Abstract
We have measured the thermal conductivity along the b axis, κb parallel to the one-dimensional (1D) spin chain of Sr 2Cu1-xPdxO3 single crystals including nonmagnetic impurities of Pd2+, in order to investigate possible ballistic thermal conduction. It has been found that the mean free path of spinons estimated from the thermal conductivity due to spinons, which is obtained by subtracting the thermal conductivity due to phonons from κb using the Debye model, is comparable with the average length of finite spin chains between spin defects estimated from the magnetic susceptibility measurements. This proves that the thermal conduction due to spinons at low temperatures in the 1D spin system Sr2CuO3 is ballistic.
| Original language | English |
|---|---|
| Title of host publication | AIP Conference Proceedings |
| Pages | 1265-1266 |
| Number of pages | 2 |
| Volume | 850 |
| DOIs | |
| Publication status | Published - 2006 |
| Externally published | Yes |
| Event | LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 - Orlando, FL, United States Duration: Aug 10 2006 → Oct 17 2006 |
Other
| Other | LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 |
|---|---|
| Country | United States |
| City | Orlando, FL |
| Period | 8/10/06 → 10/17/06 |
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Keywords
- Impurity effects
- Low-dimensional quantum spin system
- Thermal conductivity
ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Evidence for ballistic thermal conduction in the one-dimensional spin system Sr2CuO3. / Takahashi, N.; Kawamata, T.; Adachi, T.; Noji, T.; Koike, Y.; Kudo, Kazutaka; Kobayashi, N.
AIP Conference Proceedings. Vol. 850 2006. p. 1265-1266.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Evidence for ballistic thermal conduction in the one-dimensional spin system Sr2CuO3
AU - Takahashi, N.
AU - Kawamata, T.
AU - Adachi, T.
AU - Noji, T.
AU - Koike, Y.
AU - Kudo, Kazutaka
AU - Kobayashi, N.
PY - 2006
Y1 - 2006
N2 - We have measured the thermal conductivity along the b axis, κb parallel to the one-dimensional (1D) spin chain of Sr 2Cu1-xPdxO3 single crystals including nonmagnetic impurities of Pd2+, in order to investigate possible ballistic thermal conduction. It has been found that the mean free path of spinons estimated from the thermal conductivity due to spinons, which is obtained by subtracting the thermal conductivity due to phonons from κb using the Debye model, is comparable with the average length of finite spin chains between spin defects estimated from the magnetic susceptibility measurements. This proves that the thermal conduction due to spinons at low temperatures in the 1D spin system Sr2CuO3 is ballistic.
AB - We have measured the thermal conductivity along the b axis, κb parallel to the one-dimensional (1D) spin chain of Sr 2Cu1-xPdxO3 single crystals including nonmagnetic impurities of Pd2+, in order to investigate possible ballistic thermal conduction. It has been found that the mean free path of spinons estimated from the thermal conductivity due to spinons, which is obtained by subtracting the thermal conductivity due to phonons from κb using the Debye model, is comparable with the average length of finite spin chains between spin defects estimated from the magnetic susceptibility measurements. This proves that the thermal conduction due to spinons at low temperatures in the 1D spin system Sr2CuO3 is ballistic.
KW - Impurity effects
KW - Low-dimensional quantum spin system
KW - Thermal conductivity
UR - http://www.scopus.com/inward/record.url?scp=33947540212&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33947540212&partnerID=8YFLogxK
U2 - 10.1063/1.2355166
DO - 10.1063/1.2355166
M3 - Conference contribution
AN - SCOPUS:33947540212
SN - 0735403473
SN - 9780735403475
VL - 850
SP - 1265
EP - 1266
BT - AIP Conference Proceedings
ER -