attoTMS

attoTMS

expert transport measurement solution

Integrated software control of all parameters

fully automate complex measurements

in-situ eucentric two-axes sample rotation

turn single solenoid into strong 3D vector magnet

Nanonis TrameaTM fast multi-channel electronics

replace a full rack of electronics with 1 device

Magneto-transport measurements are mostly conducted at variable temperatures and in high magnetic fields; often requiring an arbitrary orientation of the sample in the external field. So far, such measurements have proven to be somewhat cumbersome: expensive vector magnets yielding only limited 3D field strengths, high running costs due to liquid helium, as well as time-consuming software integration of various 3rd party instruments. Thanks to a cooperation between SPECS Zurich and attocube systems, a new user-friendly platform has been developed, which allows for the exploration of a very large phase space at cryogenic temperatures and high magnetic fields. The software integration of our dry magnet cryostat attoDRY2100, a 3D sample rotator (atto3DR) and a powerful measurement electronic (Nanonis Tramea™) combines flexibility & automation of measurement routines with unprecedented speed and signal quality.

The Nanonis Tramea™ includes up to 48 analog inputs and outputs, up to 8 lock-in modules, oscilloscopes and spectrum analyzers, a multi-functional user interface as well as several programming interfaces incl. realtime scripting. Furthermore, the software integrates the automatic control of temperature (1.65 .. 300 K) and magnetic field (9T or more) of the dry cryostat attoDRY2100, as well as an arbitrary orientation between sample surface and magnetic field direction given by the 3D sample rotator atto3DR. Hence, generic n-dimensional sweeps of arbitrary parameters combined with data acquisition are easily possible with only one electronic device.

measurement tools, attotms, atto3dr

atto3DR

3D sample rotator

  • rotate your sample – not the magnet!
  • full magnetic field (e.g. 9 T) in 3D – stronger than any vector magnet!
  • 20 pin chip carrier for fast sample exchange
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measurement tools, attotms, attodry2100

attoDRY2100

variable temperature magnet system

  • temperature range: 1.65 .. 300 K
  • cryogen-free, fully automated T & B control
  • full field @ 300 K & field cooling possible
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measurement tools, attotms, tramea

Nanonis TrameaTM

multi purpose high speed digital electronics

  • 8 .. 48 analog outputs (DC, lock-ins, AWGs,...)
  • 8 .. 24 analog inputs (multimeters, lock-ins, digitizers, oscilloscopes, spectrum analyzers,...)
  • no physical re-wiring required – switch between wiring schemes digitally
Cryogenic Tablet

Specifications

General Specifications
type of instrumenttransport measurement insert for use with attoDRY cryostats with integrated atto3DR double rotator module
sensor head specifics20 pin chip carrier based sample holder mounted on 2 combined rotators with eucentric rotation for 3D angle-dependent transport measurements based on single solenoid magnet
included hardware & softwaretransport measurement insert for attoDRY, 2 break-out boxes, atto3DR, ASH/CC/20 chip carrier sample holder, ANC350/3/RES piezo controller, Nanonis Tramea TRC real-time controller,
TSC signal conversion interface, LD5-1 single lock-in generator, LD5-MF multidemodulator and multi-input option, software license for Tramea, attoCONTROL electronics rack, 19“ rack PC incl. 27“ screen
Nanonis Tramea control electronics
base configuration1x TRCe real-time controller, 1x TSC signal conversion interface and Nanonis V5e software
analog inputs8 low-noise 18-bit analog inputs, differential BNC connectors, +/- 10V input range
analog input bandwidthDC – 100 kHz (-3 dB), 5th-order Butterworth low-pass filter
Input noise density< 150 nV/vHz @ 10 kHz, < 650 nV/vHz @ 10 Hz
analog outputs8 high precision and low noise 20-bit analog outputs (22-bit with hrDAC), differential BNC connectors, +/- 10V output range
analog output bandwidthDC – 40 kHz (-3 dB), 5th – order Butterworth low-pass filter
output noise density< 25 nV/vHz @ 100 Hz, < 75 nV/vHz @ 1 Hz
software upgrade incl.LD5-1 single lock-in generator, LD5-MF multidemodulator and multi-input option
attocube modules for Trameaintegrated control of temperature & magnetic field of an attoDRY2100 and of the two rotator axes of the atto3DR from within the Tramea software
additional information on Tramea specificationssee Nanonis Tramea detailed specification sheet (or contact attocube)
Modes of Operation
general configurationfull flexibility (multi-terminal, 4-probe, 2-probe) via generic analog in- and outputs, software configurable, up to 24 input, and up to 48 output channels measured simultaneously
Sample Positioning
total travel rangefull 3D sphere via ±90° for both closed loop rotators (reserve: ±10°)
step sizeapprox. 1 m° @ 300 K, 0.5 m° @ 4 K
fine scan range40 m° @ 300 K, 6 m° @ 4 K (scan resolution: µ°)
sensor resolutionapprox. 6 m°
repeatabilityapprox. 50 m°
linearityapprox. 1%
sample holderASH/CC/20 fits 20 pin LCCC, connected to 20 wires as twisted pairs
Suitable Operating Conditions
temperature range1.5 K..300 K (dependent on cryostat)
magnetic field range0..15 T+ (dependent on magnet)
operating pressuredesigned for He exchange gas
Suitable Cooling Systems
titanium housing diameter48 mm
compatible cryostatsattoDRY2100, attoLIQUID2000 (others on request)
bore size requirementdesigned for a 2" (50.8 mm) cryostat/magnet bore
Options and Upgrades
TSC add-on(s)8 additional analog in- and outputs per TSC; maximum of 3 TSCs, resulting in 24 outputs and 24 inputs together with base configuration
TSO add-on(s)16 additional analog outputs per TSO; maximum of 2 TSOs, resulting in 50 outputs and 8 inputs together with base configuration
Nanonis Tramea software upgradeslarge range of software upgrades available: multi-channel lock-ins, HR oscilloscope and FFT, programming interface, scripting module, generic PI controller, function generator
signal-amplifiers upgradeseveral different low-noise, switchable gain amplifiers, fully integrated in the attoTMS software as well as in the hardware with power and data cable for remote control
Femto DDPCA-300trans-impedance amplifier, 0.4 fA peak-to-peak noise, switchable gain 1e4 .. 1e13 V/A, bandwidth up to 400 Hz, cable to Tramea included
Femto DLPCA-200trans-impedance amplifier, switchable gain 1e3 .. 1e11 V/A, bandwidth DC/1 Hz ... 500 kHz, cable to Tramea included
Femto DLPVA-100voltage amplifier, switchable gain 20/40/60/80 dB, bandwidth DC .. 100 kHz, switchable to 1 kHz, 5.5 nV/vHz input noise, cable to Tramea included
Nanonis MCVA5differential multichannel preamplifier with 4 independent channels, Gain of 1/10/100/1000, 500 kHz bandwidth, cable to Tramea included
Keysight SMU B2912Aprecision Source/Measure Unit, supports two-channel configuration, minimum source resolution 10 fA/100 nV, minimum measurement resolution 10 fA/100 nV, maximum output 210 V
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