- Spin-Phonon Couplings in Transition Metal Complexes... - NIST.
- (PDF) Evidence of spin-two phonon coupling and improved multiferroic.
- Spin phonon coupling in hexagonal multiferroic YMnO3.
- Spin-phonon coupling and improved multiferroic properties of.
- Spin-phonon coupling in frustrated magnet CdCr2O4.
- Emerging spin–phonon coupling through cross-talk of.
- Spin-phonon coupling in multiferroic Y2CoMnO6.
- Phononic integrated circuitry and spin–orbit interaction.
- Spin‐Phonon Coupling and Slow‐Magnetic Relaxation in Pristine.
- Spin-phonon coupling in antiferromagnetic nickel oxide (Journal Article.
- Spin-phonon coupling in antiferromagnetic nickel oxide.
- Electron-Phonon and Spin-Lattice Coupling in Atomically Thin Layers of.
- (PDF) Spin-phonon coupling in ZnCr_ {2} Se_ {4} - ResearchGate.
- Strong spin-phonon coupling unveiled by coherent phonon.
Spin-Phonon Couplings in Transition Metal Complexes... - NIST.
The detailed phonon dynamics study reveals the strong spin-phonon coupling as identified from the anomalous softening of the phonon modes and increase of phonon life time for most of the modes. On consideration of the role of lattice degrees of freedom on the hetero-tri-spin compound with three magnetic cations, the development of correlated. Spin-Phonon coupling Quantum magnets heat transport thermal conductivity Antiferromagnetic Low dimensional Experimental measurements of heat conduction in the low-dimensional antiferromagnetic compounds CuSb2O6 and BiCu2PO6 are presented for the range 0.5K≤T≤390K.
(PDF) Evidence of spin-two phonon coupling and improved multiferroic.
Nanoelectromechanical.
Spin phonon coupling in hexagonal multiferroic YMnO3.
While the investigations of phonon modes in the context of 5d materials is currently limited, it was recently found that the mixed 3d–5d half-metal double perovskite Ba 2 FeReO 6 hosts a dramatic spin-electron-phonon coupling as evidenced by a phonon shift of Δω=30 cm-1, (ref. 16) the largest ever reported prior to our present work on NaOsO 3.
Spin-phonon coupling and improved multiferroic properties of.
We introduce a hybrid tripartite quantum system for strong coupling between a semiconductor spin, a mechanical phonon, and a microwave photon. Consisting of a piezoelectric resonator with an integrated diamond strain concentrator, this system achieves microwave-acoustic and spin-acoustic coupling rates ~MHz or greater, allowing for simultaneous ultra-high cooperativities (both $\\sim 10^4. Iors of this phonon in ZnCr 2O 4 and CdCr 2O 4 will be ex-plained as a consequence of the spin-phonon coupling effects on their different magnetic order. Figure 3 a shows the temperature dependence of the fre-quency of the lowest energy IR active phonon. This phonon also shows anomalous softening below 100 K, the frequency shifts by 1.5 cm−1. Spin-phonon coupling in rare-earth based manganites with double perovskite structure plays a crucial role in the magnetoelectric properties of these ferromagnetic materials. Particularly, on Y 2 CoMnO 6 (YCMO), it is assumed that spin-phonon coupling is related to the induced ferroelectric polarization. This confers to YCMO a multiferroic.
Spin-phonon coupling in frustrated magnet CdCr2O4.
The reduction and later on the enhancement in intensity of E-9 mode indicate the structural distortion induced spin-phonon coupling. This spin-phonon coupling may predict that magnetic property of BiFe 1−x Zr x O 3 samples might increase for x = 0.03–0.07 and then decrease for x = 0.10–0.15 samples. G phonon mode of the lowest frequency changes abruptly not only its amplitude but also the oscillation phase as the spin order develops. In addition, the phonon mode shows a redshift entering the magnetically ordered state, which indicates a spin-phonon coupling in the system. Density functional theory calculations reveal that the A.
Emerging spin–phonon coupling through cross-talk of.
The coupling between electronic spins and lattice vibrations is fundamental for driving relaxation in magnetic materials. The debate over the nature of spin-phonon coupling dates back to the 1940s, but the role of spin-spin, spin-orbit, and hyperfine interactions has never been fully established. The absence of spin–phonon coupling is surprising in the light of classical systems such as orthochromites and orthomanganites 29,30, where spin–phonon coupling occurs at T N. This observation. Despite its pivotal role in transport processes, the effect of spin-phonon coupling on the phonon system, especially acoustic phonon properties, has so far been elusive. By means of inelastic neutron scattering and first-principles calculations, anomalous scattering spectral intensity from acoustic phonons was identified in the exemplary.
