Exchange-Striction Driven Ultrafast Nonthermal Lattice Dynamics in NiO

Windsor, Yoav William; Zahn, Daniela; Kamrla, Robin; Feldl, Johannes; Seiler, H.; Chiang, Cheng‐Tien; Ramsteiner, M.; Widdra, W.; Ernstorfer, Ralph; Rettig, Laurenz

doi:10.1103/physrevlett.126.147202

Cited by 16 publications

(15 citation statements)

References 73 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The reduction of the MOBF signal is attributed to a reduction of the antiferromagnetic order in NiO. This conclusion is based on a recent time-resolved diffraction study which revealed a clear correlation between the reduction of the rhombohedral distortion of NiO and the change in the AFM order of the system [39]. Moreover, the transient MOBF traces reveal a coherent oscillation with a frequency of 130 GHz that is superimposed onto the incoherent MOBF signal [8][9][10].…”

mentioning

confidence: 73%

“…To compare our simulations with the experimental findings, we translate the spin temperature into the experimental signal δM OBF . We assume a quasiinstantaneous correlation between the lattice distortion and the temperature-induced changes of the antiferromagnetic order parameter [39] and exploit the known temperature-dependence of the MOBF, which is given as…”

mentioning

confidence: 99%

See 1 more Smart Citation

Indirect optical manipulation of the antiferromagnetic order of insulating NiO by ultrafast interfacial energy transfer

Wust¹,

Seibel²,

Meer³

et al. 2022

Preprint

View full text Add to dashboard Cite

We report the ultrafast, (sub)picosecond reduction of the antiferromagnetic order of the insulating NiO thin film in a Pt/NiO bilayer. This reduction of the antiferromagnetic order is not present in pure NiO thin films after a strong optical excitation. This ultrafast phenomenon is attributed to an ultrafast and highly efficient energy transfer from the optically excited electron system of the Pt layer into the NiO spin system. We propose that this energy transfer is mediated by a stochastic exchange scattering of hot Pt electrons at the Pt/NiO interface.

show abstract

mentioning

confidence: 73%

mentioning

confidence: 99%

Indirect optical manipulation of the antiferromagnetic order of insulating NiO by ultrafast interfacial energy transfer

Wust¹,

Seibel²,

Meer³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…This was observed directly in silicon by Harb et al (2008). Spin-lattice coupling has also recently been interrogated from the lattice perspective using UED (Tauchert et al, 2022;Windsor et al, 2021).…”

Section: Examples From Literaturementioning

confidence: 91%

Ultrafast Electron Diffraction: Visualizing Dynamic States of Matter

Filippetto,

Musumeci,

et al. 2022

Preprint

View full text Add to dashboard Cite

Since the discovery of electron-wave duality, electron scattering instrumentation has developed into a powerful array of techniques for revealing the atomic structure of matter. Beyond detecting local lattice variations in equilibrium structures with the highest possible spatial resolution, recent research efforts have been directed towards the long sought-after dream of visualizing the dynamic evolution of matter in real-time. The atomic behavior at ultrafast timescales carries critical information on phase transition and chemical reaction dynamics, the coupling of electronic and nuclear degrees of freedom in materials and molecules, the correlation between structure, function and previously hidden metastable or nonequilibrium states of matter. Ultrafast electron pulses play an essential role in this scientific endeavor, and their generation has been facilitated by rapid technical advances in both ultrafast laser and particle accelerator technologies. This review presents a summary of the remarkable developments in this field over the last few decades. The physics and technology of ultrafast electron beams is presented with an emphasis on the figures of merit most relevant for ultrafast electron diffraction (UED) experiments. We discuss recent developments in the generation, manipulation and characterization of ultrashort electron beams aimed at improving the combined spatio-temporal resolution of these measurements. The fundamentals of electron scattering from atomic matter and the theoretical frameworks for retrieving dynamic structural information from solid-state and gas-phase samples is described. Essential experimental techniques and several landmark works that have applied these approaches are also highlighted to demonstrate the widening applicability of these methods. Ultrafast electron probes with ever improving capabilities, combined with other complementary photonbased or spectroscopic approaches, hold tremendous potential for revolutionizing our ability to observe and understand energy and matter at atomic scales.

show abstract

“…3 the optical absorption is of at least similar strength, we can extrapolate the measured lattice temperature in ref. 3 to ~85 K given our pump fluence. We note that in ref.…”

Section: Temporal Evolution Of Afm Order Visualized At the Nickel L2-...mentioning

confidence: 99%

Ultrafast manipulation of the NiO antiferromagnetic order via sub-gap optical excitation

et al. 2022

View full text Add to dashboard Cite

show abstract

Exchange-Striction Driven Ultrafast Nonthermal Lattice Dynamics in NiO

Cited by 16 publications

References 73 publications

Indirect optical manipulation of the antiferromagnetic order of insulating NiO by ultrafast interfacial energy transfer

Indirect optical manipulation of the antiferromagnetic order of insulating NiO by ultrafast interfacial energy transfer

Ultrafast Electron Diffraction: Visualizing Dynamic States of Matter

Ultrafast manipulation of the NiO antiferromagnetic order via sub-gap optical excitation

Contact Info

Product

Resources

About