Evidence for impact ionization in vanadium dioxide

Holleman, Joshua; Bishop, Michael M.; Garcia, Carlos; Vellore Winfred, J. S.  R.; Lee, Shinbuhm; Lee, Ho Nyung; Beekman, Christianne; Manousakis, Efstratios; McGill, Stephen A.

doi:10.1103/PhysRevB.94.155129

Title: Evidence for impact ionization in vanadium dioxide

Abstract

Pump-probe optical spectroscopy was used to investigate charge carrier multiplication via impact ionization in the M₁ insulating phase of VO₂. By comparing the transient reflectivities of the film when pumped at less than and then more than twice the band-gap energy, we observed an enhancement of the ultrafast response with the higher energy pump color while the film was still transiently in the insulating phase. We additionally identified multiple timescales within the charge dynamics and analyzed how these changed when the pump and probe wavelengths were varied. This experiment provided evidence that impact ionization acts efficiently as a carrier multiplication process in this prototypical strongly-correlated insulator.

Authors:

Holleman, Joshua ^[1]; Bishop, Michael M. ^[2]; Garcia, Carlos ^[1]; Vellore Winfred, J. S. R. ^[2]; Lee, Shinbuhm ^[3]; Lee, Ho Nyung ^[3]; Beekman, Christianne ^[1]; Manousakis, Efstratios ^[1]; McGill, Stephen A. ^[2]

Florida State Univ., Tallahassee, FL (United States). National High Magnetic Field Lab. (MagLab); Florida State Univ., Tallahassee, FL (United States). Dept. of Physics
Florida State Univ., Tallahassee, FL (United States). National High Magnetic Field Lab. (MagLab)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science & Technology Division

Publication Date:: Mon Oct 17 00:00:00 EDT 2016

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1339356

Alternate Identifier(s):: OSTI ID: 1329101

Grant/Contract Number:: AC05-00OR22725; DMR-1229217; DMR-1157490

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review B

Additional Journal Information:: Journal Volume: 94; Journal Issue: 15; Journal ID: ISSN 2469-9950

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

Citation Formats


                    Holleman, Joshua, Bishop, Michael M., Garcia, Carlos, Vellore Winfred, J. S.  R., Lee, Shinbuhm, Lee, Ho Nyung, Beekman, Christianne, Manousakis, Efstratios, and McGill, Stephen A. Evidence for impact ionization in vanadium dioxide.  United States: N. p., 2016. 
Web.  doi:10.1103/PhysRevB.94.155129.

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                    Holleman, Joshua, Bishop, Michael M., Garcia, Carlos, Vellore Winfred, J. S.  R., Lee, Shinbuhm, Lee, Ho Nyung, Beekman, Christianne, Manousakis, Efstratios, & McGill, Stephen A. Evidence for impact ionization in vanadium dioxide.  United States.  https://doi.org/10.1103/PhysRevB.94.155129

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                    Holleman, Joshua, Bishop, Michael M., Garcia, Carlos, Vellore Winfred, J. S.  R., Lee, Shinbuhm, Lee, Ho Nyung, Beekman, Christianne, Manousakis, Efstratios, and McGill, Stephen A. Mon .  
"Evidence for impact ionization in vanadium dioxide".  United States.  https://doi.org/10.1103/PhysRevB.94.155129.  https://www.osti.gov/servlets/purl/1339356.

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@article{osti_1339356,

  title        = {Evidence for impact ionization in vanadium dioxide},

  author       = {Holleman, Joshua and Bishop, Michael M. and Garcia, Carlos and Vellore Winfred, J. S.  R. and Lee, Shinbuhm and Lee, Ho Nyung and Beekman, Christianne and Manousakis, Efstratios and McGill, Stephen A.},

  abstractNote = {Pump-probe optical spectroscopy was used to investigate charge carrier multiplication via impact ionization in the M1 insulating phase of VO2. By comparing the transient reflectivities of the film when pumped at less than and then more than twice the band-gap energy, we observed an enhancement of the ultrafast response with the higher energy pump color while the film was still transiently in the insulating phase. We additionally identified multiple timescales within the charge dynamics and analyzed how these changed when the pump and probe wavelengths were varied. This experiment provided evidence that impact ionization acts efficiently as a carrier multiplication process in this prototypical strongly-correlated insulator.},

  doi          = {10.1103/PhysRevB.94.155129},

  journal      = {Physical Review B},

  number       = 15,

  volume       = 94,

  place        = {United States},

  year         = {Mon Oct 17 00:00:00 EDT 2016},

  month        = {Mon Oct 17 00:00:00 EDT 2016}

}

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Works referencing / citing this record:

Many-body recombination in photoexcited insulating cuprates
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Title: Evidence for impact ionization in vanadium dioxide

Abstract

Citation Formats

High Efficiency Carrier Multiplication in PbSe Nanocrystals: Implications for Solar Energy Conversion journal, May 2004

Ultrafast optical and far-infrared quasiparticle dynamics in correlated electron materials journal, December 2002

Growth control of the oxidation state in vanadium oxide thin films journal, December 2014

Structural and electronic recovery pathways of a photoexcited ultrathin VO 2 film journal, October 2013

