The approach: rethink everything
As part of the project charter, the team had no constraints. Our approach was to design a completely new system for the ultimate in performance and usability.
We developed novel measurement techniques and reimagined each part of the system—from the mechanics of loading a sample to the fluidity of the all new software interface—to create a next generation VSM capable of quickly characterizing the magnetic properties of a broad range of materials, especially very low moment samples.
Focused on leading-edge research
The 8600 Series VSM enables better measurements in less time, accelerating magnetics research and supporting the study of novel, low moment, and hybrid materials.
Resulting from extensive design innovations that lower the noise floor and increase sampling speed, the 8600 VSM system brings new levels of measurement performance to magnetic characterization. The system features ultra-high sensitivity (down to 15 nemu), wide dynamic range, faster field ramping (10,000 Oe/s) and rapid data acquisition (up to 10 ms/pt). A complete -2 T to +2 T hysteresis loop with 3,000 measurement points can be completed in about 30 seconds.
Field setting resolution of 1 mOe is available across the entire measurement range, and especially helpful in regions where moment gradient ΔM is high. This fine resolution, combined with high sensitivity and fast measurement speed, make the 8600 Series ideal for first order reversal curve (FORC) measurements, which inherently involve very large data sets.
Lake Shore's significant background in FORC guided the 8600 Series development, which set out to ensure that FORC measurements were fully supported and convenient to make. The resulting new VSM system not only performs these complex measurement routines with great speed and precision, but also provides built-in tools to ensure that configuring and managing FORC profiles is very straightforward.
Convenience is a primary focus of the 8600 Series, starting with the QuickLIGN™ sample rod exchange, which can be accomplished easily with one hand. When variable temperature studies are needed via cryostat, oven, or wide-range SSVT, the 8600 Series VSM has significantly streamlined the process of adjusting the pole gap and installing and configuring the temperature option. Overall time required is reduced to well under 5 minutes, with the system software auto-detecting the type of temperature option and reconfiguring settings instantly.
While the 8600 Series software provides a broad range of measurement flexibility, Lake Shore knows that researchers are often interested in trying new measurement protocols. The software incorporates a full scripting engine and encourages users to either edit and adapt the standard protocol scripts provided, or create their own.
The powerful combination of measurement sensitivity, speed, integrated FORC routines, convenience, and adaptability make the 8600 Series VSM an ideal platform for advanced magnetics research.