Physics and Quantum Technology Applications

spinflex provides powerful solutions to numerous applications in the field of physics and physical-related science and engineering. These solutions can help you reach both scientific and technological breakthroughs. Our products will give you the opportunity to gain a much better understanding of the physical mechanisms of variolous paragenetic systems. Here are some topics in physics where spinflex products can be helpful:

publications employing spinflex products

Optically detected magnetic resonance imaging

(Applied Physics Letters 106, (2015), 034102)

Optically detected magnetic resonance (ODMR) provides ultrasensitive means to detect and image a small number of electron and nuclear spins, down to the single spin level with nanoscale resolution. Despite the significant recent progress in this field, it has never been combined with the power of pulsed magnetic resonance imaging techniques. Here, we demonstrate how these two methodologies can be integrated using short pulsed magnetic field gradients to spatially encode the sample. This result in what we denote as an “optically detected magnetic resonance imaging” technique. It offers the advantage that the image is acquired in parallel from all parts of the sample, with well-defined three-dimensional point-spread function, and without any loss of spectroscopic information. In addition, this approach may be used in the future for parallel but yet spatially selective efficient addressing and manipulation of the spins in the sample. Such capabilities are of fundamental importance in the field of quantum spin-based devices and sensors.

Direct measurement of the flip-flop rate of electron spins in solid state

(Physical Review  Applied 6,  (2016), 044001)

Electron spins in solids have a central role in many current and future spin-based devices, ranging from sensitive sensors to quantum computers (QC).  Many of these apparatuses rely on the formation of well-defined spin structures (e.g., a 2D array) with controlled and well-characterized spin-spin interactions.  While being essential for device operation, these interactions can also result in undesirable effects, such as decoherence.  Arguably, the most important pure quantum interaction that causes decoherence is known as the “flip-flop” process, where two interacting spins interchange their quantum state.  Currently, for electron spins, the rate of this process can only be estimated theoretically, or measured indirectly, under limiting assumptions and approximations, via spin relaxation data.  This work experimentally demonstrates for the first time how the flip-flop rate can be directly and accurately measured by examining spin diffusion processes in the solid state for physically fixed spins.  Under such terms, diffusion can occur only through this flip-flop-mediated quantum state exchange and not via actual spatial motion.  Our approach was implemented on two types of samples, phosphorus-doped 28Si and nitrogen vacancies (NV) in diamond, both of which are significantly relevant to quantum sensors and information processing.  However, while the results for the former sample are conclusive and reveal a flip-flop rate of ~12.3 Hz, for the latter sample only an upper limit of ~0.2 Hz for this rate could be estimated.

Additional Publications

High resolution in-operando microimaging of solar cells with pulsed electrically-detected magnetic resonance

Authors name:
Itai Katz, Matthias Fehr

Journal of Magnetic Resonance 251, (2015), 26-35

Selective addressing and readout of optically detected electron spins

Authors name:
Oleg Zgadzai, Lazar Shtirberg

EPL 117, (2017), 117 10001

Spectroscopy, imaging, and selective addressing of dark spins at the nanoscale with optically detected magnetic resonance

Authors name:
Blank Aharon

physica status solidi (b) 253, (2016) 1167-1176