Evidence map›Paper›PMID 41424328›Full record

ArticleNano letters2026

Low-Field Optical Polarization in Type-II Quantum Dots via Nuclear-Driven Dark State Mixing.

Gabriel M Jacobsen, Vinicius A de Oliveira, Baolai Liang, Morgan E Ware, Gregory J Salamo, Gilmar E Marques, Yuriy I Mazur, Victor Lopez-Richard, Marcio D Teodoro

Abstract read
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In one paragraph

Article in Nano letters, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Gabriel M JacobsenDepartment of Physics, Federal University of São Carlos, 13565-905, São Carlos, São Paulo, Brazil.ORCID 0000-0001-6364-4549
Vinicius A de OliveiraDepartment of Physics, Federal University of São Carlos, 13565-905, São Carlos, São Paulo, Brazil.
Baolai LiangDepartment of Electrical and Computer Engineering, California NanoSystems Institute, University of California - Los Angeles, Los Angeles, California 90095, United States.
Morgan E WareInstitute for Nanoscience and Engineering, University of Arkansas, Fayetteville, Arkansas 72701, United States.ORCID 0000-0002-9998-4139
Gregory J SalamoInstitute for Nanoscience and Engineering, University of Arkansas, Fayetteville, Arkansas 72701, United States.
Gilmar E MarquesDepartment of Physics, Federal University of São Carlos, 13565-905, São Carlos, São Paulo, Brazil.
Yuriy I MazurInstitute for Nanoscience and Engineering, University of Arkansas, Fayetteville, Arkansas 72701, United States.ORCID 0000-0002-0884-6049
Victor Lopez-RichardDepartment of Physics, Federal University of São Carlos, 13565-905, São Carlos, São Paulo, Brazil.ORCID 0000-0002-7897-3860
Marcio D TeodoroDepartment of Physics, Federal University of São Carlos, 13565-905, São Carlos, São Paulo, Brazil.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Semiconductor quantum dots (QDs) offer a rich landscape for spin control and quantum light emission. While most studies have focused on type-I band alignment, the potential of type-II systems remains underexplored. Here, we report low-field optical polarization in type-II In(Ga)As/GaAsSb QDs, enabled by hyperfine-induced mixing between bright and dark excitons via level anticrossing under magnetic fields as low as 0.17 T. The weak-field regime arises from the suppressed wave function overlap, yielding a reduced electron-hole exchange interaction. A theoretical model based on the spin Hamiltonian and the spin-split state populations accurately captures the observed mirror-symmetric luminescence helicity, reproducing the experimental polarization response. Additionally, polarization recovery measurements confirm the role of nuclear spin interactions in mediating the in-plane electron spin precession. Our work demonstrates an alternative route for light polarization control using weak magnetic fields and nonresonant linear excitation, establishing type-II QDs as promising platforms for compact sources of circularly polarized light.

Indexed as

Dark statesNuclear spinsOptical polarizationQuantum dots (QDs)State hybridizationType-II

Identifiers

PMID41424328
PMCPMC12810464

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.