Our distributor Quantum Design has issued an Application Note that describes how to use a our new dedicated ISHE CPW suitable for the CryoFMR probe available for the PPMS/DynaCool/VersaLab platforms.
If we consider a ferromagnet/non-magnetic bilayer (e.g. Ni80Fe20/Pd) undergoing FMR, a diffusive flow of spin from the Ni80Fe20 ferromagnet will enter the non-magnetic Pd layer due to a phenomenon known as spin pumping. Then, via the inverse spin Hall effect (ISHE), which can be significant in non-magnetic layers with a large spin-orbit interaction (e.g. Pt, W, Pd, etc.), this diffusive flow of spins will be converted into a measurable transverse DC voltage. Our new CPW integrates electrical contacts for measuring this ISHE generated voltage and are via the standard sample chamber wiring connected to a separate input on the CryoFMR spectrometer. The ISHE voltage is measured using the same lock-in amplifier used to measure the FMR response.
At the INTERMAG conference in Singapore NanOsc Instruments introduced its new compact set of insert and wave guides for the MPMS 3. This adds yet another cryostat to the range of supported systems for broadband FMR analysis with varying temperature using the CryoFMR spectrometers.
Broadband FMR spectroscopy allows for measurements continuously spanning several 10’s of GHz. Measurements over a wide frequency range allow for significant improvements in accurately extracting a variety of material parameters not accessible by static measurement techniques.
Broadband FMR is particularly well-suited for studying magnetic thin films, which not only form the backbone of fundamental spintronics and magnonics research but are also constituents of current and future technologies focused on magnetic memories, sensors, logic, and microwave signal processing.
NanOsc Instruments displayed the latest additions to its product line of broadband FMR spectrometers, the PhaseFMR-8 for room temperature measurements, and the CryoFMR-8 for variable temperature measurements. These entry level FMR spectrometers with advanced analysis capabilities are excellent for physics education and materials research. The easy to use software provides Lorentzian curve fitting and parameter extraction for both in-plane and out-of-plane analysis of thin films giving the gyromagnetic ratio, saturation magnetization, damping, inhomogeneous broadening, and anisotropy.
Our world-wide distributor Quantum Design, Inc. has installed the first PhaseFMR in India.
We make FMR easy with a very user-friendly software that controls the measurements and extracts important static and dynamic magnetic properties through Kittel function fitting and damping analysis.
The first CryoFMR for China is shipped out. This spectrometer will be used with a Quantum Design Versalab cryostat to provide fast, easy-to-use, and reliable FMR measurements down to 50 K.
NanOsc Instruments ships the first CryoFMR to be installed in South Korea. The spectrometer will be used together with a Quantum Design PPMS for cryogenic FMR analysis.
NanOsc enters the large Chinese material science market with its first shipment to this country of a PhaseFMR spectrometer. The end customer is a major university.
The next continent to experience FMR made easy by using an FRM spectrometer from NanOsc is South America. We have now sold and delivered PhaseFMR and CryoFMR instruments to three continents.
Following orders in 2014, NanOsc AB has now shipped its first two PhaseFMR-40 FMR spectrometers to customers in Sweden and the US. The PhaseFMR-40 is the first commercial turn-key FMR spectrometer offering a continuous frequency range from 2 to 40 GHz and allows users to study a wider range of materials or determine the gyromagnetic ratio and the damping with higher accuracy.