Writing and erasing topological defects in charge density wave materials with femtosecond laser pulses

The ultrafast dynamics of charge density wave materials pumped by a series of femtosecond laser pulses has been investigated by numerically solving the time-dependent Ginzburg–Landau equation in (1+1) dimensions, where the topological defects can be written and erased repeatedly. The effects of laser fluence, light absorption length, relaxation time, phonon frequency, and coherence length on the number and locations of topological defects have also been studied extensively. The results here will not only be helpful to understand the rich dynamics of topological defects in optically excited charge density wave materials, but also have potential applications to develop optoelectronics devices by manipulating topological defects with femtosecond lasers.

[1]  P. Jarillo-Herrero,et al.  Evidence for topological defects in a photoinduced phase transition , 2018, Nature Physics.

[2]  N. Gedik,et al.  Ultrafast manipulation of mirror domain walls in a charge density wave , 2018, Science Advances.

[3]  H. Tian,et al.  Hidden CDW states and insulator-to-metal transition after a pulsed femtosecond laser excitation in layered chalcogenide 1T-TaS2−xSex , 2018, Science Advances.

[4]  R. Averitt,et al.  Towards properties on demand in quantum materials. , 2017, Nature materials.

[5]  S. Johnson,et al.  Ultrafast Formation of a Charge Density Wave State in 1T-TaS_{2}: Observation at Nanometer Scales Using Time-Resolved X-Ray Diffraction. , 2017, Physical review letters.

[6]  C. Ropers,et al.  Phase ordering of charge density waves traced by ultrafast low-energy electron diffraction , 2017, Nature Physics.

[7]  W. Schmidt,et al.  Optically excited structural transition in atomic wires on surfaces at the quantum limit , 2017, Nature.

[8]  S. Johnson,et al.  Watching the birth of a charge density wave order: diffraction study on nanometer-and picosecond-scales , 2017, 1703.07465.

[9]  V. Jacques,et al.  Laser-Induced Charge-Density-Wave Transient Depinning in Chromium. , 2016, Physical review letters.

[10]  O. M. Magnussen,et al.  Photoinduced Enhancement of the Charge Density Wave Amplitude. , 2015, Physical review letters.

[11]  M Sikorski,et al.  A time-dependent order parameter for ultrafast photoinduced phase transitions. , 2014, Nature materials.

[12]  Yong Wang,et al.  Dynamics of the order parameter in a photoexcited Peierls chain , 2014, 1404.3627.

[13]  H. R. Krishnamurthy,et al.  Nonequilibrium "melting" of a charge density wave insulator via an ultrafast laser pulse. , 2013, Physical review letters.

[14]  J. Demšar,et al.  Ultrafast dynamics of charge density waves in 4H(b)-TaSe2 probed by femtosecond electron diffraction. , 2012, Physical review letters.

[15]  D. Mihailovic,et al.  Incoherent topological defect recombination dynamics in TbTe3. , 2012, Physical review letters.

[16]  M M Murnane,et al.  Time-domain classification of charge-density-wave insulators , 2012, Nature Communications.

[17]  A. Cavalleri,et al.  Clocking the melting transition of charge and lattice order in 1T-TaS2 with ultrafast extreme-ultraviolet angle-resolved photoemission spectroscopy. , 2011, Physical review letters.

[18]  S. Johnson,et al.  Nonthermal melting of a charge density wave in TiSe2. , 2011, Physical review letters.

[19]  Z. Shen,et al.  Ultrafast electron dynamics in the charge density wave material TbTe3 , 2011 .

[20]  Michael Bauer,et al.  Collapse of long-range charge order tracked by time-resolved photoemission at high momenta , 2011, Nature.

[21]  R. Miller,et al.  Snapshots of cooperative atomic motions in the optical suppression of charge density waves , 2010, Nature.

[22]  A. Cavalleri,et al.  Momentum-dependent snapshots of a melting charge density wave , 2010, 1010.5027.

[23]  J. Demšar,et al.  Disentanglement of the electronic and lattice parts of the order parameter in a 1D charge density wave system probed by femtosecond spectroscopy. , 2010, Physical review letters.

[24]  D. Mihailovic,et al.  Coherent dynamics of macroscopic electronic order through a symmetry breaking transition , 2010, 1006.1815.

[25]  F Hennies,et al.  Ultrafast melting of a charge-density wave in the Mott insulator 1T-TaS2. , 2010, Physical review letters.

[26]  J. Demšar,et al.  Dynamics of photoinduced charge-density-wave to metal phase transition in K0.3MoO3. , 2009, Physical review letters.

[27]  Z. Shen,et al.  Transient Electronic Structure and Melting of a Charge Density Wave in TbTe3 , 2008, Science.

[28]  Ahmed H. Zewail,et al.  4D Visualization of Transitional Structures in Phase Transformations by Electron Diffraction , 2007, Science.

[29]  W. Zurek.  Cosmological experiments in condensed matter systems , 1996, cond-mat/9607135.

[30]  T. Kibble,et al.  Some Implications of a Cosmological Phase Transition , 1980 .