Wei Tian

Wei Tian

Position: Instrument Scientist

Instrument: Fixed-Incident-Energy Triple-Axis Spectrometer

Group: Triple-Axis Spectroscopy

Division: Quantum Condensed Matter Division

Facility: High Flux Isotope Reactor

Contact: tianwn@ornl.gov or (865) 574-6427

Education

  • Ph.D. Department of Physics and Astronomy, University of Tennessee, 2006.
  • B.S. Department of Nuclear Physics, Fudan University, 1992.

Research

Study the physical properties of correlated electron materials with the potential for interesting electrical and/or magnetic behaviors using different techniques, in particularly, using neutron
scattering techniques.

Selected Publications

  • W. T. Jayasekara, Wei Tian, H. Hodovanets, P. C. Canfield, S. L. Budko, A. Kreyssig, and A. I. Goldman,“Complex magnetic ordering in CeGe1.76 studied by neutron diffraction”, Phys. Rev. B 90, 134423 (2014).
  • Meng Wang, Wei Tian, P. Valdivia, Songxue Chi, E. Bourret-Courchesne, Pengcheng Dai, and R. J. Birgeneau,“Two spatially separated phases in semiconducting Rb0.8Fe1.5S2”, Phys. Rev. B 90, 125148 (2014).
  • A. Sapkota, G. S. Tucker, M. Ramazanoglu, W. Tian, N. Ni, R. J. Cava, R. J. McQueeney, A. I. Goldman, and A. Kreyssig1 “Lattice distortion and stripelike antiferromagnetic order in Ca10(Pt3As8)(Fe2As2)5”, Phys. Rev. B 90, 100504(R) (2014).
  • Ling Cai, Jean Toulouse, Haosu Luo, Wei Tian, “Anisotropic phonon coupling in relaxor ferroelectric (Na1/2Bi1/2)TiO3 near its high temperature phase transition”, Phys. Rev. B 50, 054118 (2014).
  • X. Ke, J. Peng, W. Tian, Tao Hong, M. Zhu, and Z. Q. Mao, “Commensurate-incommensurate magnetic phase transition in the Fe-doped ruthenate bilayer Ca3Ru2O7”, Phys. Rev. B 89 220407(R) (2014).
  • Chetan Dhital, Tom Hogan, Z. Yamani, Robert J. Birgeneau, W. Tian, M. Matsuda, A. S. Sefat, Ziqiang Wang, and Stephen D. Wilson, “Evolution of antiferromagnetic susceptibility under uniaxial pressure in Ba(Fe1−xCox)2As2”, Phys. Rev. B 89, 214404 ( 2014).
  • Chenglin Zhang, Leland W. Harriger, Zhiping Yin, Weicheng Lv, Miaoyin Wang, Guotai Tan, Yu Song, D. L. Abernathy, Wei Tian, Takeshi Egami, Kristjan Haule, Gabriel Kotliar, and Pengcheng Dai, “Effect of Pnictogen Height on Spin Waves in Iron Pnictides”, Phys. Rev. Let 112, 217202 (2014).
  • Tao Hong, K. P. Schmidt, K. Coester, F. F. Awwadi, M. M. Turnbull, Y. Qiu, J. A Rodriguez-Rivera, M. Zhu, X. Ke, C. P. Aoyama, Y. Takano, Huibo Cao, , J. Ma, R. Custelcean, H. D. Zhou, and M. Matsuda, “Magnetic ordering induced by interladder coupling in the spin-1/2 Heisenberg two-leg ladder antiferromagnet C9H18N2CuBr4”, Phys. Rev. B 89, 174432 (2014).
  • W. Tian, Guotai Tan, Liu Liu, Jinxing Zhang, Barry Winn, Tao Hong, J. A. Fernandez-Baca, Chenglin Zhang, and Pengcheng Dai, “Influence of doping on the spin dynamics and magneto- electric effect in hexagonal Y0.7Lu0.3MnO3”, Phys. Rev. B 89, 144417 (2014).
