Thermal conductivity in the doped two-leg ladder antiferromagnet Sr_14-x Ca_x Cu_24 O_41

淡江大學機構典藏 > 理學院 > 物理學系暨研究所 > 期刊論文 > Item 987654321/27886

請使用永久網址來引用或連結此文件: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/27886

題名:	Thermal conductivity in the doped two-leg ladder antiferromagnet Sr_14-x Ca_x Cu_24 O_41
作者:	Qin, Jihong;Feng, Shiping;Yuan, Feng;Chen, Wei-yeu
貢獻者:	淡江大學物理學系
日期:	2005-02
上傳時間:	2013-07-09 15:22:47 (UTC+8)
出版者:	Amsterdam: Elsevier BV * North-Holland
摘要:	Within the t-J model, the heat transport of the doped two-leg ladder material Sr14-xCaxCu24O41 is studied in the doped regime where superconductivity appears under pressure in low temperatures. The energy dependence of the thermal conductivity κc(ω) shows a low-energy peak, while the temperature dependence of the thermal conductivity κc(T) is characterized by a broad band. In particular, κc(T) increases monotonously with increasing temperature at low temperatures T<0.05J, and is weakly temperature-dependent in the temperature range 0.05J<T<0.1J, then decreases for temperatures T>0.1J, in qualitative agreement with experiments. Our result also shows that although both dressed holons and spinons are responsible for the thermal conductivity, the contribution from the dressed spinons dominates the heat transport of Sr14-xCaxCu24O41.
關聯:	Physics Letters. Section A: General, Atomic and Solid State Physics 335(5-6), pp.477-485
DOI:	10.1016/j.physleta.2004.12.051
顯示於類別:	[物理學系暨研究所] 期刊論文

文件中的檔案:

檔案	描述	大小	格式	瀏覽次數
index.html		0Kb	HTML	172	檢視/開啟
Thermal conductivity in the doped two-leg ladder antiferromagnet Sr_14-x Ca_x Cu_24 O_41.pdf		171Kb	Adobe PDF	1	檢視/開啟

在機構典藏中所有的資料項目都受到原著作權保護.

TAIR相關文章