F. Bocquet, L. Nony, Ch. Loppacher.- Polarization effects in noncontact atomic force microscopy: A key to model the tip-sample interaction above charged adatoms.- Physical Review B, 83, 035411 (2011) »

R. Pawlak, L. Nony, F. Bocquet, V. Oison, M. Sassi, J.M. Debierre, C. Loppacher and L. Porte.- Supramolecular assemblies of 1,4-benzene diboroninc acid on KCl(001) , J.Chem.Phys. C, 114, 9290-9295 (2010)

L. Nony, F.Bocquet, Ch.Loppacher and Th.Glatzel.- On the relevance of the atomic-scale contact potential difference by amplitude-modulation and frequency-modulation Kelvin probe force microscopy, Nanotechnology 20, 264014 (2009)

Bocquet F., Nony N., Loppacher C., Glatzel T.- Analytical approach to the local contact potential  difference on (100) ionic surfaces : implications for Kelvin probe force microscopy.- Physical Review B, vol. 78, no 3, p 035410, 2008

Dienel T., Loppacher C., Mannsfeld S.C.B.,Forker R., Fritz T.- Growth-mode-induced narrowing of optical spectra of an organic adlayer.- Advanced Materials, vol. 20, p. 959, 2008

Haubner K., Jaehne E., Adler H.-J. P., Koehler D., Loppacher C., Eng L.M., J. Grenzer, Herasimovich A., Scheinert S.- Assembly, structure, and performance of an ultra-thin film organic field-effect transistor (OFET) based on substituted oligothiophenes.- Physica Status Solidi (a), vol. 205, p. 430, 2008

Milde P., Zerweck U., Eng L.M., Abel M., Giovanelli L., Nony L., Mossoyan M., Porte L., Loppacher Ch.- Interface dipole formation of different ZnPcCl8 phases on Ag(111) observed by Kelvin probe force microscopy.- Nanotechnology, vol. 19, p. 305501, 2008

Nikiforov M. P., Zerweck U., Milde P., Loppacher Ch., Park T-H., Uyeda H.T., Therien M.J., Eng L., Bonnell D.- The effect of molecular orientation on the potential of porphyrin-metal contacts.- Nanoletters, vol. 8, p. 110, 2008

Gemming S., Luschtinetz R., Alsheimer W., Seifert G., Loppacher Ch., Eng L.M.- Modelling ferroic functional element.- Journal of Computer-Aided Materials Design, vol. 14, p. 211, 2007

Gemming S., Luschtinetz R., Chapligyn I., Seifert G., Loppacher C., Eng L.M., Kunze T., Olbrich C.- Polymorphism in ferroic functional elements.- European Physical Journal Special Topics, vol. 140, p. 145, 2007

Loppacher Ch., Zerweck U., Koehler D., Rodenstein M., Jaehne E., Luther R., Adler H.-J., Eng L.M.- Physical vapor deposition of alkyl phosphonic acid on mica and HOPG investigated by NC-AFM.- Nanotechnology,vol. 18, p. 084003, 2007

Zerweck U., Loppacher Ch., Otto T., Grafström S., Eng L.M.- Kelvin probe force microscopy of C60 on metal substrates: towards molecular resolution.- Nanotechnology, vol. 18, p. 084006, 2007

Ch. Loppacher, U. Zerweck, L.M. Eng, S. Gemming, G. Seifert, C. Olbrich, K. Morawetz, and M. Schreiber
Adsorption of 3,4,9,10-perylene-tetracarboxylic-dianhydride on ultrathin potassium bromide films.
Nanotechnology 17: 1586-1573 (2006).

U. Zerweck, Ch. Loppacher and L.M. Eng
Ordered Growth and local workfunction measurements of tris(8-hydroxyquinoline) aluminum on ultrathin KBr films.
Nanotechnology 17: S107-S111 (2006).

C. Loppacher, U. Zerweck, S. Teich, E. Beyreuther, T. Otto, S. Grafstrï¿1⁄2, and L.M. Eng
FM demodulated Kelvin probe force microscopy for surface photovoltage tracking
Nanotechnology 16: S1-S6 (2005).

U. Zerweck, Ch. Loppacher, T. Otto, S. Grafstrï¿1⁄2, and L.M. Eng
Accuracy and Resolution Limits of Kelvin Probe Force Microscopy.
Phys. Rev. B 71: 125424 (2005).