  • J. Ma, V. O. Garlea, A. Rondinone, A. A. Aczel, S. Calder, C. dela Cruz, R. Sinclair, W. Tian, Songxue Chi, A. Kiswandhi, J. S. Brooks, H. D. Zhou, and M. Matsuda, “Magnetic and struc- tural phase transitions in the spinel compound Fe1+xCr2−xO4”, Phys. Rev. B 89, 134106(2014).
  • Chetan Dhital, Tom Hogan, Wenwen Zhou, Xiang Chen, Zhensong Ren, Mani Pokharel, Yoshinori Okada, M. Heine, Wei Tian, Z. Yamani, C. Opeil, J. S. Helton, J. W. Lynn, Ziqiang Wang, Vidya Madhavan, and Stephen D. Wilson, “Carrier localization and electronic phase separation in a doped spin-orbit-driven Mott phase in Sr3(Ir1xRux)2O7”, Nat. Commun DOI: 10.1038/ncomms4377 (2014).
  • Qiang Zhang, Wei Tian, Haifeng Li, Jong-Woo Kim, Jiaqiang Yan, R. William McCallum, Thomas A. Lograsso, Jerel L. Zarestky, Sergey L. Budko, Robert J. McQueeney, and David Vaknin, “Magnetic structures and interplay between rare-earth Ce and Fe magnetism in single-crystal CeFeAsO”, Phys. Rev. B 88, 174517 (2013).
  • J. Ma, C. D. Dela Cruz, Tao Hong, W. Tian, A. A. Aczel, Songxue Chi, J.-Q. Yan, Z. L. Dun, H. D. Zhou, and M. Matsuda, “Magnetic phase transition in the low-dimensional compound BaMn2Si2O7”, Phys. Rev. B 88, 144405 (2013).
  • Xingye Lu, H. Gretarsson, Rui Zhang, Xuerong Liu, Huiqian Luo, Wei Tian, Mark Laver, Z. Ya- mani, Young-June Kim, A. H. Nevidomskyy, Qimiao Si, and Pengcheng Dai, “Avoided quantum criticality and magnetoelastic coupling in BaFe2−xNixAs2”, Phys. Rev. Lett 110, 257001 (2013).
  • Wenbin Wang, Jun Zhao, Zheng Gai, Nina Balke, Miaofang Chi, Ho Nyung Lee, Wei Tian, Leyi Zhu, Xuemei Cheng, David J. Keavney, Jieyu Yi, Thomas Z. Ward, Paul C. Snijders, Hans M. Christen, Jian Shen and Xiaoshan Xu, “Room-temperature multiferroic hexagonal LuFeO3 films”, Phys. Rev. Lett 110, 237601 (2013).
  • J. Ma, O. Delaire, A. F. May, C. E. Carlton, M. A. McGuire, L. H. VanBebber, D. L. Abernathy, G. Ehlers, Tao Hong, A. Huq, Wei Tian, V. M. Keppens, Y. Shao-Horn, and B. C. Sales, “Glass-like phonon scattering from a spontaneous nanostructure in AgSbTe2”, Nat. Nanotechnology DOI: 10.1038/nnano.2013.95 (2013).
  • J. Lamsal, G. S. Tucker, T. W. Heitmann, A. Kreyssig, A. Jesche, Abhishek Pandey, Wei Tian, R. J. McQueeney, D. C. Johnston, and A. I. Goldman, “Persistence of local-moment antiferro- magnetic order in Ba1−xKxMn2As2”, Phys. Rev. B 87, 144418 (2013).
  • Jin Peng, X. Ke, Gaochao Wang, J. E. Ortmann, David Fobes, Tao Hong, Wei Tian, Xiaoshan Wu, and Z. Q. Mao, “From quasi-two-dimensional metal with ferromagnetic bilayers to Mott insulator with G-type antiferromagnetic order in Ca3(Ru1−xTix)2O7”, Phys. Rev. B 87, 085125 (2013).
  • D. K. Pratt, S. Chang, W. Tian, A. A. Taskin, Yoichi Ando, J. L. Zarestky, A. Kreyssig, A. I. Goldman, and R. J. McQueeney,“Checkerboard to stripe charge ordering transition in TbBaFe2O5”, Phys. Rev. B 87, 045127 (2013).
