Low temperature thermal conductivity of bilayer lanthanum-strontium-manganite (La1.2Sr1.8Mn2O7 [electronic resource]
Thermal conductivity measurements were performed on bilayer manganite La{sub 1.2}Sr{sub 1.8}Mn₂O₇ down to 0.1 K and up to 7.5 T. Due to the fact that ferromagnetic magnons can be largely gapped with a magnetic field, we could separate the magnon contribution to the thermal conductivity as well as th...
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Online Access |
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| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C. : Oak Ridge, Tenn. :
United States. Dept. of Energy ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy,
2008.
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| Subjects: |
MARC
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| 245 | 0 | 0 | |a Low temperature thermal conductivity of bilayer lanthanum-strontium-manganite (La1.2Sr1.8Mn2O7 |h [electronic resource] |
| 260 | |a Washington, D.C. : |b United States. Dept. of Energy ; |a Oak Ridge, Tenn. : |b distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, |c 2008. | ||
| 336 | |a text |b txt |2 rdacontent. | ||
| 337 | |a computer |b c |2 rdamedia. | ||
| 338 | |a online resource |b cr |2 rdacarrier. | ||
| 500 | |a Published through the Information Bridge: DOE Scientific and Technical Information. | ||
| 500 | |a 01/01/2008. | ||
| 500 | |a "la-ur-08-06559" | ||
| 500 | |a " la-ur-08-6559" | ||
| 500 | |a Phys. Rev. Ltrs. ISSN 0031-9007; PRLTAO FT. | ||
| 500 | |a Hur, N; Ronning, Filip; Vekhter, I; Kurita, Nobuyuki; Mcclellan, Kenneth J; Movshovich, Roman. | ||
| 520 | 3 | |a Thermal conductivity measurements were performed on bilayer manganite La{sub 1.2}Sr{sub 1.8}Mn₂O₇ down to 0.1 K and up to 7.5 T. Due to the fact that ferromagnetic magnons can be largely gapped with a magnetic field, we could separate the magnon contribution to the thermal conductivity as well as the specific heat. Consequently, we find evidence for the transport of heat by 2-dimensional ferromagnetic magnons which are scattered by electrons. Assuming that the Wiedemann-Franz law is obeyed we find a self consistent analysis which shows a phonon thermal conductivity at low temperatures proportional to T{sup 1.7}. This is evidence that structurally glassy dynamics persist down to very low temperatures in the manganites. | |
| 536 | |b AC52-06NA25396. | ||
| 650 | 7 | |a Wiedemann-franz Law. |2 local. | |
| 650 | 7 | |a Strontium Compounds. |2 local. | |
| 650 | 7 | |a Specific Heat. |2 local. | |
| 650 | 7 | |a Dynamics. |2 local. | |
| 650 | 7 | |a Magnons. |2 local. | |
| 650 | 7 | |a Heat Transfer. |2 local. | |
| 650 | 7 | |a Magnetic Fields. |2 local. | |
| 650 | 7 | |a Lanthanum Compounds. |2 local. | |
| 650 | 7 | |a Temperature Range 0013-0065 K. |2 local. | |
| 650 | 7 | |a Temperature Range 0065-0273 K. |2 local. | |
| 650 | 7 | |a Thermal Conductivity. |2 local. | |
| 650 | 7 | |a Manganese Oxides. |2 local. | |
| 650 | 7 | |a Phonons. |2 local. | |
| 650 | 7 | |a Electrons. |2 local. | |
| 650 | 7 | |a Heat. |2 local. | |
| 710 | 2 | |a Los Alamos National Laboratory. |4 res. | |
| 710 | 1 | |a United States. |b Department of Energy. |4 spn. | |
| 710 | 1 | |a United States. |b Department of Energy. |b Office of Scientific and Technical Information. |4 dst. | |
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