Published May 7, 2015 | Version v1
Journal article Metadata-only

Soft mode characteristics of up-up-down-down spin chains: The role of exchange interactions on lattice dynamics

Creators

  • 1. Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093 (China)
  • 2. School of Physics and Electronic Engineering, Jiangsu Second Normal University, Nanjing 210013 (China)
  • 3. College of Electronic Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003 (China)

Description

In this work, the dynamics of a diatomic chain is investigated with ↑↑↓↓ spin order in which the dispersion relation characterizes the effect of magnetic interactions on the lattice dynamics. The optical or acoustic mode softening in the center or boundary of the Brillouin zone can be observed, indicating the transitions of ferroelectric state, antiferromagnetic state, or ferroelastic state. The coexistence of the multiferroic orders related to the ↑↑↓↓ spin order represents a type of intrinsic multiferroic with strong ferroelectric order and different microscopic mechanisms

Additional details

Identifiers

DOI
10.1063/1.4918767;

Publishing Information

Journal Title
Journal of Applied Physics
Journal Volume
117
Journal Issue
17
Journal Page Range
vp.
ISSN
0021-8979
CODEN
JAPIAU

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
46115980
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ANTIFERROMAGNETISM; BRILLOUIN ZONES; DISPERSION RELATIONS; EXCHANGE INTERACTIONS; FERROELECTRIC MATERIALS; PHASE TRANSFORMATIONS; SPIN
Descriptors DEC
ANGULAR MOMENTUM; DIELECTRIC MATERIALS; INTERACTIONS; MAGNETISM; MATERIALS; PARTICLE PROPERTIES; ZONES

Optional Information

Notes
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