Thermal conductivity of quasi-one-dimensional antiferromagnetic spin-chain materials
We study heat transport in quasi-one-dimensional spin-chain systems by considering the model of one-dimensional bosonic spin excitations interacting with three-dimensional phonons and impurities in the limit of weak spin-lattice coupling and fast spin excitations. A combined effect of the phonon and...
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| Veröffentlicht in: | Physical review letters 2005-03, Vol.94 (8), p.087201.1-087201.4, Article 087201 |
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| container_end_page | 087201.4 |
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| container_title | Physical review letters |
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| creator | ROZHKOV, A. V CHERNYSHEV, A. L |
| description | We study heat transport in quasi-one-dimensional spin-chain systems by considering the model of one-dimensional bosonic spin excitations interacting with three-dimensional phonons and impurities in the limit of weak spin-lattice coupling and fast spin excitations. A combined effect of the phonon and impurity scatterings yields the following spin-boson thermal conductivity behavior: kappa(s) proportional to T2 at low, kappa(s) proportional to T-1 at intermediate, and kappa(s)= const at higher temperatures. Our results agree well with the existing experimental data for Sr2CuO3. We predict an unusual dependence on the impurity concentration for a number of observables and propose further experiments. |
| doi_str_mv | 10.1103/PhysRevLett.94.087201 |
| format | Article |
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V</creatorcontrib><creatorcontrib>CHERNYSHEV, A. L</creatorcontrib><title>Thermal conductivity of quasi-one-dimensional antiferromagnetic spin-chain materials</title><title>Physical review letters</title><addtitle>Phys Rev Lett</addtitle><description>We study heat transport in quasi-one-dimensional spin-chain systems by considering the model of one-dimensional bosonic spin excitations interacting with three-dimensional phonons and impurities in the limit of weak spin-lattice coupling and fast spin excitations. A combined effect of the phonon and impurity scatterings yields the following spin-boson thermal conductivity behavior: kappa(s) proportional to T2 at low, kappa(s) proportional to T-1 at intermediate, and kappa(s)= const at higher temperatures. Our results agree well with the existing experimental data for Sr2CuO3. We predict an unusual dependence on the impurity concentration for a number of observables and propose further experiments.</description><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Exact sciences and technology</subject><subject>General theory and models of magnetic ordering</subject><subject>Magnetic properties and materials</subject><subject>Physics</subject><subject>Spin chain models</subject><issn>0031-9007</issn><issn>1079-7114</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><recordid>eNpNkFFr2zAUhcVYWdJsP2HDL-ub0ytd27IeR2m3QWClpM9Glq4XDVtOJDmQf1-PBNKn8_Kdc-Bj7CuHNeeA98-7U3yh44ZSWqtiDbUUwD-wJQepcsl58ZEtAZDnCkAu2G2M_wCAi6r-xBa8lDUqgUu23e4oDLrPzOjtZJI7unTKxi47TDq6fPSUWzeQj270M6V9ch2FMA76r6fkTBb3zudmp53PBp0oON3Hz-ymm4O-XHLFXp8etw-_8s2fn78ffmxygyhTrmqO0Nq2E1QiKiACWajWSjSq4MYWlTHWtoLarjUoTYVCoq1lJVtRYlfiit2dd_dhPEwUUzO4aKjvtadxik0ly0LI-WXFyjNowhhjoK7ZBzfocGo4NP91Nu90Nqpozjrn3rfLwdQOZK-ti78Z-H4BdDS674L2xsUrV1VlCSjwDahMgu0</recordid><startdate>20050304</startdate><enddate>20050304</enddate><creator>ROZHKOV, A. 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L</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Thermal conductivity of quasi-one-dimensional antiferromagnetic spin-chain materials</atitle><jtitle>Physical review letters</jtitle><addtitle>Phys Rev Lett</addtitle><date>2005-03-04</date><risdate>2005</risdate><volume>94</volume><issue>8</issue><spage>087201.1</spage><epage>087201.4</epage><pages>087201.1-087201.4</pages><artnum>087201</artnum><issn>0031-9007</issn><eissn>1079-7114</eissn><coden>PRLTAO</coden><abstract>We study heat transport in quasi-one-dimensional spin-chain systems by considering the model of one-dimensional bosonic spin excitations interacting with three-dimensional phonons and impurities in the limit of weak spin-lattice coupling and fast spin excitations. A combined effect of the phonon and impurity scatterings yields the following spin-boson thermal conductivity behavior: kappa(s) proportional to T2 at low, kappa(s) proportional to T-1 at intermediate, and kappa(s)= const at higher temperatures. Our results agree well with the existing experimental data for Sr2CuO3. We predict an unusual dependence on the impurity concentration for a number of observables and propose further experiments.</abstract><cop>Ridge, NY</cop><pub>American Physical Society</pub><pmid>15783923</pmid><doi>10.1103/PhysRevLett.94.087201</doi><tpages>1</tpages></addata></record> |
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| source | American Physical Society Journals |
| subjects | Condensed matter: electronic structure, electrical, magnetic, and optical properties Exact sciences and technology General theory and models of magnetic ordering Magnetic properties and materials Physics Spin chain models |
| title | Thermal conductivity of quasi-one-dimensional antiferromagnetic spin-chain materials |
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