Système de source et de mesure synchrone M81-SSM
Lake Shore CryotronicsLe système Lake Shore MeasureReady™ M81-SSM (Synchronous Source and Measure) offre une approche simple pour les applications avancées de mesures électriques. Il réduit nettement la complexité matérielle des ensembles composés d'instruments à fonction spécifique.
L’ensemble est constitué de sources de courant continu et alternatif synchronisées avec une mesure de courant continu et alternatif, et offre la sensibilité d’une détection synchrone.
Une configuration M81 assure des mesures intrinsèquement synchronisées de 1 à 3 canaux de source et de 1 à 3 canaux de mesure et peut donc être facilement adaptée à une large gamme de matériaux et d'applications de recherche.
- Tous les canaux de source et de mesure peuvent fonctionner en courant continu et alternatif jusqu'à 100 kHz.
- Concept modulaire, qui convient parfaitement à une application spécifique dans le domaine des mesures électriques.
- Horloge d'échantillonnage commune DAC/ADC pour une synchronisation cohérente de la source et de la mesure.
- Optimisé pour les mesures des fondamentales, des harmoniques et des phases en courant alternatif et de polarisation en courant continu.
Plus d'informations
The M81-SSM provides DC and AC stimulus and measurement capabilities for electrical characterizing of materials and devices under cryogenic temperatures up to high-temperature environments.
Choose a combination of differential current source and voltage measurement modules for low-resistance applications. Or mix and match with additional voltage source and current measurement modules for complex higher-impedance or gate-biasing applications where precise voltage control and sweeping test regimes are required.
Unlike a narrow-bandwidth DC system, these modules operate from very low frequencies to 100 kHz. You can select a measurement bandwidth to avoid 1/f noise or avoid other bands where test environment noise is highest.
The system’s MeasureSync™ technology samples all sourcing and measurement channels at precisely the same time, enabling multiple DUTs to be tested under identical conditions so you can obtain consistent data.
The included MeasureLINK™ software provides configurable measurement scripts and loops to support a variety of applications and for an easy integration with Lake Shore as well as with third-party systems.
These combined capabilities make the M81‑SSM a superior solution for characterizing several test structures, including nanostructures, single- and multilayer atomic structures, MEMs, quantum structures, organic semiconductors, and superconducting materials.
Caractéristiques techniques
M81 instrument - source channels
Source channel functions: DC, sine, triangle (up to 5 kHz), square (up to 5 kHz)
Source sync functions: Synchronize to another channel or external reference input
Frequency range: 100 µHz to 100 kHz (or module bandwidth, whichever is lesser)
Frequency resolution: Greater of 100 µHz, 6 digits
Frequency accuracy: 0.06%
M81 instrument - measure channels
Measure channel functions: DC, AC (RMS, peak), and lock-in (X and Y, R and Θ)
Lock-in reference: Any source channel, or external reference input
Reference in: BNC—sine >100 mV p – p ≥0.1 Hz; square ≥3.3 V
Reference out: BNC—3.3 V square
Total harmonic distortion: <0.1% from DC to 100 kHz, typical
Sample rate: 375 kSa/s
Warm-up time: 60 min to achieve specified accuracy
VM-10 voltage measure module
Input coupling: DC or AC (0.1 Hz)
Ranges: 10 V, 1 V, 100 mV, 10 mV; seamless, automatic transitions
Best sensitivity: <1 nV (10 mV range, 10 s, 95% confidence interval)
Input impedance: 100 MΩ, 120 pF
Leakage current: <15 pA
CMRR: 80 dB up to 1 kHz
BCS-10 balanced current source module
Ranges: 100 mA, 10 mA, 1 mA, 100 μA, 10 μA, 1 μA, 100 nA, 10 nA; automatic selection
Compliance: 20 V differential, 10 V single-ended (non-settable)
Maximum power: 1 W, 4-quadrant operation
CMR modes: Off, internal, external
Coupling: DC or AC (1 Hz)
Load impedance: Stability maintained with reactive loads up to 50 µF or 1 mH (with 100 Ω damping)
CM-10 current measure module
Ranges: 100 mA, 10 mA, 1 mA, 100 μA, 10 μA, 1 μA, 100 nA, 10 nA, 1 nA; automatic transitions
Input offset voltage: <50 µV
Leakage current: Greater of 10 ppm of range, 1 pA
Settable bias voltage: ±10 V
Bias voltage settable resolution: 320 µV
Best sensitivity: <10 fA (1 nA range, 10 s, 95% confidence interval)
VS-10 voltage source module
Ranges: V: 10 V, 1 V, 100 mV, 10 mV; AC range can be independently set lower than the DC range; automatic selection
Current limit: Settable up to 100 mA peak
Maximum power: 1 W, 4-quadrant operation
Output impedance: <150 mΩ
Load impedance: Stability maintained with reactive loads up to 50 µF or 1 mH (with 100 Ω damping)
Applications
DC transport: I-V curves, 4-wire
(VS module + CM module, primarily)
Ideal for: 2D materials, nanowires, organic semiconductors
M81 advantages: Low-voltage source noise, low-current measure noise
AC transport: AC resistance, sheet resistance, and AC current Hall
(BCS module + VM module)
Ideal for: Metal-insulator transitions, 2D materials, superconducting materials
M81 advantages: AC current Hall: synchronous measurement of resistance and Hall voltages; and simultaneous measurement of up to three devices in a cryostat at different frequencies
Photodiodes and phototransistors
(CM module + occasionally VS module)
Ideal for: IR sensitive materials, solar‑blind materials, 2D materials
M81 advantages: Programmable offset voltage source
Spin transport
(DC/AC: BCS module + VM module)
Ideal for: Spin-orbit torque (SOT), non‑local resistance, spin valves
M81 advantages: SOT: synchronous measurement of resistance, Hall voltages, and harmonic Hall voltages
Differential conductance
(VS module + CM module)
Ideal for: MIS junctions, Josephson junctions, defect characterization in transistors
M81 advantages: Junctions: dual DAC AC and DC sourcing (source at appropriate range)
Thermal transport
(AC, BCS module + VM module)
Ideal for: Thermoelectric materials, 1D materials
M81 advantages: Phase-correlated current sources, synchronous harmonic detection
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Quantum Design S.A.R.L.
Avenue de l’Atlantique
Bâtiment Fuji Yama
91940 Les Ulis
France
| Tél. : | 01 69 19 49 49 |
| Email : | franceqd-europe.com |
