PPMS® SPM, Compact Low Temperature Scanning Probe Microscopes
1 / 8Pages

Compact Low Temperature Scanning Probe Microscopes Compact Low Temperature Scanning Probe Microscopes Compact Low Temperature Scanning Probe Microscopes © 2010, attocube systems AG - Germany. attocube systems and the logo are trademarks of attocube systems AG. Registered and/or otherwise protected in various countries where attocube systems products are sold or distributed. Other brands and names are the property of their respective owners. attocube systems AG | Königinstrasse 11a (Rgb) | D - 80539 München | Germany Tel.: +49 89 2877 809 - 0 | Fax: +49 89 2877 809 - 19 | info@attocube.com www.attocube.com Brochure version: 2010 - 01 attocube systems explore your nanoworld attocube systems explore your nanoworld

01 SCANNING PROBE MICROSCOPY FOR THE QUANTUM DESIGN PPMS® attocube systems‘ scanning probe microscope family (CFM, AFM, MFM, SNOM*, and STM*) has undergone a redesign to fit any 25 mm (1”) static sample space including the Quantum Design PPMS®. Despite the compactness, all microscopes provide a coarse travel range of 3 x 3 x 2.5 mm3 and a scan range of 12 x 12 μm2 at low temperature (4 K). The outstanding stability of the microscopes allows investigation of nm-sized structures with highest resolution making these instruments versatile tools for state-of-the-art research on the nanometer...

02 attoMFM Ixs Principle - The microscope uses a set of xyz-positioners for coarse positioning of the sample over a range of several mm. Developed particularly for cryogenic applications, the piezo scanner ANSxy50 provides a scan range of 12 x 12 μm2 even at liquid helium temperature. The adjustment of the MFM cantilever is performed outside of the cryostat prior to cooling down the microscope. The exceptional combination of materials allows absolutely stable high resolution imaging of surfaces. The attoMFM Ixs is an ultra-compact magnetic force microscope designed particularly for...

Close-up of the MBE grown SHPM chip, showing its Hall-sensor/STM leads and the bond wires for electrical connection to the chip carrier. The Hall sensors are available as high resolution and ultra-high resolution version, featuring an active Hall area of 500x500 nm² and 300x300 nm², respectively. LOW TEMPERATURE SCANNING HALL PROBE MICROSCOPE 10 µm The attoSHPM xs is an ultra-compact scanning Hall probe microscope, designed particularly for the operation at low temperature and high magnetic fields. At the heart of the SHPM, a molecular beam epitaxy (MBE) grown GaAs/AlGaAs Hall sensor...

04 attoAFM Ixs LOW TEMPERATURE ATOMIC FORCE MICROSCOPE The attoAFM Ixs is an ultra-compact atomic force microscope designed particularly for applications at low and ultra low temperature. The instrument works by scanning a sample below a fixed cantilever while measuring its deflection with highest precision using a fiber based optical interferometer. Combined with the ASC500 SPM controller, both contact and noncontact modes are applicable, making the attoAFM Ixs a powerful tool for topographic measurements, force spectroscopy and other imaging modes. Apart from these capabilities, the...

Principle - The microscope uses a set of xyz-positioners for coarse positioning of the sample over a range of several mm. Developed particularly for cryogenic applications, the piezo scanner ANSxy50 provides a scan range of 12 x 12 μm2 even at liquid helium temperature. The exceptional combination of materials allows absolutely stable high resolution imaging of surfaces. > fits 1” clear bore cryostats and magnets > highest flexibility and sensitivity combined with minimal light loss > access to optical spectroscopy such as Raman spectroscopy (free-beam) > highly stable long term...

Scan Engine: The ASC500 uses a dedicated hardware with a 5 MHz scan generator, creating the scan voltages necessary for any Scanning Probe Microscope. The 16 bits of the xy outputs are always automatically mapped to the actual scan field, yielding a virtually unlimited bit resolution. FULLY DIGITAL SPM CONTROLLER The ASC500 is a modular and flexible digital SPM controller which combines state-of-the-art hardware with innovative software architecture, offering superior performance and an unprecedented variety of control concepts. The ASC500 controller was developed with the goal to never be...

07 ATTOCUBE SYSTEMS’ CONTROLLER Open up New Possibilities 08 ATTOCUBE SYSTEMS Creating scientific impact The internal PLL of the ASC500 was used to control a high Q tuning fork AFM. Topography measurements were performed on uncapped, stacked InAs Quantum Dots in a GaAs matrix. The evaluation of the height distribution revealed atomic steps with a spacing of ~2 Ångstrom. Topography and error signal were recorded simultaneously. 500 nm A cantilever based low temperature MFM was used to image single vortices on BSCCO. The signal quality could be significantly enhanced by using the Q control...