Skip to content

Research at St Andrews

Inverse-perovskites A3BO (A = Sr, Ca, Eu/B = Pb, Sn): a platform for control of Dirac and Weyl fermions

Research output: Contribution to journalArticlepeer-review

DOI

Open Access permissions

Open

Author(s)

A. W. Rost, J. Kim, S. Suetsugu, V. Abdolazimi, K. Hayama, J. A. N. Bruin, C. Mühle, K. Kitagawa, A. Yaresko, J. Nuss, H. Takagi

School/Research organisations

Abstract

Bulk Dirac electron systems have attracted strong interest for their unique magnetoelectric properties as well as their close relation to topological (crystalline) insulators. Recently, the focus has been shifting toward the role of magnetism in stabilizing Weyl fermions as well as chiral surface states in such materials. While a number of nonmagnetic systems are well known, experimental realizations of magnetic analogs are a key focus of current studies. Here, we report on the physical properties of a large family of inverse perovskites A3BO (A = Sr, Ca, Eu/B = Pb, Sn) in which we are able to not only stabilize 3D Dirac electrons at the Fermi energy but also chemically control their properties. In particular, it is possible to introduce a controllable Dirac gap, change the Fermi velocity, tune the anisotropy of the Dirac dispersion, and—crucially—introduce complex magnetism into the system. This family of compounds therefore opens up unique possibilities for the chemical control and systematic investigation of the fascinating properties of such topological semimetals.
Close

Details

Original languageEnglish
Article number121114
Number of pages7
JournalAPL Materials
Volume7
Issue number12
DOIs
Publication statusPublished - 31 Dec 2019

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

View graph of relations

Related by author

  1. Strain-stabilized (π,π) order at the surface of Fe1+xTe

    Yim, C. M., Panja, S., Trainer, C., Topping, C., Heil, C., Gibbs, A., Magdysyuk, O., Tsurkan, V., Loidl, A., Rost, A. W. & Wahl, P., 14 Apr 2021, In: Nano Letters. 21, 7, p. 2786-2792 7 p.

    Research output: Contribution to journalArticlepeer-review

  2. 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

  3. Multicritical Fermi surface topological transitions

    Efremov, D. V., Shtyk, A., Rost, A. W., Chamon, C., Mackenzie, A. P. & Betouras, J. J., 13 Nov 2019, In: Physical Review Letters. 123, 20, p. 1-6 6 p., 207202.

    Research output: Contribution to journalArticlepeer-review

  4. Magnetotransport in Sr3PbO antiperovskite

    Suetsugu, S., Hayama, K., Rost, A. W., Nuss, J., Muehle, C., Kim, J., Kitagawa, K. & Takagi, H., 18 Sep 2018, In: Physical Review B. 98, 11, 6 p., 115203.

    Research output: Contribution to journalArticlepeer-review

  5. Ultrafast dynamics and coherent order parameter oscillations under photo-excitation in the excitonic insulator Ta2NiSe5

    Werdehausen, D., Agustsson, S. Y., Kim, M., Shabestari, P., Huang, E., Pokharel, A., Larkin, T., Boris, A., Takayama, T., Lu, Y., Rost, A. W., Chu, H., Yaresko, A., Höppner, M., Schulz, A., Manske, D., Keimer, B., Takagi, H. & Kaiser, S., 8 May 2018, Ultrafast Bandgap Photonics III. Rafailov, M. K. (ed.). SPIE, p. 1-7 7 p. 1063803. (Proceedings of SPIE; vol. 10638).

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

Related by journal

  1. Anisotropic, meandering domain microstructure in the improper ferroelectric CsNbW2O9

    McCartan, S. J., Turner, P. W., McNulty, J. A., Maguire, J. R., McCluskey, C. J., Morrison, F. D., Gregg, J. M. & MacLaren, I., 19 Oct 2020, In: APL Materials. 8, 10, 9 p., 101108.

    Research output: Contribution to journalArticlepeer-review

  2. Sensing of explosive vapor by hybrid perovskites: effect of dimensionality

    Harwell, J. R., Glackin, J. M. E., Davis, N. J. L. K., Gillanders, R. N., Credington, D., Turnbull, G. & Samuel, I. D. W., 10 Jul 2020, In: APL Materials. 8, 9 p., 0771106.

    Research output: Contribution to journalArticlepeer-review

  3. Out-of-plane transport in ZrSiS and ZrSiSe microstructures

    Shirer, K. R., Modic, K. A., Zimmerling, T., Bachmann, M. D., König, M., Moll, P. J. W., Schoop, L. & Mackenzie, A. P., 17 Oct 2019, In: APL Materials. 7, 10, 7 p., 101116.

    Research output: Contribution to journalArticlepeer-review

  4. Some strategies for improving caloric responses with ferroelectrics

    Liu, Y., Scott, J. F. & Dkhil, B., 17 Jun 2016, In: APL Materials. 4, 6, 9 p., 064109.

    Research output: Contribution to journalArticlepeer-review

ID: 264469973

Top