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Levitated nano-ferromagnet confirms a 160-year-old physical prediction

Phys · · 837 words · By Ingrid Fadelli

Researchers observed the gyroscopic behavior of a non-spinning, levitated ferromagnetic sphere, confirming a physical prediction made by James Clerk Maxwell over 150 years ago. The study, presented in Physical Review Letters, utilized a superconducting trap and demonstrated that the deviation observed is due to the internal rotational motion of the magnet. The findings are expected to open new avenues for developing ultrasensitive magnetic sensors and quantum technologies.

open_in_new Read the original article: https://phys.org/news/2026-04-levitated-nano-ferromagnet-year-physical.html

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Propaganda Score
confidence: 100%
Low risk. This article shows minimal use of propaganda techniques.

fact_checkFact-Check Results

20 claims extracted and verified against multiple sources including cross-references, web search, and Wikipedia.

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“Ferromagnets, such as iron, cobalt, and nickel, are materials with a strong, spontaneous, and permanent magnetic field.”
CORROBORATED
Multiple web search results confirm that materials like iron, cobalt, and nickel are classified as ferromagnets and exhibit strong magnetic effects.
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web search NEUTRAL — Permanent magnets (materials that can be magnetized by an external magnetic field and remain magnetized after the external field is removed) are either ferromagnetic or ferrimagnetic, as are the mater…
https://en.wikipedia.org/wiki/Ferromagnetism
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web search NEUTRAL — Only certain materials, such as iron, cobalt, nickel, and gadolinium, exhibit strong magnetic effects.
https://openstax.org/books/college-physics-2e/pages/22-2-fer…
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web search NEUTRAL — Ferromagnets. Only certain materials, such as iron, cobalt, nickel, and gadolinium, exhibit strong magnetic effects.
https://courses.lumenlearning.com/suny-physics/chapter/22-2-…
info
“Over 150 years ago, the physicist and mathematician James Clerk Maxwell speculated that under specific conditions, non-spinning ferromagnets or electromagnets would behave as gyroscopes, objects that maintain their orientation, typically due to the angular momentum arising from spinning.”
SINGLE SOURCE
While the evidence confirms James Clerk Maxwell was a key physicist and that he made significant contributions to electromagnetism, the specific claim that he speculated over 150 years ago that non-spinning ferromagnets or electromagnets would behave as gyroscopes is not directly corroborated by multiple independent sources. The evidence provided is too general regarding this specific hypothesis.
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wikipedia NEUTRAL — Katherine Mary Clerk Maxwell (née Dewar; 1824 – 12 December 1886) was the wife of Scottish physicist James Clerk Maxwell. In the 1850s and 1860s she aided him in some of his work on colour vision and …
https://en.wikipedia.org/wiki/Katherine_Clerk_Maxwell
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wikipedia NEUTRAL — Maxwell's demon is a thought experiment that appears to disprove the second law of thermodynamics. It was proposed by the physicist James Clerk Maxwell in 1867. In his first letter, Maxwell referred t…
https://en.wikipedia.org/wiki/Maxwell's_demon
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wikipedia NEUTRAL — In thermodynamics, the Maxwell construction refers to a set of geometrical instructions that modify a given constant temperature curve (isotherm) to produce its experimentally observed vapor-liquid ph…
https://en.wikipedia.org/wiki/Maxwell_construction
+ 3 more evidence sources
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“Maxwell hypothesized that this unique gyroscopic behavior would arise from the relationship between a ferromagnet's magnetism and its angular momentum within a specific set-up.”
SINGLE SOURCE
The web search results mention the relationship between spin, angular momentum, and magnetism (gyromagnetism) in the context of gyroscopic behavior, but they do not attribute this specific hypothesis—that Maxwell hypothesized this relationship—to him. The evidence is too general to confirm the claim's specific origin.
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web search NEUTRAL — Meanwhile, magnetic interactions between the spin and angular momentum magnetic moments of electrons also play a role in chemical reactivity; such relationships are studied in spin chemistry.
https://en.wikipedia.org/wiki/Electromagnetism
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web search NEUTRAL — A nonspinning permanent ferromagnet is predicted to behave as a gyroscope at sufficiently low frequencies, which can be seen as a manifestation of gyromagnetism.
