Temperature dependence of giant magnetoresistance in CoAg granular composite |
| |
| Affiliation: | 1. CCAST(World Laboratory), P.O. Box 8730, Beijing 100080, China;2. Department of Physics, Suzhou University, Suzhou 215006, China;1. Tianjin Key Laboratory of Advanced Functional Porous, Materials Institute for New Energy Materials & Low-Carbon Technologies, Tianjin University of Technology, Tianjin 300384, China;2. Institute for Advanced Materials and Devices, Suzhou University of Science and Technology, Suzhou 215009, China;3. School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China;1. School of Chemical Engineering and Technology, Tianjin University, Tianjin, PR China;2. School of Environmental Science and Engineering, Tianjin University, Tianjin, PR China;3. Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin, PR China;1. School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, South China University of Technology, 510640 Guangzhou, China;2. Department of Chemical Engineering, Beijing Key Laboratory of Membrane Materials and Engineering, Tsinghua University, Beijing 100084, China;1. Institute for Advanced Study, Chengdu University, Chengdu 610106, Sichuan, China;2. Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China;3. Chemistry Department, Faculty of Science & Center of Excellence for Advanced Materials Research, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia;4. Catalysis Research Group (CRG), Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, 61413 Abha, Saudi Arabia;1. College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, Shandong, China;2. Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, Sichuan, China;3. Institute for Advanced Study, Chengdu University, Chengdu 610106, Sichuan, China;4. College of Chemistry, Sichuan University, Chengdu 610064, Sichuan, China;5. College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, Shandong, China;6. Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia;7. College of Engineering Al-Muzahmia Branch, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia |
| |
| Abstract: | The temperature dependence of the giant magnetoresistance (GMR) of CoAg composite is studied phenomenologically in this paper. It is considered that the composite contains both large magnetic grains and tiny clusters. The tiny clusters, composing of several atoms, lead to an almost linear increase of the giant magnetoresistance with the temperature reduction. Our calculations are in good agreement with recent experimental data for a nanogranular CoAg films. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