Spin-phonon coupling in multiferroic Y2CoMnO6.
Periodic DFT calculations give energies and symmetries of the phonons. Vibronic-coupling calculations have been performed to understand the behavior of the coupled peaks in the Raman spectra. Current work demonstrates that spin-phonon couplings may be probed by a combination of Raman, far-IR and INS spectroscopies.
Phononic integrated circuitry and spin–orbit interaction.
Inelastic neutron scattering measurements have been performed on YMnO3, aiming to study the interplay between spin and lattice degrees of freedom in this hexagonal multiferroic material. Our study provides evidence for a strong coupling between magnons and phonons, evidenced by the opening of a gap below T (N) in the dispersion of the. The U.S. Department of Energy's Office of Scientific and Technical Information.
Spin‐Phonon Coupling and Slow‐Magnetic Relaxation in Pristine.
The contributions of spin–phonon coupling (SPC) to spin and thermal transport properties are important in emerging two-dimensional (2D) magnetic semiconductors and are relevant to the data security and working stability of spin-based devices. By evaluating the dynamical stability of both ferromagnetic (FM) a. In these compounds, spin-phonon coupling (SPC) typically plays a crucial role in magnetic fluctuations, magnon dissipation, and ultimately establishing long-range ferromagnetic order. However, a systematic understanding of SPC in 2D magnets that combines theory and experiment is still lacking. In this work, monolayer chromium tribromide is.
Spin-phonon coupling in antiferromagnetic nickel oxide (Journal Article.
For example, magnetic perovskite oxides often undergo structural transitions accompanied by magnetic signatures whose minuteness suggests that the underlying spin-phonon couplings are largely irrelevant. We present an exception to this rule, showing that novel effects can occur as a consequence.
Spin-phonon coupling in antiferromagnetic nickel oxide.
From these observations, we can conclude that spin-phonon coupling is present only in R CrO 3 with magnetic R3+ ions. Fig. 5: (Color online) Effect of the temperature on B 1g (4) and A g (4) phonon linewidths in R CrO 3 ( R = Y, Lu, Gd, Eu and Sm). Solid lines are guides to the eye. In these compounds, spin-phonon coupling (SPC) typically plays a crucial role in magnetic fluctuations, magnon dissipation, and ultimately establishing long-range ferromagnetic order. However, a systematic understanding of SPC in 2D magnets that combines theory and experiment is. The peculiarities of the spin-phonon coupling are consistent with the trends given by density functional theory. The obtained results shed light on the nature of the spin-phonon coupling in antiferromagnetic insulators and can help in developing spintronic devices. The work at UC Riverside was supported as part of the Spins and Heat in.
Electron-Phonon and Spin-Lattice Coupling in Atomically Thin Layers of.
Evidence of spin-two phonon coupling and improved multiferroic behavior of Bi1-x Dy x FeO3 nanoparticles.
(PDF) Spin-phonon coupling in ZnCr_ {2} Se_ {4} - ResearchGate.
Hybrid spin-mechanical setups offer a versatile platform for quantum science and technology, but improving the spin-phonon as well as the spin-spin couplings of such systems remains a crucial challenge. Here, we propose and analyze an experimentally feasible and simple method for exponentially enhancing the spin-phonon and the phonon-mediated spin-spin interactions in a hybrid spin-mechanical.
Strong spin-phonon coupling unveiled by coherent phonon.
Here, we investigate how couplings between electron, spin, and lattice are manifested in the phonon spectra of few-septuple-layer thick MnBi2Te4. After categorizing phonon modes by their symmetries, we study the systematic changes in frequency, line width, and line shape of a spectrally isolated A1g mode. The electron-phonon coupling. Publisher's Accepted Manuscript: Spin-phonon coupling in antiferromagnetic nickel oxide Citation Details Title: Spin-phonon coupling in antiferromagnetic nickel oxide. Abstract. We report the results of ultraviolet Raman spectroscopy of NiO, which allowed us to determine the spin-phonon coupling coefficients in this important antiferromagnetic material. The use of the second-order phonon scattering and ultraviolet laser excitation (λ = 325 nm) was essential for overcoming the problem of the optical selection.
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