Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

On the relationship between topological and geometric defects

Journal Article · · Journal of Physics. Condensed Matter
 [1];  [2]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)
  2. ETH Zurich (Switzerland)
The study of topology in solids is undergoing a renaissance following an increase in interest in the properties of ferroic domain walls as well as recent discoveries regarding skyrmionic lattices. Each of these systems possess a property that is 'protected' in a symmetry sense, and is defined rigorously using a branch of mathematics known as topology. In this article we review the formal definition of topological defects as they are classified in terms of homotopy theory, and discuss the precise symmetry-breaking conditions that lead to their formation. We distinguish topological defects from defects that arise from the details of the stacking or structure of the material but are not protected by symmetry, and we propose the term 'geometric defects' to describe the latter. We provide simple material examples of both topological and geometric defect types, and discuss the implications of the classification on the resulting material properties.
Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1393246
Journal Information:
Journal of Physics. Condensed Matter, Journal Name: Journal of Physics. Condensed Matter Journal Issue: 34 Vol. 29; ISSN 0953-8984
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English

References (45)

Fast Ionic Transport Along Twin Walls in Ferroelastic Minerals book January 2000
Classification of Topological Defects and Their Relevance to Cosmology and Elsewhere book January 2000
A unified field theory of mesons and baryons journal March 1962
Proprietes magnetiques et structures du manganite d'yttrium journal November 1963
Structure magnetique de MnYO3 journal June 1963
The Entropy of Water and the Third Law of Thermodynamics. The Heat Capacity of Ice from 15 to 273°K. journal July 1936
The Structure and Entropy of Ice and of Other Crystals with Some Randomness of Atomic Arrangement journal December 1935
Zero-point entropy in ‘spin ice’ journal May 1999
A high-mobility electron gas at the LaAlO3/SrTiO3 heterointerface journal January 2004
Spontaneous skyrmion ground states in magnetic metals journal August 2006
Magnetic monopoles in spin ice journal January 2008
Observation of polar vortices in oxide superlattices journal January 2016
Local dynamics of topological magnetic defects in the itinerant helimagnet FeGe journal August 2016
The origin of ferroelectricity in magnetoelectric YMnO3 journal February 2004
Conduction at domain walls in oxide multiferroics journal January 2009
Enhancement of ferroelectricity at metal–oxide interfaces journal April 2009
Chemically driven carbon-nanotube-guided thermopower waves journal March 2010
Anisotropic conductance at improper ferroelectric domain walls journal February 2012
Landau theory of topological defects in multiferroic hexagonal manganites journal October 2013
Skyrmions on the track journal March 2013
Classification of topologically stable defects in ordered media journal January 1977
A Theory of Water and Ionic Solution, with Particular Reference to Hydrogen and Hydroxyl Ions journal August 1933
Geometrical frustration journal February 2006
Manipulation of ferroelectric vortex domains in hexagonal manganites journal September 2011
The topology of non-uniform media in condensed matter physics journal June 1982
X-Ray investigations of the crystal structure and phase transitions of YMnO 3 journal January 1974
Domain boundary engineering – recent progress and many open questions journal January 2013
Two-level systems in a spin-glass model. I. General formalism and two-dimensional model journal December 1977
Chiral skyrmions in thin magnetic films: new objects for magnetic storage technologies? journal September 2011
Topology of cosmic domains and strings journal August 1976
Sheet superconductivity in twin walls: experimental evidence of journal June 1998
Introduction. Cosmology meets condensed matter
  • Kibble, T. W. B.; Pickett, G. R.
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Vol. 366, Issue 1877 https://doi.org/10.1098/rsta.2008.0098
journal June 2008
Antiferromagnetism. The Triangular Ising Net journal July 1950
Development of the high-temperature phase of hexagonal manganites journal April 2004
Ferroelectric transition in Y Mn O 3 from first principles journal September 2005
Monopole-based formalism for the diagonal magnetoelectric response journal September 2013
Metallic Phase with Long-Range Orientational Order and No Translational Symmetry journal November 1984
Determination of the Magnetic Symmetry of Hexagonal Manganites by Second Harmonic Generation journal June 2000
Scaling Behavior and Beyond Equilibrium in the Hexagonal Manganites journal December 2012
The topological theory of defects in ordered media journal July 1979
On the crystal structure of the manganese(III) trioxides of the heavy lanthanides and yttrium journal October 1963
Spin Ice State in Frustrated Magnetic Pyrochlore Materials journal November 2001
Quantum Spin Hall Insulator State in HgTe Quantum Wells journal November 2007
Theory of the frustration effect in spin glasses: I book November 1986
Groups of Homotopy Spheres: I journal May 1963

Cited By (1)

Goldstone-like phonon modes in a (111)-strained perovskite text January 2017

Similar Records

Topological defects and topological materials
Journal Article · Tue Jul 12 20:00:00 EDT 2016 · Integrated Ferroelectrics · OSTI ID:1498032

Classification of fragile topology enabled by matrix homotopy
Journal Article · Tue Sep 09 20:00:00 EDT 2025 · Physical Review Research · OSTI ID:2588888

Theory of topological defects and textures in two-dimensional quantum orders with spontaneous symmetry breaking
Journal Article · Thu May 23 20:00:00 EDT 2024 · Physical Review. B · OSTI ID:2477250