT and LT.

Ø        Revealing Ge clusters growth process and mechanism with the combination of AES, EFM, STS and ab-initio calculations.

Ø        Imaging of Ge nanostructures on Si(111)-7×7 surface with functionalized STM tips.

Ø        Collaboration with Sanwu Wang from Department of Physics and Astronomy, Vanderbilt University and Condensed Matter Sciences Division, Oak Ridge National Laboratory about first principle calculations.

(2)   Characteristic adsorption of pentacene (C22 H14) on the Si(111)-7×7 surface at initial stage by UHV-VT-STM.

Ø        Collaboration with Mattia Fanetti from a CNR-INFM and Dipartimento di Matematica e Fisica, Università Cattolica del Sacro Cuore, Italy.

(3)   Study of SiO2 ultra-thin films on Mo(112) by UHV-STM.

Ø        Design and system set-up (including EBH, ion sputtering, gas station, etc.) on STM1, maintenance and operation.

Ø        Growth of Au on the Si(111)-7×7 surface at room temperature by in-situ LEED.

 

Sept. 2000-June 2003, Faculty of Physics and Electronic Engineering, Hubei University, Wuhan, China

(1)     Fabricated a new type of modified PbTiO3 piezoelectric ceramic with high mechanical quality factor.

(2)     Investigated the mechanism for temperature stability in this modified PbTiO3 ceramic.

(3)     Expertized in fabrication of ceramic powder and functional ceramics by conventional sinter process, and skillful in characterization of the structural, dielectric, ferroelectric properties of the relevant materials. 

 

TEACHING EXPERIENCE

Apr 2008 –present: University of Zurich,

Ø        Lab assistant of undergraduate physics courses: Adsorption of Gamma Rays, Fluid Friction in Liquids, the Michelson Interferometer, and Microwaves.

Ø        Teaching assistant of Physics I for students in biology and chemistry.

2006: Institute of Physics, Chinese Academy of Sciences

Ø        Supervising graduate students for their research projects.

2003: Hubei University

Ø        Supervising graduate students for their research projects.

 

EXPERIMENTAL EXPERTISE   

Ø        Familiar with UHV-STM (STM1 (Omicron, Germany), UHV-VT-STM (Omicron, Germany)), Atmospheric STM (NT-MDT, Russia), AFM (DI, America)

Ø        Expertise in other surface characterization tools including MBE-LEED, AES, EFM, EBH, STS

 

EDUCATION

Ph. D., Condensed Matter Physics, Oct., 2003 - Sept., 2007

Institute of Physics, Chinese Academy of Sciences, Beijing, China

Thesis Advisor: Prof. Hongjun Gao

Thesis topic: Heteroepitaxy of Low-dimensional Nanostructure and Its Characteristics on Si(111)-7×7 Surface Using UHV-STM

M. E., Material Science, Sept., 2000- July, 2003

Faculty of Physics and Electronic Engineering, Hubei University, Wuhan, China

Thesis Advisor: Prof. Taosheng Zhou

Thesis title: Temperature Stability and Its Mechanical Quality Factor of Modified PbTiO3 piezoelectric ceramic

B. S., Material Science, Sept., 1996- July, 2000

Faculty of Physics and Electronic Engineering, Hubei University, Wuhan, China

 

HONORS AND AWARDS

1.      Scholarship of the Institute of Physics, 2006

2.      Scholarship of the Institute of Physics, 2005

3.      Excellent Institute Paper Prize for the M. S. thesis, 2003

 

PUBLICATIONS

1.      H. F. Ma, M. Thomann, J. Schmidlin, S. Roth, M. Morscher, and T. Greber. Corrugated single layer templates for molecules: From h-BN nanomesh to graphene based quantum dot arrays. Frontiers of Physics in China 5(4): 387-392 (2010).

2.      T. Brugger, H. F. Ma, M. Iannuzzi, S. Berner, A. Winkler, J. Hutter, J. Osterwalder, and T. Greber. Nano-texture switching of single layer hexagonal boron nitride on rhodium by hydrogen intercalation. Angew. Chem. Int. Ed. 49, 6120-6124 (2010).

