Combining forces
Measure your samples at cryogenic temperatures
The attoNVM, jointly developed by attocube systems AG and QZabre AG, is the first commercial cryogenic scanning NV magnetometer integrated into a dry cryostat platform. It combines ultra-low vibration engineering with quantum magnetic sensing to enable fully quantitative magnetic imaging across a wide temperature range.
Key features and advantages
- State of the art magnetic field sensitivity and photon count rate
- Ultra-low vibrations and thermal drift for ultimate stability over long measurement cycles
- Measure samples from 2K up to 300K, continuously
- Swiftly and safely exchangeable NV tips with integrated MW antenna for advanced scanning microscopy
- Fully integrated hardware and software stack
- Calibration-free, quantum-based magnetic field detection, check out how it works
2K to 300K continuous temperature range
Low temperature demonstration measurements
Many of the most fascinating phenomena in condensed matter physics only emerge at low temperatures, where thermal fluctuations no longer obscure subtle quantum effects and interactions can form new exotic phases of matter. Cryogenic NV magnetometry enables direct, quantitative nanoscale imaging of these states, revealing magnetic textures and quantum phases that are inaccessible at room temperature.
Ir/Fe/Co/Pt at 2.9K
Magnetic domain imaging of an Ir/Fe/Co/Pt multilayer acquired by continuous-wave ODMR with a 50 nm tip–sample distance and 20 nm pixel spacing.
No post-processing required. Sample courtesy of Prof. Anjan Soumyanarayanan (A*STAR, Singapore).
BSCCO at 71K
Vortex lattice measurement in BSCCO-2212 revealing 26 vortices in agreement with theoretical expectations.
High spatial fidelity achieved in a measurement time of 2 h 40 min.
Van der Waals Magnet at 70K
Domain mapping in twisted double-bilayer CrSBr demonstrating stable long-duration imaging under cryogenic conditions.
Sample courtesy of Prof. Alexander Högele (LMU, Munich).
System description
At a glance
attoDRY2200 cryostat
Ultra-low vibrations cryostat for ultra-sensitive SPM measurements
- Closed-cycle cryostat setting a new benchmark in ultra-low vibration, making liquid cryostats obsolete even for sensitive AFM measurements
- Automated control via eNSPIRE electronics with web-server, live plotting & logging, and versatile API
- Top-loading probe with free-beam access in vector magnetic fields for versatile SPM on 2D materials
- Explore full options on the attocube website
High performance NV probes
Integrated MW antenna
- QST NV tips guaranteed photo-stable and sensitive at cryogenic temperatures
- Microwave line and diamond probe integrated on one carrier chip, pre-aligned for easy setup and tip exchange
- Microwave line isolated from AFM tuning fork to minimize heating and drift
- Choose your quality and diamond cut and order it now!
Swift check up of your sample
MOKE upgrade
- MOKE upgrade for quick preliminary sample inspection before detailed NV magnetometry measurements
- Full polar MOKE detection in H/V basis with biased photodetector and remotely controllable waveplate
- 500 kHz bandwidth detector, fully integrated into QS3 software
| General | |
| Instrument type | Combined confocal (CFM) and atomic force microscope (AFM) with microwave excitation for scanning ODMR |
| Scanning protocols | NV scanning mode (cw-ODMR), quench mode, iso-B mode, AFM in contact and fixed height |
| Pulsed protocols | Rabi, Ramsey, Spin-Echo, CPMG, XY4, XY8 |
| Modes of Operation | |
| Imaging modes | ODMR, AFM, CFM, widefield, MOKE |
| Slope compensation | 2-axis scan plane correction |
| Z feedback | AFM: PI feedback loop for amplitude setpoint (AM) or frequency modulation (FM) using included PLL |
| RMS z-noise (BW = 200 Hz) | < 0.4 nm @ RT, < 2.5 nm @ LT |
| Resolution | |
| Z bit resolution @ 4 K | 25 pm at 2.4 µm scan range |
| Confocal Unit | |
| Configuration | Compact and modular design, two optical channels: one excitation and one detection channel |
| Compatible LT-objective | LT-APO/Raman532 |
| Inspection unit | Sample imaging with large field of view: ~55 µm |
| Illumination | |
| Excitation wavelength | 515 nm default (others on request) |
| Detection | |
| Detection mode | ODMR, fluorescence |
| ODMR contrast at base temperature | > 8% |
| Sample Positioning | |
| Total travel range | 2 × 3 x 2.5 mm³ (closed loop, independent for tip and sample) |
| Step size | 0.05 – 3 µm @ 300 K, 10 – 500 nm @ 4 K |
| Fine scan range | 30 × 30 × 4.3 µm³ @ 300 K, 18 × 18 × 2 µm³ @ 4 K (open loop) |
| Sample holder | Ti plate with integrated heater and calibrated temperature sensor |
| Operating Conditions | |
| Temperature range | < 1.8 – 300 K (quench mode), < 4 – 300 K (cw-ODMR) |
| Magnetic field range | 9/1/1 or 1/1/1 Tesla |
| Operating pressure | He exchange gas |
| Cooling Systems | |
| Titanium housing diameter | 48 mm |
| Bore size requirement | 2" (50.8 mm) cryostat/magnet bore |
| Compatible cryostats | attoDRY2200 |
| Options & Upgrades | |
| Closed loop upgrade | Resistive encoder, range 3 mm, sensor resolution ~200 nm, repeatability 10 µm |