Transient photoinduced 'hidden' phase in a manganite.

@article{Ichikawa2011TransientP,
  title={Transient photoinduced 'hidden' phase in a manganite.},
  author={Hirohiko Ichikawa and Shunsuke Nozawa and Tokushi Sato and Ayana Tomita and Kouhei Ichiyanagi and Matthieu Chollet and Laurent Gu{\'e}rin and Nicky Dean and Andrea Cavalleri and Shin-ichi Adachi and Taka-hisa Arima and Hiroshi Sawa and Yasushi Ogimoto and Masao Nakamura and Ryo Tamaki and Kenjiro Miyano and Shin-ya Koshihara},
  journal={Nature materials},
  year={2011},
  volume={10 2},
  pages={
          101-5
        }
}
Photoinduced phase transitions are of special interest in condensed matter physics because they can be used to change complex macroscopic material properties on the ultrafast timescale. Cooperative interactions between microscopic degrees of freedom greatly enhance the number and nature of accessible states, making it possible to switch electronic, magnetic or structural properties in new ways. Photons with high energies, of the order of electron volts, in particular are able to access… 
View on PubMed
qcmd.mpsd.mpg.de
156 Citations
Highly Influential Citations
2
Background Citations
10
Methods Citations
3

Figures from this paper

156 Citations

Citation Type

Citation Type

The nature of photoinduced phase transition and metastable states in vanadium dioxide
TLDR
This work uncovers two distinct regimes of the dynamical phase change: a nearly instantaneous crossover into an intermediate state and its decay led by lattice instabilities over 10 ps timescales.
Ultrafast disordering of vanadium dimers in photoexcited VO2
TLDR
It is shown that atomic disordering in photoexcited vanadium dioxide (VO2) is central to the transition mechanism and that, after photoexcitation, the system explores a large volume of phase space on a time scale comparable to that of a single phonon oscillation.
A time-dependent order parameter for ultrafast photoinduced phase transitions.
TLDR
Time-resolved X-ray diffraction is applied to directly measure the changes in long-range order during ultrafast melting of the charge and orbitally ordered phase in a perovskite manganite to find the dynamics of the phase transformation can be well described using a single time-dependent 'order parameter' that depends exclusively on the electronic excitation.
Ultrafast structural and electronic dynamics of the metallic phase in a layered manganite
TLDR
Femtosecond transmission electron microscopy on a bi-layered manganite to study its response to ultrafast photoexcitation shows that a photoinduced temperature jump launches a pressure wave that provokes coherent oscillations of the lattice parameters, detected via ultrafast electron diffraction.
Theory of photoinduced ultrafast switching to a spin-orbital ordered hidden phase
TLDR
This study theoretically confirms the crucial role played by orbital degrees of freedom in the light-induced dynamics of strongly correlated materials and it shows that the switching to hidden states can be controlled already on the fs timescale of the electron dynamics.
Room temperature hidden state in a manganite observed by time-resolved X-ray diffraction
Realizing active quantum control of materials near room temperature is one of the ultimate aims for their practical applications. Recent technological breakthroughs demonstrated that optical…
Laser-Induced Cooperative Transition in Molecular Electronic Crystal.
TLDR
Comprehensive noise spectroscopy, in situ high-pressure measurements, electron spin resonance (ESR), theoretical model, and scanning tunneling microscopy/spectroscopy (STM/STS) studies provide further evidence that such an transition is cooperative, requiring a dedicate charge-spin-lattice decoupling to activate and subsequently stabilize nonequilibrium phase.
Direct observation of collective modes coupled to molecular orbital–driven charge transfer
TLDR
The ultrafast photoresponse of the molecular crystal Me4P[Pt(dmit)2]2 is reported, which exhibits a photoinduced charge transfer similar to transitions between thermally accessible states, and how femtosecond electron diffraction can be applied to directly observe the associated molecular motions.
Optical creation of a supercrystal with three-dimensional nanoscale periodicity
TLDR
This work demonstrates opportunities for light-activated pathways to thermally inaccessible and emergent metastable states and describes this emergent phase as a photo-induced charge-stabilized supercrystal formed from a two-phase equilibrium state.
Cooperative photoinduced metastable phase control in strained manganite films.
TLDR
Strain-engineered tuning of La2/3Ca1/3MnO3 into an emergent charge-ordered insulating phase with extreme photo-susceptibility is demonstrated, revealing that strain engineering can tune emergent functionality towards proximal macroscopic states to enable dynamic ultrafast optical phase switching and control.
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 34 REFERENCES
Control of the electronic phase of a manganite by mode-selective vibrational excitation
TLDR
This work reports the ultrafast switching of the electronic phase of a magnetoresistive manganite via direct excitation of a phonon mode at 71 meV (17 THz), and reports the vibrationally driven bandgap collapse observed here, which is uniquely attributed to a large-amplitude Mn–O distortion.
A Tool for Generating a Hidden State of Matter
For many years, photoinduced phase transition (PIPT) phenomena have been investigated to generate a hidden state of matter by means of optically excited states and achieve a ultrafast optical…
A Key for Photoinduced Insulator-Metal Transitions in Manganites : Lattice Constant Matching between Charge/Orbital Ordered Insulator and Ferromagnetic Metal(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
We report comparative studies of photoinduced spin and charge dynamics in the three kinds of the charge/orbital ordered (CO/OO) manganites. By the irradiation of a femtosecond laser pulse, ultrafast…
Coherent orbital waves in the photo-induced insulator-metal dynamics of a magnetoresistive manganite.
TLDR
At room temperature, it is found that the time-dependent pathway towards the metallic phase is accompanied by coherent 31 THz oscillations of the optical reflectivity, significantly faster than all lattice vibrations, suggestive of coherent orbital waves, crystal-field excitations triggered here by impulsive stimulated Raman scattering.
Ultrafast structural phase transition driven by photoinduced melting of charge and orbital order.
TLDR
Using femtosecond x-ray diffraction to probe directly the structural dynamics of a charge ordered and orbitally ordered thin film of La0.42Ca0.58MnO3 initiated by an ultrafast optical pulse results in a complete phase transition within 1 ps via the disappearance of a superlattice reflection.
Photo-Induced Phase Transition in an Electron-Lattice Correlated System : Future Role of a Time-Resolved X-ray Measurement for Materials Science( Photo-Induced Phase Transitions and their Dynamics)
The search for materials that show a phase transition triggered by weak external stimulation of light is an important and attractive target for photonic and materials science. We review experimental…
Laser-Induced Ferroelectric Structural Order in an Organic Charge-Transfer Crystal
TLDR
Direct observation by x-ray diffraction of a photoinduced paraelectric-to-ferroelectric structural phase transition using monochromatic 100-picosecond synchrotron pulses in tetrathiafulvalene-p-chloranil indicates structural changes at the molecular level.
Ultrafast photoinduced magnetic moment in a charge-orbital-ordered antiferromagnetic Nd 0.5 Sr 0.5 MnO 3 thin film
The effect of photoexcitation in the charge sector on the magnetization has been studied with subpicosecond optical pump-and-probe measurements in an antiferromagnetic manganite. Magneto-optic Kerr…
Photo-induced phase transition in charge ordered perovskite manganites
Successive dynamical steps of photoinduced switching of a molecular Fe(III) spin-crossover material by time-resolved x-ray diffraction.
TLDR
The time-resolved x-ray diffraction and optical results show that the dynamics span from subpicosecond local photoswitching followed by volume expansion (nanosecond) and thermal switching (microsecond).
...
1
2
3
4
...