Evidence map›Paper›PMID 37978193›Full record

ArticleNature communications2023

Time, momentum, and energy resolved pump-probe tunneling spectroscopy of two-dimensional electron systems.

H M Yoo, M Korkusinski, D Miravet, K W Baldwin, K West, L Pfeiffer, P Hawrylak, R C Ashoori

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Nature communications, 2023. 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

8 authors.

H M YooDepartment of Physics, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.
M KorkusinskiEmerging Technologies Division, National Research Council of Canada, Ottawa, ON, K1A 0R6, Canada.
D MiravetDepartment of Physics, University of Ottawa, Ottawa, ON, K1N 6N5, Canada.ORCID http://orcid.org/0000-0002-2908-4645
K W BaldwinDepartment of Electrical Engineering, Princeton University, Princeton, NJ, 08544, USA.
K WestDepartment of Electrical Engineering, Princeton University, Princeton, NJ, 08544, USA.
L PfeifferDepartment of Electrical Engineering, Princeton University, Princeton, NJ, 08544, USA.
P HawrylakDepartment of Physics, University of Ottawa, Ottawa, ON, K1N 6N5, Canada.
R C AshooriDepartment of Physics, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA. ashoori@mit.edu.ORCID http://orcid.org/0000-0001-5031-1673

Funding

DOE | SC | Basic Energy Sciences (BES) FG02-08ER46514Gordon and Betty Moore Foundation (Gordon E. and Betty I. Moore Foundation) GBMF4420Gouvernement du Canada | Natural Sciences and Engineering Research Council of Canada (Conseil de Recherches en Sciences Naturelles et en Génie du Canada) RGPIN 2019-05714
6 · The paper itself

Abstract

Real-time probing of electrons can uncover intricate relaxation mechanisms and many-body interactions in strongly correlated materials. Here, we introduce time, momentum, and energy resolved pump-probe tunneling spectroscopy (Tr-MERTS). The method allows the injection of electrons at a particular energy and observation of their subsequent decay in energy-momentum space. Using Tr-MERTS, we visualize electronic decay processes, with lifetimes from tens of nanoseconds to tens of microseconds, in Landau levels formed in a GaAs quantum well. Although most observed features agree with simple energy-relaxation, we discovered a splitting in the nonequilibrium energy spectrum in the vicinity of a ferromagnetic state. An exact diagonalization study suggests that the splitting arises from a maximally spin-polarized state with higher energy than a conventional equilibrium skyrmion. Furthermore, we observe time-dependent relaxation of the splitting, which we attribute to single-flipped spins forming skyrmions. These results establish Tr-MERTS as a powerful tool for studying the properties of a 2DES beyond equilibrium.

Identifiers

PMID37978193
PMCPMC10656415

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