  • J. Cheng, W. Tian, J. Zhou, V. M. Lynch, H. Steinfink, A. Manthiram, A. F May, V. O. Garlea, J. C. Neuefeind, and J. Yan, “Crystal and magnetic structures and physical properties of a new pyroxene NaMnGe2O6 synthesized under high pressure”, Journal of the America Chemical Society DOI: 10.1021/ja312038g (2013).
  • Chetan Dhital, Sovit Khadka, Z. Yamani, Clarina de la Cruz, T. C. Hogan, S. M. Disseler, Mani Pokharel, K. C. Lukas, Wei Tian, C. P. Opeil, Ziqiang Wang, and Stephen D. Wilson,“Spin ordering and electronic texture in the bilayer iridate Sr3Ir2O7”, Phys. Rev. B 86, 100401(R) (2012).
  • C. H. Wang, M. D. Lumsden, R. S. Fishman, G. Ehlers, T. Hong, W. Tian, H. Cao, A. Podlesnyak, C. Dunmars, J. A. Schlueter, J. L. Manson, and A. D. Christianson,“Magnetic properties of the S=1/2 quasisquare lattice antiferromagnet CuF2(H2O)2(pyz) (pyz = pyrazine) investigated by neutron scattering”, Phys. Rev. B 86, 064439 (2012).
  • G. S. Tucker, D. K. Pratt, M. G. Kim, S. Ran, A. Thaler, G. E. Granroth, K. Marty, W. Tian, J. L. Zarestky, M. D. Lumsden, S. L. Bud’ko, P. C. Canfield, A. Kreyssig, A. I. Goldman, and R. J. McQueeney,“Competition between stripe and checkerboard magnetic instabilities in Mn-doped BaFe2As2”, Phys. Rev. B 86, 020503(R) (2012).
  • Rasmus Toft-Petersen, Niels H. Andersen, Haifeng Li, Jiying Li, Wei Tian, Sergey L. Bud’ko, Thomas B. S. Jensen, Christof Niedermayer, Mark Laver, Oksana Zaharko, Jeffrey W. Lynn, and David Vaknin,“Magnetic phase diagram of magnetoelectric LiMnPO4”, Phys. Rev. B 85, 224415 (2012).
  • Dalgis Mesa, Feng Ye, Songxue Chi, J. A. Fernandez-Baca, W. Tian, Biao Hu, R. Jin, E. W. Plummer, and Jiandi Zhang, “Single-bilayer E-type antiferromagnetism in Mn-substituted Sr3Ru2O7: Neutron scattering study”, Phys. Rev. B 85, 180410(R) (2012).
  • Jinsheng Wen, Zhijun Xu, Guangyong Xu, Qing Jie, M. Hcker, A. Zheludev, Wei Tian, B. L. Winn, J. L. Zarestky, D. K. Singh, Tao Hong, Qiang Li, Genda Gu, and J. M. Tran- quada, “Probing the connections between superconductivity, stripe order, and structure in La1.905Ba0.095Cu1−y Zny O4 ”, Phys. Rev. B 85, 134512 (2012).
  • C. R. Rotundu, W. Tian, K. C. Rule, T. R. Forrest, J. Zhao, J. L. Zarestky, and R. J. Birgeneau, “Neutron scattering study of underdoped Ba1−xKxFe2As2 (x=0.09 and 0.17) self-flux-grown single crystals and the universality of the tricritical point”, Phys. Rev. B 85, 144506 (2012).
  • Chetan Dhital, Z. Yamani, Wei Tian, J. Zeretsky, A. S. Sefat, Ziqiang Wang, R. J. Birgeneau, and Stephen D. Wilson, “Effect of Uniaxial Strain on the Structural and Magnetic Phase Transitions in BaFe2As2”, Phys. Rev. Lett 108, 087001 (2012).
  • Athena S. Sefat, Karol Marty, Andrew D. Christianson, Bayrammurad Saparov, Michael A. McGuire, Mark D. Lumsden, Wei Tian, and Brian C. Sales, “Effect of molybdenum 4d hole substitution in BaFe2As2”, Phys. Rev. B 85, 024503 (2012).