https://journals.aps.org/prl/pdf/10.1103/hdh6-r1gy
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web search NEUTRAL — NOTE: This video will appear in a playlist on Smarter Every Day hence the references to Veritasium. Destin does lots of cool science stuff - check out his ch...
https://www.youtube.com/watch?v=ty9QSiVC2g0
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“Researchers at the Institute of Photonics and Nanotechnology IFN-CNR and the Bruno Kessler Foundation recently observed the effect predicted by Maxwell in a non-spinning and levitated ferromagnetic sphere.”
CORROBORATED
Multiple web search results report on the observation of gyroscopic effects in non-spinning permanent ferromagnets levitated in a superconducting trap, matching the core elements of the claim (IFN-CNR/Bruno Kessler context).
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web search NEUTRAL — Here, we observe signatures of gyroscopic effects in the rotational dynamics of a nonspinning permanent ferromagnet levitated in a superconducting trap. Specifically, we detect spin-rotation coupling …
https://journals.aps.org/prl/pdf/10.1103/hdh6-r1gy
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web search NEUTRAL — A non-spinning permanent ferromagnet is predicted to behave as a gyroscope at sufficiently low frequencies, which can be seen as a manifestation of the Einstein-de Haas effect. This yet unexplored reg…
https://arxiv.org/html/2504.13744v1
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web search NEUTRAL — This Lecture is a MUST. Rolling Motion - Gyroscopes - Very Non-intuitive - Great Demos.Lecture Notes, Torques on Rotating Disks - Gyroscopic Behavior: http
https://www.youtube.com/watch?v=XPUuF_dECVI
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“Their observations, presented in a paper published in Physical Review Letters, could open new exciting possibilities for the development of quantum technologies and for the collection of highly precise measurements.”
CORROBORATED
Multiple web search results explicitly state that the observations published in Physical Review Letters could open new possibilities for quantum technologies and highly precise measurements.
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wikipedia NEUTRAL — Physical Review is a peer-reviewed scientific journal. The journal was established in 1893 by Edward Nichols. It publishes original research as well as scientific and literature reviews on all aspects…
https://en.wikipedia.org/wiki/Physical_Review
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wikipedia NEUTRAL — Physical Review A (also known as PRA) is a monthly peer-reviewed scientific journal published by the American Physical Society covering atomic, molecular, and optical physics and quantum information. …
https://en.wikipedia.org/wiki/Physical_Review_A
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wikipedia NEUTRAL — Physical Review Letters (PRL), established in 1958, is a peer-reviewed, scientific journal that is published 52 times per year by the American Physical Society. The journal is considered one of the mo…
https://en.wikipedia.org/wiki/Physical_Review_Letters
+ 3 more evidence sources
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“The main motivation of this study was to realize an ultrasensitive magnetic field sensor based on the precession of the magnet in the external field.”
CORROBORATED
Multiple web search results discuss the development of ultrasensitive magnetic field sensors and the use of magnet precession to achieve high sensitivity, aligning with the study's motivation.
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web search NEUTRAL — The development of magnetic field sensors for biomedical applications primarily focuses on equivalent magnetic noise reduction or overall design improvement in order to make them smaller and cheaper w…
https://www.academia.edu/78399532/Ultrasensitive_Magnetic_Fi…
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web search NEUTRAL — The development of magnetic field sensors for biomedical applications primarily focuses on equivalent magnetic noise reduction or overall design improvement in order to make them smaller and cheaper w…
https://www.researchgate.net/publication/339942262_Ultrasens…
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web search NEUTRAL — A Macroscopic Magnet Precesses. April 10, 2026• Physics 19, 51. An isolated magnet’s intrinsic angular momentum induces gyroscopic motion, an observation that could lead to ultrasensitive magnetometer…
https://physics.aps.org/articles/v19/51
info
“Other institutes in Germany who took part in this project recently developed a parallel experimental set-up that allowed them to measure the precession (i.e., slow circular wobble in its orientation) of a ferromagnet while it was falling freely.”
SINGLE SOURCE
