- Scanning probe microscopy in the 1.8 K - 350 K temperature range
Sample in helium (nitrogen) gas or in vacuum
New possibilities for the study of surface morphology and local properties with subnanometer space resolution
Probe microscopy parameters
 System for precise scanning
Scanner FSS-3:
Scanning range – up to 3 μ.
Step discrete – 0.01 nm.
Scanning rate max. – 30 Hz.
Typical thermal drift – less than 0.1 nm/sec.
Scanner FSS-15:
Scanning range – up to 15 μ.
Step discrete – 0.03 nm.
Scanning rate max. – 30 Hz.
Typical thermal drift – less than 1 nm/sec.
Sample orientation – horizontal.
Sample size – up to 10 mm in diameter and 5 mm in height.
Probe-sample approach – truly vertical (no lateral shift).
Initial probe-sample approach – 4 mm by step motor.
Probe vertical displacement discrete during initial approach – 30 nm.
Scanning tunneling microscopy mechanical head
STM modes: constant height, constant mode, spectroscopy, nanolithography.
I(U) and I(Z) dependencies in selected regions.
Resolution atomic on graphite.
Tunneling current – 50 pA - 50 nA.
Bias voltage range – ±10 V.
Magnetic force microscopy mechanical head
Interleave and lift modes for contact and resonance modes.
Force sensitivity – up to 10-11 N.
Single magnetic domains space resolution.
Cantilevers with different magnetic coatings.
Simultaneous acquisition of topography and magnetic profile data.
Atomic force microscopy head
AFM modes: constant force, constant current, friction.
Resolution atomic on mica.
Measurements in resonant modes.
Nanolithography.
Electronic control unit
12 DAC (16 bit, 10 sec), 2 - 8 channels ADC (16 bit, 10 sec). DSP digital feedback. Embedded direct frequency synthesizer (0.01 Hz - 10 MHz).
Software
Microscope control software (master software) and data analysis software (client software) for Windows XP.
Master software – local or remote control (network, Internet).
Client software – local or remote real-time data acquisition, variety of filters, mathematical functions and algorithms for data analysis and 3D imaging.
Single Master and Multiple Clients operation. Embedded chat of intercommunication.
Parameters of cryogenic system
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Temperature interval, K
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1.8 – 350
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Sample space diameter, mm
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40
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Helium reservoir, l
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2.2 (3.5)
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Nitrogen reservoir, l
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2.5 (4)
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Temperature stability in the interval 4.2 - 50 K, K*
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±0.05
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Temperature stability in the interval 50 - 300 K, K
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±0.1
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Cooling down time (to 4.2 K), min
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30
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Helium consumption for 4.2 K cooling down, l
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1.4
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Sample change time, min
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5
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Helium consumption at 4.2 K, l/hour
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< 0.1 (0.12)
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Operation time at 1.8 K, hours
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6
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Cryostat dimensions, mm
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Diameter
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200
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Height
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750
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Weight of system, kg
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12
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* – Temperature regulation system tSTAT310x is strongly recommended.
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