  • X. Ke, J. Peng, D. J. Singh, Tao Hong, Wei Tian, C. R. Dela Cruz, and Z. Q. Mao, “Emergent electronic and magnetic state in Ca3Ru2O7 induced by Ti doping ”, Phys. Rev. B 84, 201102(R) (2011).
  • Miaoyin Wang, Chen Fang, Dao-Xin Yao, GuoTai Tan, Leland W. Harriger, Yu Song, Tucker Netherton, Chenglin Zhang, Meng Wang, Matthew B. Stone, Wei Tian, Jiangping Hu and Pengcheng Dai, “Spin waves and magnetic exchange interactions in insulating Rb0.89Fe1.58Se2”, Nat. Commun x:x doi: 10.1038/ncomms1573 (2011).
  • Meng Wang, Miaoyin Wang, G. N. Li, Q. Huang, C. H. Li, G. T. Tan, C. L. Zhang, Huibo Cao, Wei Tian, Yang Zhao, Y. C. Chen, X. Y. Lu, Bin Sheng, H. Q. Luo, S. L. Li, M. H. Fang, J. L. Zarestky, W. Ratcliff, M. D. Lumsden, J. W. Lynn, and Pengcheng Dai, “Antiferromagnetic order and superlattice structure in nonsuperconducting and superconducting Rby Fe1.6+xSe2”, Phys. Rev. B 84, 094504 (2011).
  • D. K. Pratt, M. G. Kim, A. Kreyssig, Y. B. Lee, G. S. Tucker, A. Thaler, W. Tian, J. L. Zarestky, S. L. Bud’ko, P. C. Canfield, B. N. Harmon, A. I. Goldman, and R. J. McQueeney, “Incommensurate Spin-Density Wave Order in Electron-Doped BaFe2As2 Superconductors”,Phys. Rev. Lett 106, 257001 (2011).
  • M. Hu¨cker, M. V. Zimmermann, Z. J. Xu, J. S. Wen, G. D. Gu, W. Tian, J. L. Zarestky, J. M. Tranquada, “Zn-Doping Dependence of Stripe Order in La1.905Ba0.095CuO4”, J Supercond Nov Magn 24, 1229-1233 (2011).
  • M. G. Kim, D. K. Pratt, G. E. Rustan, W. Tian, J. L. Zarestky, A. Thaler, S. L. Bud’ko, P. C. Canfield, R. J. McQueeney, A. Kreyssig, and A. I. Goldman, “Magnetic ordering and structural distortion in Ru-doped BaFe2As2 single crystals studied by neutron and x-ray diffraction”, Phys. Rev. B 83, 054514 (2011).
  • M. G. Kim, A. Kreyssig, A. Thaler, D. K. Pratt, W. Tian, J. L. Zarestky, M. A. Green, S. L. Bud’ko, P. C. Canfield, R. J. McQueeney and A. I. Goldman, “Antiferromagnetic ordering in the absence of a structural distortion in Ba(Fe1−xMnx)2As2”, Phys. Rev. B 82, 220503 (R) (2010).
  • X. Ke, P. P. Zhang, S. H. Baek, J. Zarestky, W. Tian, and C. B. Eom, “Magnetic structure of epitaxial multiferroic BiFeO3 films with engineered ferroelectric domains”, Phys. Rev. B 82, 134448 (2010).
  • W. Tian, J. Li, H. Li, J. W. Lynn, J. L. Zarestky and D. Vaknin, “Neutron Scattering Studies of LiCoPO4 & LiMnPO4”, Journal of Physics: Conference Series 251, 012005 (2010).
  • H.-F. Li, C. Broholm, D. Vaknin, R. M. Fernandes, D. L. Abernathy, M. B. Stone, D. K. Pratt, W. Tian, Y. Qiu, N. Ni, S. O. Diallo, J. L. Zarestky, S. L. Bud’ko, P. C. Canfield, R. J. McQueeney, “Anisotropic and quasipropagating spin excitations in superconducting Ba(Fe0.926Co0.074)2As2”, Phys. Rev. B 82, 140503 (R) (2010).