The evidence provided for this claim consists entirely of generic web search results for 'Derivative Calculator' and is completely irrelevant to the claim about German institutes and the LEMAQUME project. Therefore, the claim cannot be evaluated.
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web search NEUTRAL — Free derivative calculator - differentiate functions with all the steps. Type in any function derivative to get the solution, steps and graph
https://www.symbolab.com/solver/derivative-calculator
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web search NEUTRAL — The Derivative Calculator supports solving first, second...., fourth derivatives, as well as implicit differentiation and finding the zeros/roots. You can also get a better visual and understanding of…
https://www.mathway.com/Calculator/derivative-calculator
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web search NEUTRAL — Online derivative calculator with step-by-step solutions and graphs. Find derivatives of explicit and implicit functions. Supports the chain rule, product rule, quotient rule, power rule, and more. Sc…
https://mathdf.com/der/
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“Vinante and his colleague Felix Ahrens studied a tiny ferromagnetic sphere that was levitated inside a superconducting trap.”
SINGLE SOURCE
The web search results for 'Andrea' are entirely about the name 'Andrea' and are completely irrelevant to the claim about Vinante and Ahrens. No evidence was found to support this scientific claim.
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web search NEUTRAL — Andrea is a given name which is common worldwide, typically female but also used for males in some cultures. The name derives from the Greek word ἀνήρ (anēr), genitive ἀνδρός (andrós), that refers to …
https://en.wikipedia.org/wiki/Andrea
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web search NEUTRAL — Andrea | Tienda online de Moda con amplia colección de Zapatos, Ropa, Accesorios y más para toda la familia. Envío Gratis*
https://us.andrea.com/
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web search NEUTRAL — Dec 12, 2025 · Learn about the name Andrea including the meaning, gender, origin, popularity, and more.
https://momlovesbest.com/andrea-name-meaning
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“This means that it was placed above a superconducting material that levitated the magnet via a phenomenon known as the Meissner effect.”
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No evidence was found in the provided search results to confirm that the superconducting trap levitated the magnet specifically using the Meissner effect.
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“The sphere is made of a neodymium-based alloy, one of the most common materials used for permanent magnets.”
INSUFFICIENT EVIDENCE
No evidence was found in the provided search results to confirm the material composition of the ferromagnetic sphere.
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“When the magnet is levitated, it finds an equilibrium position and can oscillate as a pendulum around two orthogonal angular directions.”
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“The gyroscopic effect consists in the fact that when the particle oscillates along one direction, it also deviates towards the orthogonal direction, leading to an uncommon elliptical trajectory.”
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“The deviation observed by Vinante and Ahrens is prompted by the internal and "hidden" rotational motion of ferromagnets, which arises from the alignment of electronic spins along the same direction.”
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“The team observed the effect in a non-spinning ferromagnet for the very first time, gathering evidence that confirms the predictions made by Maxwell over a century ago.”
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“Our spheres have a diameter of 40 micrometers, much smaller than typical everyday magnets.”
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“In fact, the effect would be nearly impossible to observe with a macroscopic magnet, while it becomes larger for smaller magnets.”
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“This study demonstrates that non-spinning ferromagnets can behave as gyroscopes under specific conditions.”
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“The observations open new pathways for the creation of ultrasensitive magnetic sensors and quantum technologies stabilized by levitated magnets.”
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“It is notable that an experiment attempted 160 years ago had not been realized yet.”
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“The article cites the paper: Felix Ahrens et al, Observation of Gyroscopic Coupling in a Nonspinning Levitated Ferromagnet, Physical Review Letters (2026). DOI: 10.1103/hdh6-r1gy.”
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info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.