Faculty Profile
 
  ZHANG Yuheng
     
Department: Hefei National Laboratory of Physical Sciences at the Microscale
Mailing Address:
Hefei National Laboratory of Physical Sciences at the Microscale, University of Science and Technology of China, 96 Jinzhai Rd, Hefei, Anhui, 230026, PR China
Postal Code:
230026
Phone:
+86-551-63602808
Fax:
0551-63602808
Homepage:
http://dsxt.ustc.edu.cn/zj_js.asp?zzid=235
 
       

Research Profile

    Zhang Yuheng, academician of Chinese Academy of Sciences (CAS), physicist, professor at the University of Science and Technology of China (USTC), Chief Scientist of High Magnetic Field Laboratory, CAS. He graduated from the Department of Physics, Nanjing University in 1961, and finished his postgraduate study at the Institute of Physics, CAS in 1965.
     Prof. Zhang is mainly engaged in research on superconductivity, giant magnetoresistance and low-dimensional physics. Through collaborative research, he experimentally confirmed the physical origin of the broadening of R/T curves in high-temperature superconductors was flux creep effects. Based on observations over the YBCO / PrBCO multilayer structure, he has made constructive comments on the physical causes of the negative Hall Effect in high temperature superconducting materials. Cooperative research has also been done on the incommensurate modulation of the crystal structure in Bi-based superconducting materials by Professor Zhang and he discovered, based on element substitution experiments, the physical reason lied in the lattice mismatch between Bi2O3 layer and perovskite layer. He has conducted further in-depth investigations into the phase separation phenomenon and elements substitution effects of Bi-based superconducting materials. He also discovered that the carrier in Mn-based oxides was lattice polaron rather than magnetopolaron polaron through appropriate doping experiments and physical measurements, based on which he proposed the physical model for the transformation from polaron conductivity to jump conductivity in such materials. Through physical measurements of Cr-doped samples, Professor Zhang put forward the double exchange mechanism in Mn-based oxides and the method of observing phase separation in giant magnetoresistance materials through electron spin resonance.
Professor Zhang has received one first prize of the CAS Natural Science Award in 1993 and one second prize of the National Natural Science Award in 2009.  
 
     
Selected Publications
 
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TEL: +86-551-63600279, E-mail: tianlin@ustc.edu.cn