Charge density glass dynamics – Soft potentials and soft modes
An universal fingerprint of glasses has been found in low-temperature thermodynamic properties of charge/spin density wave (C/SDW) systems. Deviations from the well-known Debye, elastic continuum prediction for specific heat (flat Cp/T3 plot) appear as two anomalies; the upturn below 1K and a broad...
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| Veröffentlicht in: | Physica. B, Condensed matter Condensed matter, 2012-06, Vol.407 (11), p.1741-1745 |
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| container_title | Physica. B, Condensed matter |
| container_volume | 407 |
| creator | Biljaković, K. Starešinić, D. Lasjaunias, J.C. Remenyi, G. Mélin, R. Monceau, P. Sahling, S. |
| description | An universal fingerprint of glasses has been found in low-temperature thermodynamic properties of charge/spin density wave (C/SDW) systems. Deviations from the well-known Debye, elastic continuum prediction for specific heat (flat Cp/T3 plot) appear as two anomalies; the upturn below 1K and a broad bump at T∼10K (named Boson peak in glasses). The first one, inherent of localized two level systems within the shalow corrugated phase space, exhibits slow relaxation with the complex dynamics. The second one, “Boson peak-like peak” was attributed to the pinned mode and incomplete softening of CDW superstructural mode. We discuss similar Cp(T) features found also in incommensurate dielectrics with well documented soft-mode anomalies. |
| doi_str_mv | 10.1016/j.physb.2012.01.020 |
| format | Article |
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Deviations from the well-known Debye, elastic continuum prediction for specific heat (flat Cp/T3 plot) appear as two anomalies; the upturn below 1K and a broad bump at T∼10K (named Boson peak in glasses). The first one, inherent of localized two level systems within the shalow corrugated phase space, exhibits slow relaxation with the complex dynamics. The second one, “Boson peak-like peak” was attributed to the pinned mode and incomplete softening of CDW superstructural mode. 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We discuss similar Cp(T) features found also in incommensurate dielectrics with well documented soft-mode anomalies.</description><subject>Anomalies</subject><subject>Bosons</subject><subject>Charge and spin density waves</subject><subject>Charge density</subject><subject>Charge-density-wave systems</subject><subject>Collective effects</subject><subject>Condensed Matter</subject><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Dynamical systems</subject><subject>Dynamics</subject><subject>Electron states</subject><subject>Exact sciences and technology</subject><subject>Glass</subject><subject>Glasses</subject><subject>Physics</subject><subject>Soft mode</subject><subject>Soft potentials</subject><subject>Spin density waves</subject><subject>Strongly Correlated Electrons</subject><subject>Thermodynamics</subject><issn>0921-4526</issn><issn>1873-2135</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNp9kEtq3EAQhpsQQyaOT5CNNoFkIaW61A9pEYgZkjgwkIW9b9rdJU8PGmnSJRtm5zvkhjmJpYzxMrUp-PnqwSfEewmVBGk-76rD9si3FYLECmQFCK_ESja2LlHW-rVYQYuyVBrNG_GWeQdzSStX4ut66_MdFZEGTtOxuOs9cxGPg9-nwMXfxz_F9dhNxWGcaJiS77nwQyx4yfZjJH4nzro5pYvnfi5uvn-7WV-Vm18_fq4vN2VQAFOJlnTTRQ14q1ppjIZaG2mx6chqZRqFaJqmsfO33odoSUWsLba-UdQ1uj4Xn05rt753h5z2Ph_d6JO7uty4JQNojWlBP8iZ_XhiD3n8fU88uX3iQH3vBxrv2UlAbAFrVDNan9CQR-ZM3ctuCW5R63bun1q3qHUg3ax2nvrwfMBz8H2X_RASv4yibiVatXBfThzNYh4SZcch0RAopkxhcnFM_73zBDxLjZU</recordid><startdate>20120601</startdate><enddate>20120601</enddate><creator>Biljaković, K.</creator><creator>Starešinić, D.</creator><creator>Lasjaunias, J.C.</creator><creator>Remenyi, G.</creator><creator>Mélin, R.</creator><creator>Monceau, P.</creator><creator>Sahling, S.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope><scope>1XC</scope></search><sort><creationdate>20120601</creationdate><title>Charge density glass dynamics – Soft potentials and soft modes</title><author>Biljaković, K. ; Starešinić, D. ; Lasjaunias, J.C. ; Remenyi, G. ; Mélin, R. ; Monceau, P. ; Sahling, S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c400t-27e58fd502b49166503561728fe7546842268887135aacd7e4d23729a84ef853</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Anomalies</topic><topic>Bosons</topic><topic>Charge and spin density waves</topic><topic>Charge density</topic><topic>Charge-density-wave systems</topic><topic>Collective effects</topic><topic>Condensed Matter</topic><topic>Condensed matter: electronic structure, electrical, magnetic, and optical properties</topic><topic>Dynamical systems</topic><topic>Dynamics</topic><topic>Electron states</topic><topic>Exact sciences and technology</topic><topic>Glass</topic><topic>Glasses</topic><topic>Physics</topic><topic>Soft mode</topic><topic>Soft potentials</topic><topic>Spin density waves</topic><topic>Strongly Correlated Electrons</topic><topic>Thermodynamics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Biljaković, K.</creatorcontrib><creatorcontrib>Starešinić, D.</creatorcontrib><creatorcontrib>Lasjaunias, J.C.</creatorcontrib><creatorcontrib>Remenyi, G.</creatorcontrib><creatorcontrib>Mélin, R.</creatorcontrib><creatorcontrib>Monceau, P.</creatorcontrib><creatorcontrib>Sahling, S.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Hyper Article en Ligne (HAL)</collection><jtitle>Physica. 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| subjects | Anomalies Bosons Charge and spin density waves Charge density Charge-density-wave systems Collective effects Condensed Matter Condensed matter: electronic structure, electrical, magnetic, and optical properties Dynamical systems Dynamics Electron states Exact sciences and technology Glass Glasses Physics Soft mode Soft potentials Spin density waves Strongly Correlated Electrons Thermodynamics |
| title | Charge density glass dynamics – Soft potentials and soft modes |
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