Electronic Structure, Phonons and Dielectric Anomaly in Ferromagnetic Insulating Double Perovskite La2NiMnO6

Hena Das; Umesh V. Waghmare; T. Saha-Dasgupta; D. D. Sarma

doi:10.1103/PhysRevLett.100.186402

paper

Electronic Structure, Phonons and Dielectric Anomaly in Ferromagnetic Insulating Double Perovskite La2NiMnO6

arXiv:0805.1112 · doi:10.1103/PhysRevLett.100.186402

Abstract

Using first-principles density functional calculations, we study the electronic and magnetic properties of ferromagnetic insulating double-perovskite compound La2NiMnO6, which has been reported to exhibit interesting magnetic field sensitive dielectric anomaly as a function of temperature. Our study reveals existence of very soft infra-red active phonons that couple strongly with spins at the Ni and Mn sites through modification of the super-exchange interaction. We suggest that these modes are the origin for observed dielectric anomaly in La2NiMnO6.

4 pages,3 figures

References in corpus (4)

Muffin Tin Orbitals of Arbitrary Order
Magnetic and electric phase control in epitaxial EuTiO $_{3}$ from first principles
Polar phonons and intrinsic dielectric response of the ferromagnetic insulating spinel CdCr $_{2}$ S $_{4}$ from first principles
First principles investigation of the electronic structure of La2MnNiO6: A room-temperature insulating ferromagnet

Cited by in corpus (37)

Near room-temperature colossal magnetodielectricity and multiglass properties in partially-disordered La2NiMnO6
Angular Momentum of Phonons and Einstein-de Haas Effect
Spin-phonon coupling effects in transition-metal perovskites:a DFT+ $U$ and hybrid-functional study
Theoretical prediction of multiferroicity in double perovskite Y $_{2}$ NiMnO $_{6}$
Griffiths phase-like behaviour and spin-phonon coupling in double perovskite Tb $_{2}$ NiMnO $_{6}$
Sol-gel synthesized double perovskite Gd $_{2}$ FeCrO $_{6}$ nanoparticles: Structural, magnetic and optical properties
Charge transfer driven emergent phenomena in oxide heterostructures
Spin-Phonon coupling in Y $_{2}$ NiMnO $_{6}$ double perovskite probed by Raman spectroscopy
Temperature dependent magnetic, dielectric and Raman studies of partially disordered La2NiMnO6
First-principles calculation of the electronic and optical properties of Gd $_{2}$ FeCrO $_{6}$ double perovskite: Effect of Hubbard U parameter
Evidence of Kinetic Energy Driven Antiferromagnetism in Double Perovskites : A First-principles Study
First-principles modeling of multferroic RMn $_{2}$ O $_{5}$
Large spin-phonon coupling and magnetically-induced phonon anisotropy in Sr $M$ O $_{3}$ perovskites ( $M$ =V,Cr,Mn,Fe,Co)
A-site driven ferroelectricity in strained ferromagnetic L2NiMnO6 thin films
Antisite Domains in Double Perovskite Ferromagnets: Impact on Magnetotransport and Half-metallicity
Origin of insulating ferromagnetism in iron oxychalcogenide Ce $_{2}$ O $_{2}$ FeSe $_{2}$
Magnetism in Sr $_{2}$ CrMoO $_{6}$ : A combined abinitio and model study
Colossal magnetoresistance in the insulating ferromagnetic double perovskites Tl $_{2}$ NiMnO $_{6}$ : A neutron diffraction study
Re-entrant superspin glass phase in La $_{0.82}$ Ca $_{0.18}$ MnO $_{3}$ ferromagnetic insulator
First-principles study on phase stability and physical properties of B-site ordered Nd $_{2}$ FeCrO $_{6}$ double perovskite
Al-dependent electronic and magnetic properties of YCrO $_{3}$ with magnetocaloric application: an ab-initio and Monte-Carlo approach
Role of spin mixing conductance in determining thermal spin pumping near the ferromagnetic phase transition in EuO_{1-x} and La2NiMnO6
Theory of magnetism in La $_{2}$ NiMnO $_{6}$
Electronic structure of Pr2MnNiO6 from x-ray photoemission, absorption and density functional theory
Phase driven magnetic and optoelectronic properties ofLa2CrNiO6: A DFT and Monte Carlo perspective
Effect of Strontium substitution on the structural and magnetic properties of La1.8Sr0.2MMnO6 (M = Ni, Co) layered manganites
Population Analysis with Wannier Orbitals
Understanding the Curious Magnetic State of Sr $_{3}$ OsO $_{6}$
Electronic origin of spin-phonon coupling effect in transition-metal perovskites
Understanding the ferromagnetic insulating state in Cr doped VO $_{2}$
Rare-earth tuned magnetism and magnetocaloric effects in double perovskites $R_{2}$ NiMnO $_{6}$
Effect of oxygen concentration on the structural and magnetic properties of LaRh1/2Mn1/2O3 thin films
Robust electronic and tunable magnetic states in Sm $_{2}$ NiMnO $_{6}$ ferromagnetic insulator
Interfacial reconstruction effects in insulating double perovskite Nd $_{2}$ NiMnO $_{6}$ /SrTiO $_{3}$ and Nd $_{2}$ NiMnO $_{6}$ /NdGaO $_{3}$ thin films
Non-collinear Magnetic Order in the Double Perovskites: Double Exchange on a Geometrically Frustrated Lattice
Existence of inter coupled structural, electronic and magnetic states in Sm $_{2}$ NiMnO $_{6}$ double perovskite
Inter-chain Interactions, Multi-magnon condensation and Strain effect in chain compound NaVOPO $_{4}$