Spin Waves in Ferromagnetics I. Quantum‐Theory

Szczeniowski, S.; Morkowski, J.; Szaniecki, J.

doi:10.1002/pssb.19630030402

Cited by 11 publications

(16 citation statements)

References 136 publications

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“…[36,110] The dynamics of this magnetic ground state can be understood in terms of spin waves. This induces a Mott insulating state also known as Mott-Heisenberg insulating phase.…”

Section: Magnons In Antiferromagnetsmentioning

confidence: 99%

“…PSMO thin films retain bulk-like properties when deposited on LSAT (110) and (111) single crystal substrates. These properties make it imperative to evaluate the low energy dynamics of the anisotropic CO state of PSMO and compare such properties with those of CE-type CO systems.…”

Section: Low Energy Excitations Inmentioning

confidence: 99%

“…Here, two specific points were made: i) though both the (110) and (111) films possess bulk-like CO properties, only (110) film exhibits the CDW-like mode, and ii) the (110) oriented films have two in-plane axes from different crystallographic families, i.e., (100) and (110). Here, two specific points were made: i) though both the (110) and (111) films possess bulk-like CO properties, only (110) film exhibits the CDW-like mode, and ii) the (110) oriented films have two in-plane axes from different crystallographic families, i.e., (100) and (110).…”

Section: Wwwadvopticalmatdementioning

confidence: 99%

“…Landau theory predicted that the insulating state is a manifestation of SDW formation where the CO is a secondary effect and, also identified to be directly proportional to the degree of orthorhombicity and ceases to exist in tetragonal/ cubic symmetry. Here, the THz electric field (E THz ) is applied along different crystal axis, i.e., for (100) pc sample, the E THz is // 〈001〉 axes, for (110) o sample E THz //〈1−10〉 axes, and for (111) pc sample E THz //〈10−1〉 axes. Figure 27 shows the THz optical conductivity of NdNiO 3 (NNO) thin film grown on the different orientations of LaAlO 3 substrate.…”

Section: Probing the Cdw Phason Mode In The Insulating Phase Of Rniomentioning

confidence: 99%

“…[78] Such unusual CDW mode was detected using THz-TDS in NdNiO 3 and described below in detail the selective CDW formation along the dissimilar crystal orientations of NdNiO 3 thin films. These studies were performed on (100), (110), and (111) films with two thicknesses of 35 and 240 nm. Here, the THz electric field (E THz ) is applied along different crystal axis, i.e., for (100) pc sample, the E THz is // 〈001〉 axes, for (110) o sample E THz //〈1−10〉 axes, and for (111) pc sample E THz //〈10−1〉 axes.…”

Section: Probing the Cdw Phason Mode In The Insulating Phase Of Rniomentioning

confidence: 99%

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Terahertz Electrodynamics in Transition Metal Oxides

Prajapati

Dagar

et al. 2019

Advanced Optical Materials

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The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/adom.201900958. 2−y 2 , d z 2 ) levels. [35] The splitting of the d-orbital was successfully explained by the crystal field theory. The ground state properties of these materials are mainly governed by the two interactions; i) the electron correlations (U) and, ii) SOC (λ) in the crystal field split narrow bands. [36] Among d electron systems, electrons in 3d TMOs experiences large electron correlations due to localized nature of 3d orbitals. The idea of electron-electron interaction was given by Sir N. F. Mott in 1949. It originated from the fact that the NiO was expected to be a metal according to the band theory, while the experiments showed insulating behavior. [37][38][39][40][41] This disagreement of experiments with the theory was explained by Hubbard who attributed the insulating state to the splitting

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“…[36,110] The dynamics of this magnetic ground state can be understood in terms of spin waves. This induces a Mott insulating state also known as Mott-Heisenberg insulating phase.…”

Section: Magnons In Antiferromagnetsmentioning

confidence: 99%

Section: Low Energy Excitations Inmentioning

confidence: 99%

Section: Wwwadvopticalmatdementioning

confidence: 99%

Section: Probing the Cdw Phason Mode In The Insulating Phase Of Rniomentioning

confidence: 99%

Section: Probing the Cdw Phason Mode In The Insulating Phase Of Rniomentioning

confidence: 99%

See 3 more Smart Citations

Terahertz Electrodynamics in Transition Metal Oxides

Prajapati

Dagar

et al. 2019

Advanced Optical Materials

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Spin Wave Theory for Anisotropic Cubic Ferromagnetics

Szaniecki

1963

Physica Status Solidi (b)

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An anisotropic cubic ferromagnetic is investigated using the theory proposed by the present author in earlier papers. The cases of pseudodipolar coupling and of spin quantum number S = 1/2 are considered. The free energy of a ferromagnetic is derived in the form of an infinite convergent series of connected ladder diagrams. The accuracy of this method is restricted to terms proportional to the power 3/2 of the quotient of the absolute and Curie temperatures and to the square of the pseudodipolar coupling constant. Kinematic interaction is shown to be negligible to the accuracy adopted.

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Spin Waves

Keffer¹

1966

Ferromagnetism / Ferromagnetismus

149

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Spin Waves in Ferromagnetics I. Quantum‐Theory

Cited by 11 publications

References 136 publications

Terahertz Electrodynamics in Transition Metal Oxides

Terahertz Electrodynamics in Transition Metal Oxides

Spin Wave Theory for Anisotropic Cubic Ferromagnetics

Spin Waves

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