Monoclinic and Correlated Metal Phase in VO 2 as Evidence of the Mott Transition: Coherent Phonon Analysis journal, December 2006

A photoinduced metal-like phase of monoclinic VO 2 revealed by ultrafast electron diffraction journal, October 2014

Oxide Interfaces--An Opportunity for Electronics journal, March 2010

Coherent Structural Dynamics and Electronic Correlations during an Ultrafast Insulator-to-Metal Phase Transition in VO 2 journal, September 2007

Photovoltaic effect for narrow-gap Mott insulators journal, September 2010

Ab Initio Study of Hot Carriers in the First Picosecond after Sunlight Absorption in Silicon journal, June 2014

Epitaxial stabilization and phase instability of VO2 polymorphs journal, January 2016

Emergent phenomena at oxide interfaces journal, January 2012

An Emergent Change of Phase for Electronics journal, March 2010

Characterization of structural dynamics of VO 2 thin film on c -Al 2 O 3 using in-air time-resolved x-ray diffraction journal, October 2010

Enhanced Photosusceptibility near T c for the Light-Induced Insulator-to-Metal Phase Transition in Vanadium Dioxide journal, November 2007

Optical switching in VO2 films by below-gap excitation journal, May 2008

Picosecond soft x-ray absorption measurement of the photoinduced insulator-to-metal transition in VO 2 journal, April 2004

Unusually long free carrier lifetime and metal-insulator band offset in vanadium dioxide journal, February 2012

Dynamical Singlets and Correlation-Assisted Peierls Transition in V O 2 journal, January 2005

Ultrafast insulator-metal phase transition in VO 2 studied by multiterahertz spectroscopy journal, May 2011

Optical Properties of V O 2 between 0.25 and 5 eV journal, August 1968

Photo-induced lattice softening of excited-state VO 2 journal, August 2011

Phase diagram of the ultrafast photoinduced insulator-metal transition in vanadium dioxide journal, April 2012

Optoelectronic excitations and photovoltaic effect in strongly correlated materials journal, October 2014

Tracking the evolution of electronic and structural properties of VO 2 during the ultrafast photoinduced insulator-metal transition journal, March 2013

Direct Observation of Decoupled Structural and Electronic Transitions and an Ambient Pressure Monocliniclike Metallic Phase of VO 2 journal, November 2014

Instantaneous Band Gap Collapse in Photoexcited Monoclinic VO 2 due to Photocarrier Doping journal, November 2014

Ultrafast Phase Transition via Catastrophic Phonon Collapse Driven by Plasmonic Hot-Electron Injection journal, January 2014

Evidence for a structurally-driven insulator-to-metal transition in VO 2 : A view from the ultrafast timescale journal, October 2004

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Many-body recombination in photoexcited insulating cuprates journal, December 2019

High Efficiency Carrier Multiplication in PbSe Nanocrystals: Implications for Solar Energy Conversion
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Ultrafast optical and far-infrared quasiparticle dynamics in correlated electron materials
journal, December 2002

Growth control of the oxidation state in vanadium oxide thin films
journal, December 2014

Structural and electronic recovery pathways of a photoexcited ultrathin VO $_{2}$ film
journal, October 2013

Monoclinic and Correlated Metal Phase in ${VO}_{2}$ as Evidence of the Mott Transition: Coherent Phonon Analysis
journal, December 2006

A photoinduced metal-like phase of monoclinic VO ₂ revealed by ultrafast electron diffraction
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Oxide Interfaces--An Opportunity for Electronics
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journal, September 2010

Ab Initio Study of Hot Carriers in the First Picosecond after Sunlight Absorption in Silicon
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Epitaxial stabilization and phase instability of VO2 polymorphs
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Enhanced Photosusceptibility near $T_{c}$ for the Light-Induced Insulator-to-Metal Phase Transition in Vanadium Dioxide
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Unusually long free carrier lifetime and metal-insulator band offset in vanadium dioxide
journal, February 2012

Dynamical Singlets and Correlation-Assisted Peierls Transition in ${V O}_{2}$
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Ultrafast insulator-metal phase transition in VO $_{2}$ studied by multiterahertz spectroscopy
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journal, August 1968

Photo-induced lattice softening of excited-state VO ₂
journal, August 2011

Phase diagram of the ultrafast photoinduced insulator-metal transition in vanadium dioxide
journal, April 2012

Optoelectronic excitations and photovoltaic effect in strongly correlated materials
journal, October 2014

Tracking the evolution of electronic and structural properties of VO $_{2}$ during the ultrafast photoinduced insulator-metal transition
journal, March 2013

Direct Observation of Decoupled Structural and Electronic Transitions and an Ambient Pressure Monocliniclike Metallic Phase of ${VO}_{2}$
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Instantaneous Band Gap Collapse in Photoexcited Monoclinic ${VO}_{2}$ due to Photocarrier Doping
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Ultrafast Phase Transition via Catastrophic Phonon Collapse Driven by Plasmonic Hot-Electron Injection
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Evidence for a structurally-driven insulator-to-metal transition in ${VO}_{2}$ : A view from the ultrafast timescale
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Femtosecond Structural Dynamics in ${VO}_{2}$ during an Ultrafast Solid-Solid Phase Transition
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