Skip to content

Research at St Andrews

Observation of inversion, hysteresis, and collapse of spin in optically trapped polariton condensates

Research output: Contribution to journalArticlepeer-review

Author(s)

Yago del Valle-Inclan Redondo, Helgi Sigurdsson, Hamid Ohadi, Ivan A. Shelykh, Yuri G. Rubo, Zacharias Hatzopoulos, Pavlos G. Savvidis, Jeremy J. Baumberg

School/Research organisations

Abstract

The spin and intensity of optically trapped polariton condensates are studied under steady-state elliptically polarized nonresonant pumping. Three distinct effects are observed: (1) spin inversion where condensation occurs in the opposite handedness from the pump, (2) spin and intensity hysteresis as the pump power is scanned, and (3) a sharp “spin collapse” transition in the condensate spin as a function of the pump ellipticity. We show these effects are strongly dependent on trap size and sample position and are linked to small counterintuitive energy differences between the condensate spin components. Our results, which fail to be fully described within the commonly used nonlinear equations for polariton condensates, show that a more accurate microscopic picture is needed to unify these phenomena in a two-dimensional condensate theory.
Close

Details

Original languageEnglish
Article number165311
Number of pages9
JournalPhysical Review B
Volume99
Issue number16
DOIs
Publication statusPublished - 25 Apr 2019

Discover related content
Find related publications, people, projects and more using interactive charts.

View graph of relations

Related by author

  1. Ultralong temporal coherence in optically trapped exciton-polariton condensates

    Orfanakis, K., Tzortzakakis, A., Petrosyan, D., Savvidis, P. & Ohadi, H., 9 Jun 2021, (Accepted/In press) In: Physical Review. B, Condensed matter and materials physics.

    Research output: Contribution to journalArticlepeer-review

  2. Low-threshold polariton lasing in a highly disordered conjugated polymer

    Wei, M., Rajendran, S. K., Ohadi, H., Tropf, L. C., Gather, M. C., Turnbull, G. A. & Samuel, I. D. W., 27 Aug 2019, In: Optica. 6, 9, p. 1124-1129 6 p., 362590.

    Research output: Contribution to journalArticlepeer-review

  3. Low threshold polariton lasing from a solution-processed organic semiconductor in a planar microcavity

    Rajendran, S. K., Wei, M., Ohadi, H., Ruseckas, A., Turnbull, G. A. & Samuel, I. D. W., 18 Jun 2019, In: Advanced Optical Materials. 7, 12, p. 1-7 7 p., 1801791.

    Research output: Contribution to journalArticlepeer-review

  4. Electrically controlled nano and micro actuation in memristive switching devices with on-chip gas encapsulation

    Kos, D., Astier, H. P. A. G., Martino, G. D., Mertens, J., Ohadi, H., De Fazio, D., Yoon, D., Zhao, Z., Kuhn, A., Ferrari, A. C., Ford, C. J. B. & Baumberg, J. J., 23 Aug 2018, In: Small. 14, 34, 8 p., e1801599.

    Research output: Contribution to journalArticlepeer-review

Related by journal

  1. Physical Review. B, Condensed matter and materials physics (Journal)

    Finlay Morrison (Reviewer)

    2007 → …

    Activity: Publication peer-review and editorial work typesPeer review of manuscripts

Related by journal

  1. Ultralong temporal coherence in optically trapped exciton-polariton condensates

    Orfanakis, K., Tzortzakakis, A., Petrosyan, D., Savvidis, P. & Ohadi, H., 9 Jun 2021, (Accepted/In press) In: Physical Review. B, Condensed matter and materials physics.

    Research output: Contribution to journalArticlepeer-review

  2. Decoupled heat and charge rectification as many-body effect in quantum wires

    Stevenson, C. & Braunecker, B., 15 Mar 2021, In: Physical Review. B, Condensed matter and materials physics. 103, 11, 7 p., 115413.

    Research output: Contribution to journalArticlepeer-review

  3. Giant orbital diamagnetism of three-dimensional Dirac electrons in Sr3PbO antiperovskite

    Suetsugu, S., Kitagawa, K., Kariyado, T., Rost, A. W., Nuss, J., Mühle, C., Ogata, M. & Takagi, H., 10 Mar 2021, In: Physical Review B. 103, 11, 11 p., 115117.

    Research output: Contribution to journalArticlepeer-review

  4. Structural phase transitions in the geometric ferroelectric LaTa O4

    Howieson, G. W., Mishra, K. K., Gibbs, A. S., Katiyar, R. S., Scott, J. F., Morrison, F. D. & Carpenter, M., 29 Jan 2021, In: Physical Review. B, Condensed matter and materials physics. 103, 1, 12 p., 014119.

    Research output: Contribution to journalArticlepeer-review

  5. Magnetic surface reconstruction in the van der Waals antiferromagnet Fe1+xTe

    Trainer, C., Songvilay, M., Qureshi, N., Stunault, A., Yim, C. M., Rodriguez, E. E., Heil, C., Tsurkan, V., Green, M. A., Loidl, A., Wahl, P. & Stock, C., 6 Jan 2021, In: Physical Review B. 103, 2, 10 p., 024406.

    Research output: Contribution to journalArticlepeer-review

ID: 258979938

Top