L.M. Eng, Ch. Loppacher, and U. Zerweck
Quantitative and Nanoscale Surface Potential Tracking of Ionic and Organic Adsorbates at sub-Monolayer Coverage.
Mater. Res. Soc. Symp. Proc. 838E: O1.10.1 (2005).

Ch. Loppacher, U. Zerweck, and L.M. Eng
Kelvin Probe Force Microscopy of Alkali Chloride Thin Films on Au(111)
Nanotechnology 15: S9S13 (2004).

L.M. Eng, S. Grafstrï¿1⁄2, C. Loppacher, X.M. Lu, F. Schlaphof, K. Franke, G. Suchaneck, and G. Gerlach
Local dielectric and polarization properties of inner and outer interfaces in PZT thin films
Integrated Ferroelectrics 62: 13-21 (2004).

B. Voit, F. Braun, Ch. Loppacher, S. Trogisch, L.M. Eng, R. Seidel, A. Gorbunoff, W. Pompe, and M. Mertig
Photolabile ultrathin polymer films for spatially defined attachment of nano elements
Polymers for Microelectronics and Nanoelectronics, Eds.: Q. Lin, R.A. Pearson, and J.C. Hedrick ACS Symposium Series 874: 118-128 (Oxford University Press 2004).

L. M. Eng, S. Grafstrom, I. Hellmann, Ch. Loppacher, T. Otto, J. Renger, F. Schlaphof, J. Seidel, and U. Zerweck
Nanoscale nondestructive electric field probing in ferroelectrics, organic molecular films and near-field optical nanodevices
Proc. SPIE Int. Soc. Opt. Eng. 5392: 21 (2004).

P. Lagos, R. Hermans, N. Velasco, G. Tarrach, F. Schlaphof, Ch. Loppacher, and L. M. Eng
Polarized micro-Raman spectroscopy of experimentally identified ferroelectric domains in single-crystal BaTiO3
Surface Science 532-535: 493-500 (2003).

Ch. Loppacher, F. Schlaphof, S. Schneider, U. Zerweck, S. Grafstrï¿1⁄2, L.M. Eng, A. Roelofs, and R. Waser
Lamellar ferroelectric domains in PbTiO3 grains imaged and manipulated by AFM
Surface Science 532-535: 483-487 (2003).

Ch. Loppacher, M. Guggisberg, O. Pfeiffer, E. Meyer, M. Bammerlin, R. Lthi, R. Schlittler, J.K. Gimzewski, H. Tang, and C. Joachim
Direct determination of the energy required to operate a single molecule switch
Phys. Rev. Lett. 90: 066107-1 (2003).
[Physics Today April 2003]
Physics Today April 2003: Physics Update


Ch. Loppacher, S. Trogisch, F. Braun, A. Zherebov, S. Grafstroem, L.M. Eng, and B. Voit
Metal Salt Complexation of Spin-coated Ultrathin Diazosulfonate Terpolymer Films
Macromolecules 35: 1936-1940 (2002).

X.M. Lu, F. Schlaphof, S. Grafstrï¿1⁄2, Ch. Loppacher, L.M. Eng, G. Suchaneck, and G. Gerlach
Scanning force microscopy investigation of the Pb(Zr0.25Ti0.75)O3/Pt interface
Appl. Phys. Lett. 81: 3215 (2002).

S. Trogisch, Ch. Loppacher, F. Braun, S. Grafstrï¿1⁄2, B. Voit, L.M. Eng
Optical modification and metal complexation of ultrathin spin-coated polymer films
Macromol. Symp. 184: 261274 (2002).

Felix Braun, Lukas Eng, Christian Loppacher, Sven Trogisch, Brigitte Voit
Novel Diazosulfonate Terpolymers for the Preparation of Structured Functionalized Surfaces: Synthesis and Characterization
Macromol. Chem. Phys. 203: 17811789 (2002).

B. Voit, F. Braun, Ch. Loppacher, S. Trogisch, and L. Eng
Photolabile Ultrathin Films for Spatially Defined Attachement of Nanoobjects
Polymeric Materials: Science & Engineering 87: 407 (2002).

