无序度对Au/Pd膜热电势的影响  

EFFECT OF DISORDER ON THE THERMOPOWER OF Au/Pd FILMS

作　　者：景秀年[1] 李山林[1] 吕力[1] 张殿琳[1] 林志忠[2] 

机构地区：[1]中国科学院极端条件物理开放实验室中国科学院物理研究所,凝聚态物理中心北京100080 [2]台湾交通大学物理研究所

出　　处：《低温物理学报》2002年第2期125-128,共4页Low Temperature Physical Letters

摘　　要：我们用磁控溅射的方法制备了一系列无序度不同的Au50 Pd50 膜 .在 1 3K～30 0K的温度范围内 ,我们对不同无序度Au50 Pd50 膜的电阻率、热电势作了系统的测量 ,发现热电势随无序度的增加而减小 ,其温度依赖关系与同种成份的晶态合金的热电势温度依赖关系也很不相同 .We have successfully fabricated a series of Au\-\{50\}Pd\-\{50\} films with different degrees of disorder realized by adjusting the input power of DC magnetron sputtering. The resistivity and thermopower of the samples have then been measured in the temperature range of 13 to 300K. It is found that the thermopower systematically decreases with the increase of disorder, and its temperature dependence also substantially changes compared to that of crystalline alloy of the same composition.

关 键 词：无序度 Au/Pd膜 热电势 磁控溅射 铜/钯膜 

分 类 号：O513[理学—低温物理]