Chia-Ling Chien

Chia-Ling Leng Photo

Dr. Chien is the Jacob L. Hain Professor of Physics, at the Johns Hopkins University, where he has been a professor since 1983. During 1997-2013 he has also served as the director of the NSF-funded Materials Research Science and Engineering Center (MRSEC). Dr. Chien earned the Ph.D. in Physics from Carnegie-Mellon University, in 1972. He is a Fellow of the American Physical Society (APS), and a fellow of the American Association for the Advancement of Sciences (AAAS). He received the 2004 APS David Adler Award, and was the first recipient of the Asian Union of Magnetics Societies Award in 2012. He has 400 publications, which have been cited over 16,000 times, and he has an H-factor of 64. Dr. Chien’s recent research accomplishments relevant for this proposal include: the first demonstration of voltage-controlled spintronic devices at < 1.5 V and 104 A/cm2 [1]; observation of intrinsic spin-dependent thermal transport [2]; fabrication of arrays of magnetic nanorings and tunnel junctions with 100-nm diameter and 20 nm ring width [3], and demonstration of Andreev reflection spectroscopy for quantitative measurements of spin polarization in metals and superconducting gaps in superconductors [4-5].

1. W. G. Wang, M. Li, S. Hageman, and C. L. Chien, “Electric field assisted switching in magnetic tunnel junctions,” Nature Mater. 11, 64 (2012).
2. S. Y. Huang, W. G. Wang, S. F. Lee, J. R. Kwo, and C. L. Chien, “Intrinsic spin-dependent thermal transport,” Phys. Rev. Lett. 107, 216604 (2011).
3. Q. Zhu, G. W. Chern, O. Tchernyshyov, X. C. Zhu, J. G. Zhu, and C. L. Chien, “Magnetic bistability and controllable reversal of asymmetric ferromagnetic nanorings,” Phys. Rev. Lett. 96, 027203 (2006).
4. Y. Ji, G. J. Strijkers, F. Y. Yang, C. L. Chien, J. M. Byers, A. Anguelouch, G. Xiao, and A. Gupta, “Determination of spin polarization of half-metallic CrO2 by point contact Andreev reflection,” Phys. Rev. Lett. 86, 5585 (2001).
5. T. Y. Chen, Z. Tesanovic, R. H. Liu, X. H. Chen, and C. L. Chien, “A BCS-like gap in the superconducting SmFeAsO0.85F0.15,” Nature 453, 1224 (2008).