When irradiated with infrared light, certain molecules like metal phthalocyanines vibrate and generate tiny, localized magnetic fields. Researchers have calculated these effects and aim to experimentally prove and manipulate these fields for potential applications in quantum computing. Credit: SciTechDaily.com
When molecules absorb infrared light, they start to vibrate as they receive energy. Andreas Hauser from the Institute of Experimental Physics atused this well-understood process as a basis for exploring whether these vibrations could be harnessed to produce magnetic fields. Since atomic nuclei carry a positive charge, the movement of these charged particles results in the creation of a magnetic field.
According to the calculations, it should be possible to measure the rather low but very precisely localized field strength using nuclear magnetic resonance spectroscopy.
“For proof, but also for future applications, the phthalocyanine molecule needs to be placed on a surface. However, this changes the physical conditions, which in turn influences the light-induced excitation and the characteristics of the magnetic field,” explains Andreas Hauser. “We therefore want to find a support material that has minimal impact on the desired mechanism.”
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