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Jiaqiang Yan

Joint Faculty Associate Professor

Jiaqiang Ya

Contact Information

C214 ORNL Building 5700,
Bethel Valley Road,
Oak Ridge,
TN 37831-6056

Phone
865-576-8673

Email
jyan6@utk.edu

Personal Website

Biography

My research focuses on the design, growth, and characterization of novel materials with unusual electrical, magnetic, thermal properties.  My work involves rational synthesis of novel materials, mainly in single crystal form, and investigation of the structure-function relationships. The goal is to understand how to design new materials with desired functionalities. Recent projects include: (1) Emergent phenomena in 4d/5d transition metal oxides arising from the competition between comparable energy scales, (2) CDW and superconductivity, and (3) High entropy oxides.

Research Publications

  1. J.-Q. Yan, B. C. Sales, M. A. Susner, and M. A. McGuire, “Flux growth in a horizontal configuration: an analog to vapor transport growth”, Phys. Rev. Mater 1, 023402 (2017).
  2. A. Banerjee, J.-Q. Yan, J. Knolle, C. A. Bridges, M. B. Stone, M. D. Lumsden, D. G. Mandrus, D. A. Tennant, R. Moessner, S. E Nagler, “Neutron scattering in the proximate quantum spin liquid α-RuCl3”, Science 356(6342), 1055-1059 (2017).
  3. ZY Zhao, S Calder, AA Aczel, MA McGuire, BC Sales, DG Mandrus, G Chen, N Trivedi, HD Zhou, J.-Q. Yan, “Fragile singlet ground-state magnetism in the pyrochlore osmates R2Os2O7 (R=Y and Ho)”, Phys. Rev. B 93, 134426 (2016).
  4. W. Tian, C. Svoboda, M. Ochi, M. Matsuda, H. B. Cao, J.-G. Cheng, B. C. Sales, D. G. Mandrus, R. Arita, N. Trivedi, and J.-Q. Yan, “High antiferromagnetic transition temperature of the honeycomb compound SrRu2O6”, Phys. Rev. B 92, 100404(R) (2015).
  5. J.-Q. Yan, “Flux growth utilizing the reaction between flux and crucible”, Journal of Crystal Growth 416, 62-65 (2015).
  6. Jinguang Cheng , Wei Tian, Jianshi Zhou, Vincent M. Lynch, Hugo Steinfink, Arumugam Manthiram , Andrew F. May, Vasile O. Garlea, Joerg C. Neuefeind and Jiaqiang Yan, “Crystal and Magnetic Structures and Physical Properties of a New Pyroxene NaMnGe2O6 Synthesized under High Pressure,” J. Am. Chem. Soc. 135(7) 2776–2786 (2013).
  7. J.-Q. Yan, B. Jensen, K. W. Dennis, et al. “Flux requirements for the growth of RFeAsO (R=rare earth) superconductors”,  Applied Physics Letters  98, 072504 (2011).
  8. J.-Q. Yan, S. Nandi, J. L. Zarestky, W. Tian, A. Kreyssig, B. Jensen, A. Kracher, K. W. Dennis, R. J. McQueeney, A. I. Goldman, R. W. McCallum, T. A. Lograsso, “Flux growth at ambient pressure of millimeter-sized single crystals of LaFeAsO, LaFeAsO1−xFx, and LaFe1−xCoxAsO”, Applied Physics Letters, 95, 222504 (2009).
  9. J.-Q. Yan,  J.-S. Zhou, J.B. Goodenough, Y. Ren, J.G. Cheng, S. Chang, J. Zarestky, O. Garlea, A.  LIobet, H.D. Zhou, Y. Sui, W.H. Su, and  R. J. McQueeney, “Orbital Fluctuations and Orbital Flipping in RVO3 Perovskites”, Phys.  Rev. Lett. 99 197201 (2007).
  10. J.-Q. Yan, J.-S. Zhou and J. B. Goodenough, “Unusually strong orbit-phonon coupling in the RVO3 perovskites”,  Phys. Rev. Lett. 93, 235901 (2004).