3.      H. F. Ma, T. Brugger, S. Berner, Y. Ding, M. Iannuzzi, J. Hutter, J. Osterwalder, and T. Greber. Nano-ice on the Boron Nitride Nanomesh: Accessing Proton Disorder. Chemphyschem 11(2): 399-403 (2010).

4.      H. F. Ma, Z. H. Qin, Y. L. Wang, H. M. Guo, D. X. Shi, H.-J. Gao, Sanwu Wang, S. T. Pantelides. Formation and Evolution of a Self-Organized Hierarchy of Ge Nanostructures on Si(111). Phys. Rev. B 75, 165403 (2007).

5.      H. F. Ma, M. C. Xu, B. Yang, D. X. Shi, H. M. Guo, S. J. Pang, H. J. Gao. Formation and Local Electronic Structure of Ge Clusters on Si(111)-7×7 Surface. Chinese Physics 16 (9): 2661-2664 (2007).

6.      H. F. Ma, B. Xu, C. Z. Fan. Advances in the Study of Nano-scale Surface Physics. Journal of Yansan University (Natural Science Edition) 3(32): 209-213(2008).

7.      Z. H. Qin, D. X. Shi, H. F. Ma, H.-J. Gao, Aditi S. Rao, Sanwu Wang, and Sokrates T. Pantelides. STM Observation and First-principles Determination of Ge Nanoscale Structures on Si(111). Phys. Rev. B 75, 085313 (2007).

8.      M. C. Xu, H. F. Ma, W. Ji, B. Yang, and H.-J. Gao, Ge Hexagonal Meshwork Growth on Si(111)-7×7. Nanotechnology 17, 4413-4415 (2006).

9.      H. M. Guo, Y. L. Wang, H. W. Liu, H. F. Ma, Z. H. Qin, H. J. Gao. Formation of Ge Nanoclusters on Si(111)-7×7 Surface at High Temperature. Sur. Sci. 561, 227-232 (2004).

10.  Y. L. Wang, H. M. Guo, Z. H. Qin, H. F. Ma, H. J. Gao. Toward a Detailed Understanding of Si(111)-7×7 Surface and Adsorbed Ge Nanostructures:

Fabrications, Structures, and Calculations. J. of Nanomaterials 874213 (2008)

 

PRESENTATIONS AND CONFERENCES

1.      Molchsurf Meeting – Bern, Switzerland 10/06/2010.

2.      APS March Meeting – Portland, USA 17/03/2010. Oral Presentation “Nano-ice on Boron Nitride Nanomesh: accessing proton disorder”.

3.      The 2nd Nanomesh Sinergia Meeting- Thun, Switzerland 29/10/2009. Oral Presentation “STM Investigation of Water on the h-BN/Rh(111) Surface”.

4.      Joint Annual Meeting of ÖPG/SPS/ÖGAA – Innsbruck, Austria 04/09/2009. Oral Presentation “Nano-Iice on h-BN/Rh(111): a Two Dimensional Gas-Solid Phase System”.

5.      Molchsurf Meeting – Bern, Switzerland 22/06/2009. Oral Presentation “N-ice in the Nanomesh: STM Investigation of Water on the h-BN/Rh(111) Surface”.

6.      Molchsurf Meeting – Bern, Switzerland 10/06/2008.

7.      Nanomesh Final Meeting in Orscholz, Germany 23/6/2008.

8.      Conference of Chinese Nano- and Surface Science and Technique & International Workshop on Fundamental Aspects of the Future Information Technology – Beijing, China, 09/2005. Poster Presentation “Bonding Configurations and Collective Patterns of Ge Atoms Adsorbed on the Si(111)-7×7 Surface”.

9.      Conferences and Academic Meetings of Chinese Physical Society (CPS) – Shanxi Province, China 09/2004.Oral Presentation “Direct Observation of Surface Structure of L-alanine and DL-valine Crystals by Atomic Force Microscopy”.

10.  Scanning Probe Microscopy 2004 conference& STM’8 – Beijing-TEDA, China 05/ 2004. Poster Presentation “Scanning Tunneling Microscopy Study of Ge Nanoclusters Formation on Si(111)-7×7 Surface ”.