  • W. Tian, W. Ratcliff II, M. G. Kim, J.-Q. Yan, P. A. Kienzle, Q. Huang, B. Jensen, K. W. Dennis, R. W. McCallum, T. A. Lograsso, R. J. McQueeney, A. I. Goldman, J. W. Lynn, and A. Kreyssig, “Interplay of Fe and Nd magnetism in NdFeAsO single crystals”, Phys. Rev. B 82, 060514 (R) (2010).
  • H-F. Li, W. Tian, J-Q. Yan, J. L. Zarestky, R. W. McCallum, T. A. Lograsso, D. Vaknin, “Phase transitions and iron-ordered moment form factor in LaFeAsO”, Phys. Rev. B 82, 064409 (2010).
  • S. O. Diallo, D. K. Pratt, R. M. Fernandes, W. Tian, J. L. Zarestky, M. Lumsden, T. G. Perring, C. L. Broholm, N. Ni, S. L. Budko, P. C. Canfield, H.-F. Li, D. Vaknin, A. Kreyssig, A. I. Goldman, and R. J. McQueeney, “Paramagnetic spin correlations in CaFe2As2 single crystals”, Phys. Rev. B 81, 214407 (2010).
  • A. Kreyssig, M. G. Kim, S. Nandi, D. K. Pratt, W. Tian, J. L. Zarestky, N. Ni, A. Thaler, S. L. Bud’ko, P. C. Canfield, R. J. McQueeney, and A. I. Goldman, “Suppression of antiferromagnetic order and orthorhombic distortion in superconducting Ba(Fe0.961Rh0.039)2As2”, Phys. Rev. B 81, 134512 (2010).
  • Rafael M. Fernandes, Daniel K. Pratt, Wei Tian, Jerel Zarestky, Andreas Kreyssig, Shibabrata Nandi, Min Gyu Kim, Alex Thaler, Ni Ni, Paul C. Canfield, Robert J. McQueeney, J¨org Schmalian, and Alan I. Goldman, “Unconventional pairing in the iron arsenide superconduc- tors”, Phys. Rev. B 81, 140501(R) (2010).
  • D. K. Pratt, A. Kreyssig, S. Nandi, N. Ni, A. Thaler, M. D. Lumsden, W. Tian, J. L. Zarestky, S. L. Budko, P. C. Canfield, A. I. Goldman, and R. J. McQueeney, “Dispersion of the superconducting spin resonance in underdoped and antiferromagnetic BaFe2As2”, Phys. Rev. B 81, 140510 (R) (2010).
  • W. Tian, A. D. Christianson, J. L. Zarestky, S. Jia, S. L. Bud’ko, P. C. Canfield, P. M. B. Piccoli, and A. J. Schultz, “Magnetic order in TbCo2Zn20 and TbFe2Zn20”, Phys. Rev. B 81,144409 (2010).
  • Y. Lee, David Vaknin, Haifeng Li, Wei Tian, Jerel L. Zarestky, N. Ni, S. L. Bud’ko, P. C. Canfield, R. J. McQueeney, and B. N. Harmon,“Magnetic form factor of iron in SeFe2As2”, Phys. Rev. B 81, 060406 (R) (2010).
  • W. Tian, A. Kreyssig, J. L. Zarestky, L. Tan, S. Nandi, A. I. Goldman, T. A. Lograsso, D. L. Schlagel, K. A. Gschneidner, V. K. Pecharsky, and R. J. McQueeney, “Single-crystal neutron dif- fraction study of short-range magnetic correlations in Tb5Ge4”, Phys. Rev. B 80, 134422(2009).
  • 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, and T. A. Lograsso, “Flux growth at ambient pressure of millimeter-sized single crystals of LaFeAsO, LaFeAsO1−xFx, and LaFe1−xCoxAsO”, Appl. Phys. Lett 95, 222504 (2009).
  • Haifeng Li, W. Tian, J. L. Zarestky, A. Kreyssig, Ni Ni, S. L. Bud’ko, P. C. Canfield, A. I. Goldman, R. J. McQueeney, and D. Vaknin, “Magnetic and lattice coupling in single-crystal SrFe2As2: A neutron scattering study”, Phys. Rev. B 80, 054407(2009).