M. Guggisberg, O. Pfeiffer, S. Schï¿1⁄2, V. Barwich, M. Bammerlin, Ch. Loppacher, R. Bennewitz, A. Baratoff and E. Meyer
Contrast inversion in nc-AFM on Si(111)7x7 due to short-range electrostatic interactions.
Appl. Phys. A 72: S19-22 (2001).

L.M. Eng, S. Grafstrï¿1⁄2, Ch. Loppacher, F. Schlaphof, S. Trogisch, A. Roelofs, and R. Waser
3-Dimensional Electric Field Probing of Ferroelectrics on the Nanometer Scale using Scanning Force Microscopy.
Advances in Solid State Physics 41: 287-298 (2001).

J. Seidel, S. Grafstrï¿1⁄2, Ch. Loppacher, S. Trogisch, F. Schlaphof, and L.M. Eng
Near-field spectroscopy with white-light illumination
Appl. Phys. Lett. 79: 2291 (2001).

G. Tarrach, P.L. Lagos, and R.Z. Hermans, F. Schlaphof, Ch. Loppacher, and L.M. Eng
Nanometer spot allocation for Raman spectroscopy on ferroelectrics by polarization and piezoresponse force microscopy
Appl. Phys. Lett. 79: 3152 (2001).

Ch. Loppacher, M. Bammerlin, M. Guggisberg, E. Meyer, H.-J. Gntherodt, R. Lthi, R. Schlittler, and J.K. Gimzewski
Forces with submolecular resolution between the probing tip and Cu-TBPP molecules on Cu(100) by a combined AFM/STM.
Appl. Phys. A 72: S105-108 (2001).

M. Guggisberg, M. Bammerlin, Ch. Loppacher, O. Pfeiffer, A. Abdurixit, V. Barvich, R. Bennewitz, A. Baratoff, E. Meyer, and H.-J. Gntherodt.
Separation of Interactions by Noncontact Force Microscopy.
Phys. Rev. B 61 (16):11151 (2000).

M. Guggisberg, M. Bammerlin, A. Baratoff, R. Lthi, Ch. Loppacher, F.M. Battiston, J. L, R. Bennewitz, E. Meyer, and H.-J. Gntherodt.
Dynamic Force Microscopy across Steps on the Si(111)7ï¿1⁄2 Surface.
Surface Science 462 (1-3): 255 (2000).

R. Bennewitz, A.S. Foster, L.N. Kantorovich, M. Bammerlin, Ch. Loppacher, S. Schï¿1⁄2, M. Guggisberg, E. Meyer, H.-J. Gntherodt, and A.L. Shluger.
Atomically Resolved Steps and Kinks on NaCl Islands on Cu(111): Experiment and Theory.
Phys. Rev. B 62: 2074 (2000).

E. Gnecco, R. Bennewitz, T. Gyalog, Ch. Loppacher, M. Bammerlin, E. Meyer, and H.-J. Gntherodt.
Velocity Dependence of Atomic Friction.
Phys. Rev. Lett. 84(6): 1172 (2000).

V. Barwich, M. Bammerlin, A. Baratoff, R. Bennewitz, M. Guggisberg, Ch. Loppacher, O. Pfeiffer, E. Meyer, H.-J. Gntherodt, J.P. Salvetat, J.M. Bonard, and L. Forro.
Carbon Nanotubes as Tips in Non-Contact SFM.
Appl. Surf. Sci. 157: 269 (2000).

O. Pfeiffer, Ch. Loppacher, C. Wattinger, M. Bammerlin, U. Gysin, M. Guggisberg, S. Rast, R. Bennewitz, E. Meyer, and H.-J. Gntherodt.
Using Higher Flexural Modes in Non-Contact Force Microscopy.
Appl. Surf. Sci. 157: 337 (2000).

Ch. Loppacher, R. Bennewitz, O. Pfeiffer, M. Guggisberg, M. Bammerlin, S. Schï¿1⁄2, V. Barwich, A. Baratoff, and E. Meyer
Experimental aspects of dissipation force microscopy.
Phys. Rev. B 62 : 13674 (2000).

Ch. Loppacher, M. Bammerlin, M. Guggisberg, S. Schï¿1⁄2, R. Bennewitz, A. Baratoff, E. Meyer, and H.-J. Gntherodt
Dynamic force microscopy of copper surfaces- Atomic resolution and distance dependence of tip-sample interaction and tunneling current.
Phys. Rev. B 62: 16944 (2000).