关键词: 极端条件/
超导电性/
交流磁化率
English Abstract
In-situ magnetic measurements of substances under extreme conditions
Huang Xiao-Li,Wang Xin,
Liu Ming-Kun,
Liang Yong-Fu,
Liu Bing-Bing,
Cui Tian
1.State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun 130012, China
Fund Project:Project supported by the National Natural Science Foundation of China (Grant Nos. 11504127, 51572108, 51632002, 11634004, 11274137, 11474127), the Program for Changjiang Scholars and Innovative Research Team in University of Ministry of Education of China (Grant No. IRT_15R23), the Fund for Fostering Talents in Basic Science of the National Natural Science Foundation of China (Grant No. J1103202), and the China Postdoctoral Science Foundation (Grant No. 2015M570265).Received Date:26 December 2016
Accepted Date:13 January 2017
Published Online:05 February 2017
Abstract:Temperature and pressure are the two most important thermodynamic elements, which determine the existent state of substance. Low temperature and high pressure are significant and key extreme conditions in the modern experimental science, providing new routes for many subjects such as physics, chemistry, materials and biology, and playing an important role in finding new phenomena. The magnetic research under extreme conditions is an important branch of the study of the extreme conditions, which not only presents the magnetic changes of the material under extreme conditions, but also is an important means to explore the high temperature superconductors. In this article, we elaborate the principle and method of measuring the magnetic susceptibility and superconducting transition temperature under high pressure. The in-situ magnetic measurement system under high pressure and low temperature is also briefly introduced, designed and installed by ourselves. Using the in-situ magnetic measurement system, the magnetic transition of iron and the superconducting transition temperature of the yttrium barium copper oxide sample under high pressure are measured.
Keywords: extreme conditions/
superconductivity/
alternating current magnetic susceptibility