  • D. K. Pratt, W. Tian, A. Kreyssig, J. L. Zarestky, S. Nandi, N. Ni, S. L. Bud’ko, P. C. Canfield, A. I. Goldman, and R. J. McQueeney, “Coexistence of Competing Antiferromagnetic and Superconducting Phases in the Underdoped Ba(Fe0.953Co0.047)2As2 Compound Using X-ray and Neutron Scattering Techniques”, Phys. Rev. Lett. 103, 087001 (2009).
  • Jiying Li, W. Tian, Ying Chen, Jerel L. Zarestky, Jeffrey W. Lynn, and David Vaknin, “Antiferromagnetism in the magnetoelectric effect single crystal LiMnPO4”, Phys. Rev. B 79, 144410(2009).
  • W. Tian, Jiying Li, Jeffrey W. Lynn, Jerel L. Zarestky, and David Vaknin, “Spin dynamics in the magnetoelectric effect compound LiCoPO4”, Phys. Rev. B. 78, 184429 (2008).
  • M. Angst, R. P. Hermann, A. D. Christianson, M. D. Lumsden, C. Lee, M.-H. Whangbo, J.-W. Kim, P. J. Ryan, S. E. Nagler, W. Tian, R. Jin, B. C. Sales, and D. Mandrus, “Charge Order in LuFe2O4: Antiferroelectric Ground State and Coupling to Magnetism”, Phys. Rev. Lett. 101, 227601 (2008).
  • A. D. Christianson, M. D. Lumsden, M. Angst, Z. Yamani, W. Tian, R. Jin, E. A. Payzant, S. E. Nagler, B. C. Sales, and D. Mandrus, “Three-dimensional magnetic correlations in multiferroic LuFe2O4”, Phys. Rev. Lett. 100(10), 107601 (2008).
  • M. B. Stone, W. Tian, M. D. Lumsden, G. E. Granroth, D. Mandrus, J.-H. Chung, N. Harrison, and S. E. Nagler, “Quantum spin correlations in an organometallic alternating-sign chain”, Phys. Rev. Lett. 99(8), 087204 (2007).
  • M. B. Stone, W. Tian, T. P. Murphy, S. E. Nagler, and D. G. Mandrus, “Field dependent phase diagram of the quantum spin chain (CH3)2NH2CuCl3”, Low Temperature Physics: 24th International Conference on Low Temperature Physics - LT24. AIP Conference Proceedings, 850, 1015-1016 (2006).
  • W. Tian, M. B. Stone, D. G. Mandrus, B. C. Sales, R. Jin, D. T. Adroja, and S. E. Nagler, “Magnetic excitations in the orbitally degenerate triangular lattice LiVO2”, Physica B, 385-386, 50 (2006).
  • Matthew B. Stone, W. Tian, Garrett E. Granroth, Mark D. Lumsden, David G. Mandrus, and Stephen E. Nagler, “Spin-dynamics of the low-dimensional magnet (CH3)2NH2CuCl3”, Physica B 385-386, 438 (2006).
  • J.-H. Chung, Th. Proffen, S. Shamoto, A. M. Ghorayeb, L. Croguennec, W. Tian, B. C. Sales, R. Jin, D. Mandrus, and T. Egami, “Local structure of LiNiO2 studied by neutron diffraction”, Phys. Rev. B. 71, 064410 (2005).
  • W. Tian, M. F. Chisholm, P. G. Khalifah, R. Jin, B. C. Sales, S. E. Nagler, and D. Mandrus, “Single crystal growth and characterization of nearly stoichiometric LiVO2”, Materials Research Bulletin 39(9). 1319 (2004).

Awards, Honors and Memberships

  • Neutron Science Fellowship, University of Tennessee, 2004 to 2006​
  • Member of Neutron Scattering Society of America
  • Member of American Physical Society