Nicola Spaldin


Last Name

Spaldin

First Name

Nicola

ORCID

0000-0003-0709-9499

Organisational unit

03903 - Spaldin, Nicola A. / Spaldin, Nicola A.

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Publications1 - 10 of 183
  • High-temperature multiferroicity and strong magnetocrystalline anisotropy in 3d-5d double perovskites
    Item type: Journal Article
    Lezaic, Marjana; Spaldin, Nicola (2011)
    Physical Review B
  • Nonlinear lattice dynamics as a basis for enhanced superconductivity in YBa2Cu3O6.5
    Item type: Journal Article
    Mankowsky, Roman; Subedi, Alaska; Först, Michael; et al. (2014)
    Nature
  • History of ferroelectrics – a crystallography perspective
    Item type: Other Publication
    Spaldin, Nicola; Seshadri, Ram (2021)
    IUCr Newsletter
  • Strain and ferroelectric soft-mode induced superconductivity in strontium titanate
    Item type: Journal Article
    Dunnett, Kirsty; Narayan, Awadhesh; Spaldin, Nicola; et al. (2018)
    Physical Review B
  • Scaling Behaviour and Beyond Equilibrium in the Hexagonal Manganites
    Item type: Journal Article
    Griffin, Sinéad M.; Lilienblum, Martin; Delaney, Kris T.; et al. (2012)
    Physical Review X
    We show that the improper ferroelectric phase transition in the multiferroic hexagonal manganites displays appropriate symmetry-breaking characteristics for testing the Kibble-Zurek mechanism originally proposed to describe early-universe phase transitions. We present an analysis of the Kibble-Zurek theory of topological defect formation applied to the hexagonal manganites, discuss the conditions determining the range of cooling rates in which Kibble-Zurek behavior is expected, and show that recent literature data are consistent with our predictions. Finally, we explore experimentally the crossover out of the Kibble-Zurek regime and find a surprising reversal of the scaling behavior.
  • Strain-induced magnetic anisotropy in epitaxial thin films of the spinel CoCr2O4
    Item type: Journal Article
    Heuver, Jeroen A.; Scaramucci, Andrea; Blickenstorfer, Y.; et al. (2015)
    Physical Review B
  • Chiral phonons in quartz probed by X-rays
    Item type: Journal Article
    Ueda, Hiroki; García-Fernández, Mirian; Agrestini, Stefano; et al. (2023)
    Nature
    The concept of chirality is of great relevance in nature, from chiral molecules such as sugar to parity transformations in particle physics. In condensed matter physics, recent studies have demonstrated chiral fermions and their relevance in emergent phenomena closely related to topology1–3 . The experimental verifcation of chiral phonons (bosons) remains challenging, however, despite their expected strong impact on fundamental physical properties4–6 . Here we show experimental proof of chiral phonons using resonant inelastic X-ray scattering with circularly polarized X-rays. Using the prototypical chiral material quartz, we demonstrate that circularly polarized X-rays, which are intrinsically chiral, couple to chiral phonons at specifc positions in reciprocal space, allowing us to determine the chiral dispersion of the lattice modes. Our experimental proof of chiral phonons demonstrates a new degree of freedom in condensed matter that is both of fundamental importance and opens the door to exploration of new emergent phenomena based on chiral bosons.
  • Multiferroics: Past, present, and future
    Item type: Journal Article
    Spaldin, Nicola (2017)
    MRS Bulletin
    This article provides a personal guided tour of multiferroic materials, from their early days as a theoretical curiosity, to their position today as a focus of worldwide research activity poised to impact technology. The article begins with the history of, and the answer to, the question of why so few magnetic ferroelectric multiferroics exist, then gives a survey of the mechanisms and materials that support such multiferroicity. After discussing the tremendous progress that has been made in the magnetoelectric control of magnetic properties using an electric field, some unusual applications of multiferroics in high-energy physics and cosmology are outlined. Finally, the most interesting open questions and future research directions are addressed.
  • Interface and surface stabilization of the polarization in ferroelectric thin films
    Item type: Journal Article
    Gattinoni, Chiara; Strkalj, Nives; Härdi, Rea; et al. (2020)
    Proceedings of the National Academy of Sciences
  • Magnetoelectroelastic control of magnetism in an artificial multiferroic
    Item type: Journal Article
    Heidler, Jakoba; Fechner, Michael; Chopdekar, Rajesh V.; et al. (2016)
    Physical Review B
Publications1 - 10 of 183