A dynamical stability limit for the charge density wave in K0.3MoO3
We study the response of the one-dimensional charge density wave in K0.3MoO3 to different types of excitation with femtosecond optical pulses. We compare the response to direct excitation of the lattice at mid-infrared frequencies with that to the injection of quasi-particles across the low-energy c...
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| creator | Mankowsky, Roman Liu, Biaolong Rajasekaran, Srivats Liu, Haiyun Mou, Daixiang Zhou, X J Merlin, Roberto st, Michael Cavalleri, Andrea |
| description | We study the response of the one-dimensional charge density wave in K0.3MoO3 to different types of excitation with femtosecond optical pulses. We compare the response to direct excitation of the lattice at mid-infrared frequencies with that to the injection of quasi-particles across the low-energy charge density wave gap and to charge transfer excitations in the near infrared. For all three cases, we observe a fluence threshold above which the amplitude-mode oscillation frequency is softened and the mode becomes increasingly damped. We show that all the data can be collapsed onto a universal curve in which the melting of the charge density wave occurs abruptly at a critical lattice excursion. These data highlight the existence of a universal stability limit for a charge density wave, reminiscent of the empirical Lindemann criterion for the stability of a crystal lattice. |
| doi_str_mv | 10.48550/arxiv.1702.05897 |
| format | Article |
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We compare the response to direct excitation of the lattice at mid-infrared frequencies with that to the injection of quasi-particles across the low-energy charge density wave gap and to charge transfer excitations in the near infrared. For all three cases, we observe a fluence threshold above which the amplitude-mode oscillation frequency is softened and the mode becomes increasingly damped. We show that all the data can be collapsed onto a universal curve in which the melting of the charge density wave occurs abruptly at a critical lattice excursion. These data highlight the existence of a universal stability limit for a charge density wave, reminiscent of the empirical Lindemann criterion for the stability of a crystal lattice.</description><identifier>EISSN: 2331-8422</identifier><identifier>DOI: 10.48550/arxiv.1702.05897</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Charge density waves ; Charge transfer ; Crystal lattices ; Dynamic stability ; Excitation ; Femtosecond pulses ; Fluence ; Optical pulses ; Physics - Strongly Correlated Electrons ; Stability criteria</subject><ispartof>arXiv.org, 2017-02</ispartof><rights>2017. This work is published under http://arxiv.org/licenses/nonexclusive-distrib/1.0/ (the “License”). 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We compare the response to direct excitation of the lattice at mid-infrared frequencies with that to the injection of quasi-particles across the low-energy charge density wave gap and to charge transfer excitations in the near infrared. For all three cases, we observe a fluence threshold above which the amplitude-mode oscillation frequency is softened and the mode becomes increasingly damped. We show that all the data can be collapsed onto a universal curve in which the melting of the charge density wave occurs abruptly at a critical lattice excursion. These data highlight the existence of a universal stability limit for a charge density wave, reminiscent of the empirical Lindemann criterion for the stability of a crystal lattice.</description><subject>Charge density waves</subject><subject>Charge transfer</subject><subject>Crystal lattices</subject><subject>Dynamic stability</subject><subject>Excitation</subject><subject>Femtosecond pulses</subject><subject>Fluence</subject><subject>Optical pulses</subject><subject>Physics - Strongly Correlated Electrons</subject><subject>Stability criteria</subject><issn>2331-8422</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GOX</sourceid><recordid>eNotj8tOwzAURC0kJKrSD2CFJdYJtm_8yLKKeFQUdQH76DpxqKs8ipMW8vekLasZaUajOYTccRYnRkr2iOHXH2OumYiZNKm-IjMBwCOTCHFDFn2_Y4wJpYWUMCPZkpZji40vsKb9gNbXfhhp7Rs_0KoLdNg6WmwxfDlaurY_hT94dNS39I3F8N5t4JZcV1j3bvGvc_Lx_PSZvUbrzcsqW64jlEJHTlUcsLQ6VWmRoAKGICdvHDeGQ2JZatBwa620qnDWgIG0gtKwykpAmJP7y-oZMN8H32AY8xNofgadGg-Xxj503wfXD_muO4R2upQLphMlQWgNf8jQVCc</recordid><startdate>20170220</startdate><enddate>20170220</enddate><creator>Mankowsky, Roman</creator><creator>Liu, Biaolong</creator><creator>Rajasekaran, Srivats</creator><creator>Liu, Haiyun</creator><creator>Mou, Daixiang</creator><creator>Zhou, X J</creator><creator>Merlin, Roberto</creator><creator>st, Michael</creator><creator>Cavalleri, Andrea</creator><general>Cornell University Library, arXiv.org</general><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>L6V</scope><scope>M7S</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>GOX</scope></search><sort><creationdate>20170220</creationdate><title>A dynamical stability limit for the charge density wave in K0.3MoO3</title><author>Mankowsky, Roman ; 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We compare the response to direct excitation of the lattice at mid-infrared frequencies with that to the injection of quasi-particles across the low-energy charge density wave gap and to charge transfer excitations in the near infrared. For all three cases, we observe a fluence threshold above which the amplitude-mode oscillation frequency is softened and the mode becomes increasingly damped. We show that all the data can be collapsed onto a universal curve in which the melting of the charge density wave occurs abruptly at a critical lattice excursion. These data highlight the existence of a universal stability limit for a charge density wave, reminiscent of the empirical Lindemann criterion for the stability of a crystal lattice.</abstract><cop>Ithaca</cop><pub>Cornell University Library, arXiv.org</pub><doi>10.48550/arxiv.1702.05897</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Charge density waves Charge transfer Crystal lattices Dynamic stability Excitation Femtosecond pulses Fluence Optical pulses Physics - Strongly Correlated Electrons Stability criteria |
| title | A dynamical stability limit for the charge density wave in K0.3MoO3 |
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