From nonmagnetic to magnetic: A 2D semiconductor with electrically tunable magnetism

Researchers from the National University of Singapore, in collaboration with scientists from institutions in Switzerland, the Czech Republic and Germany, have demonstrated a way to introduce magnetism into an otherwise nonmagnetic. The science-journalism coverage adds useful context, while the strongest evidential footing still comes from the underlying data, papers or institutional documentation.

The significance lies in physics only takes a result seriously when the measurement chain remains robust under scrutiny. Experimental particle physics and precision metrology both operate in regimes where the signal sits far below the background noise, and where systematic uncertainties can mimic new physics if not controlled rigorously. The history of the field contains numerous anomalies that generated theoretical excitement before better data showed them to be artifacts, and it also contains genuine discoveries that were initially dismissed as noise. The difference is almost always resolved by independent replication with different instruments and different systematics. The findings, published in Science Advances, establish a new platform for investigating electrically controllable magnetism in atomically thin materials, with potential. Editors have highlighted the following attributes while ensuring the content's credibility: The study, led by assistant professor Ahmet Avsar from the Department of Materials.

Student Qi Zhang as the first author, demonstrates how magnetism can be introduced into an air-stable 2D semiconductor and subsequently controlled through electrical gating. The researchers focused on platinum diselenide (PtSe 2), an air-stable layered material whose electronic properties change dramatically with thickness.

By introducing a small concentration of iron (Fe) atoms into the PtSe 2 crystal, the team induced magnetic order while retaining the material's thickness-dependent electronic. Bulk Fe-doped PtSe 2 exhibits ferromagnetism, in which magnetic moments tend to align in the same direction, with a Curie temperature of approximately 320 K, which is slightly.

In five-layer semiconducting devices, it increased from approximately 52 K to 105 K as the carrier concentration was reduced. Discover the latest in science, tech, and space with over 100, 000 subscribers who rely on Phys. org for daily insights.

The broader interest lies as much in the method as in the headline number, because a durable measurement procedure can travel farther than a single result. When experimental physicists develop a technique that achieves new sensitivity or controls a previously uncharacterized systematic, that methodological contribution persists even if the specific measurement is later revised. This is one reason why precision physics experiments often generate long-term value that is not immediately visible in the original publication.

This story is part of Science X Dialog, where researchers can report findings from their published research articles. Qi Zhang et al, Electrical control of induced magnetism in an air-stable two-dimensional semiconductor, Science Advances (2026).

Because this item comes through Phys. org Physics as science journalism, it should be treated as contextual reporting rather than primary evidence. Good science reporting can identify why a result matters, connect it to the wider literature and make technical work readable, but the decisive evidence remains in the original paper, dataset, mission release or technical record. That distinction is especially important when a story is later repeated by aggregators, because repetition increases visibility, not evidential strength.

The next step is more measurement, tighter systematic control and scrutiny from groups whose experimental setups are genuinely independent. In experimental particle physics and precision metrology, the threshold for a discovery claim is a five-sigma excess surviving multiple analyses; an intriguing signal at lower significance is a reason to run more experiments, not a reason to revise the textbooks. Next-generation experiments currently under construction or commissioning will revisit several of the open questions that give the current result its context.

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