Concentrated-mass cantilever enhances multiple harmonics in tapping-mode atomic force microscopy

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Tapping mode atomic force microscopy in liquid

We show that standard silicon nitride cantilevers can be used for tapping mode atomic force microscopy (AFM) in air, provided that the energy of the oscillating cantilever is sufficiently high to overcome the adhesion of the water layer. The same cantilevers are successfully used for tapping mode AFhif in liquid. Acoustic modes in the liquid excite the canti1eve.r. On soft samples, e.g., biolog...

متن کامل

Photothermal excitation for improved cantilever drive performance in tapping mode atomic force microscopy

Photothermal excitation is an alternative cantilever drive mechanism for tapping mode atomic force microscopy. It uses a power-modulated laser focused on the cantilever to directly drive its oscillation, producing cantilever tunes that match the thermal response almost perfectly. This enables quantitatively accurate AFM imaging and viscoelastic nanomechanical mapping in all environments. In add...

متن کامل

Phase imaging and stiffness in tapping-mode atomic force microscopy

The dependence of phase angles in tapping-mode atomic force microscopy on the magnitude of tip-sample repulsive interactions was investigated, and phase images of several hard and soft samples were recorded as a function of the free amplitude Ao and the set-point tapping amplitude Asp. The phase angle of probe oscillation increases with decreasing the set-point amplitude ratio Asp/Ao. Phase ima...

متن کامل

Squeeze Film Air Damping in Tapping Mode Atomic Force Microscopy

In dynamic plowing lithography, the sample surface is indented using a vibrating tip in tapping mode atomic force microscopy. During writing, the gap between the cantilever and the sample surface is very small, usually on the order of micrometers. High vibration frequency and small distance induce squeeze film air damping from the air in the gap. This damping can cause variations in the cantile...

متن کامل

Capillary forces in tapping mode atomic force microscopy

We investigated the influence of the relative humidity on amplitude and phase of the cantilever oscillation while operating an atomic force microscope ~AFM! in the tapping mode. If the free oscillation amplitude A0 exceeds a certain critical amplitude Ac , the amplitudeand phase-distance curves show a transition from a regime with a net attractive force between tip and sample to a net repulsive...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Applied Physics Letters

سال: 2008

ISSN: 0003-6951,1077-3118

DOI: 10.1063/1.2909535