Spontaneous magnetization induced by organic ion intercalation in the layered antiferromagnet MnPSe3
Bibliographic record
Abstract
Exploring novel two-dimensional (2D) magnetic insulators and achieving tunable magnetic properties are fundamental for their potential applications in information processing and storage. In this work, we report a modulation from antiferromagnetic (AFM) order to a state with spontaneous magnetization through the intercalation of tetrabutylammonium (TBA+) ions in the van der Waals layered antiferromagnet MnPSe3. By employing two distinct electrochemical methods, cyclic voltammetry (CV) and chronopotentiometry, we achieve different transition temperatures, spontaneous magnetizations, and in-plane anisotropies. A spontaneous magnetization of ∼0.38 μB/f.u. (∼6.5 emu/g) is observed in the CV-intercalated samples, which is a record value among the organic-ion-intercalated MPX3 (M = Mn, Fe, Ni, and X = S, Se) compounds. We attribute the spontaneous magnetization behavior to possible canted antiferromagnetism, which may be induced by the modified intralayer exchanges resulting from the TBA+ intercalation. Our results provide a feasible approach for inducing and tuning spontaneous magnetization in 2D AFM insulators.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".