Patricia Thiel

Patricia A. Thiel is an American chemist and materials scientist who is a Distinguished Professor of Chemistry at Iowa State University. She is known for her research on atomic-scale structures and processes on solid surfaces.[1]

Early life and Education

Thiel grew up on a farm in southwest Minnesota, near her birthplace of Adrian, Minnesota. Her parents grew up in immigrant farm families and each had completed an eighth grade education. Thiel herself attended a private elementary school nearby her farm in Lismore, MN for grades 1-8 and public high school in Adrian, MN for grades 9-12. Support from the National Merit Scholarship Program enabled her to attend Macalester College in St. Paul, MN, where she was inspired by her freshman chemistry course and its instructor, Prof. Emil Smirkowski [2] to major in chemistry. She completed a BA in chemistry with a minor in mathematics in 1975. After working for a year at Control Data Corporation as an analytic chemist, she enrolled in the Chemistry Department at the California Institute of Technology, with financial support from a National Science Foundation Predoctoral Fellowship. She completed a PhD in chemistry in 1981 under the supervision of W. Henry Weinberg.[3][4][5]

Career

Thiel's first appointment after graduation was as an Alexander von Humboldt Fellow at the Ludwig Maximilian University of Munich, where she worked in the research group of Gerhard Ertl, who later went on to receive the 2007 Nobel Prize in Chemistry. In 1982 she joined the technical staff of Sandia National Laboratories in Livermore, CA and, after a brief stint as a Visiting Professor in the Physics department of the University of California, Berkeley, joined the Chemistry department faculty of Iowa State University in 1983, with a simultaneous appointment as staff scientist with the US Department of Energy's Ames Laboratory[5] She was subsequently promoted to the ranks of Associate Professor (1988), Full Professor (1991) and Distinguished Professor (2001). She received an additional appointment as Professor of Materials Science and Engineering in 2012. Throughout this time period she received outstanding teaching awards,[6] and held several administrative posts, including Program Director for Materials Chemistry (Ames Laboratory; 1988-2004), Chief Research officer (Ames Laboratory; 2008-2009) and Chair of the Iowa State Chemistry Department (1999-2002). Thiel is an associate editor of The Journal of Chemical Physics.[7] She attended the Nobel Prize ceremony on December 10, 2011, where Dan Shechtman received the 2011 Nobel Prize in chemistry for the discovery of quasicrystals.[8]

Research

Thiel's research has elucidated atomic-scale structures and processes on solid surfaces, in areas relevant to microelectronics, tribology, heterogeneous catalysis, and nanoscience. She has published over 300 research papers, which have been cited about 12,000 times, effective 2019. She is especially known for work in the following three areas.

Surfaces of quasicrystals

Thiel's research group pioneered studies of nucleation and growth of metal films on quasicrystal surfaces, demonstrating that local pseudomorphic growth, including starfish-shaped formations, can occur at very specific nucleation sites.[9][10] Focusing on metallic, aluminum-rich quasicrystals, Thiel and her collaborators extensively explored how quasicrystal atomic-scale surface structures were related to their unusual surface properties, including low friction, low adhesion, and good oxidation resistance.[11][12][13][14]

Interaction of water with metal surfaces

Thiel's Ph.D. research described evidence for hydrogen bonding between water molecules on a ruthenium surface. She continued her research on water as a faculty member at Iowa State University, and discovered that desorption kinetics of water can exhibit a measurable isotope effect.[15][16] She is credited with being the first to propose that bilayers of water near solid surfaces could possess a structure similar to the basal plane of Ice Ih.[17] She is the co-author, along with Theodore E. Madey, of a highly cited and comprehensive review article describing the interactions and properties of water near solid surfaces.[18][19]

Nucleation, growth, and coarsening of metal nanostructures on surfaces

Thiel's group is credited with discovering that large two-dimensional metal clusters actually diffuse on metal substrates,[20] and that this can be the dominant mechanism leading to coarsening (an evolution to larger sizes and fewer numbers) of these clusters.[21] She and James W. Evans are responsible for first describing an atomic-scale mechanism for metal film growth, which they dubbed ‘downward funneling’.[22] Because of this mechanism, they predicted an unusual variation in film roughness with temperature from theory, and eventually confirmed it experimentally using STM.[23] This is now accepted as an important mechanism that affects thin film morphology upon growth at low temperature.[24]

More recently, her group discovered a series of naturally-occurring metal-sulfur complexes with distinct stoichiometries, which may influence stability of larger metallic features by assisting surface metal transport and hence coarsening.[25][26] She and her collaborators also discovered that metallic nanoparticles can be grown as encapsulated clusters near the surface of a layered material, graphite, if specific growth conditions are met.[27][28] Applying a continuum elasticity model, they developed insight into the reasons for the low, flattened shapes (high aspect ratios) of these embedded particles, and a prediction that the shape of encapsulated metal islands should be universal (size-independent).[29]

Awards and honors

Personal life

Thiel was born on February 20, 1953 in Adrian, Minnesota. She married James Williams Evans, an Australian-born physicist, in 1988. They have two daughters, both engineers.[3]

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References
  1. "Patricia A Thiel". Iowa State University, Department of Chemistry. Retrieved 2019-12-02.
  2. Tim Harlow (2015-11-05). "Obituary:Emil Slowinski wrote the book on chemistry". Star Tribune. Retrieved 2019-12-02.
  3. "2014 Medard Welch Award - Interview". Retrieved 2019-12-02.
  4. "MSE Faculty and Staff - Patricia Ann Thiel". Retrieved 2019-12-02.
  5. "Biography: Patricia A. Thiel". AVS. Retrieved 2019-12-02.
  6. "Winter, Thiel receive Cassling Family Faculty Awards for outstanding teaching". Retrieved 2020-01-01.
  7. "The Journal of Chemical Physics - Editorial Board". The Journal of Chemical Physics. Retrieved 2019-12-02.
  8. "Pat Thiel talks about attending the Nobel Prize ceremony". Archived from the original on 2015-08-04. Retrieved 2019-12-02.
  9. Cai, T.; Ledieu, J.; McGrath, R.; Fournée, V.; Lograsso, T.A.; Ross, A; Thiel, P. A. (2003). "Pseudomorphic starfish: Nucleation of extrinsic metal atoms on a quasicrystalline substrate". Surf. Sci. 526 (1–2): 115–120. Bibcode:2003SurSc.526..115C. doi:10.1016/S0039-6028(02)02593-1.
  10. Sharma, H.R.; Shimoda, M.; Tsai, A.P. (2007). "Quasicrystal surfaces:structure and growth of atomic overlayers". Advances in Physics. 53 (3): 403–464. Bibcode:2007AdPhy..56..403S. doi:10.1080/00018730701269773.
  11. Park, J. Y.; Ogletree, D. F.; Salmeron, M.; Ribeiro, R. A.; Canfield, P. C.; Jenks, C. J.; Thiel, P. A. (2005). "High frictional anisotropy of periodic and aperiodic directions on a quasicrystal surface" (PDF). Science. 309 (5739): 1354–1356. Bibcode:2005Sci...309.1354P. doi:10.1126/science.1113239. PMID 16123295.
  12. Macia, Enrique (2006). "The role of aperiodic order in science and technology". Reports on Progress in Physics. 69 (2): 397–441. Bibcode:2006RPPh...69..397M. doi:10.1088/0034-4885/69/2/R03.
  13. McGrath, R.; Ledieu, J.; Cox, E.J.; Diehl, R.D. (2002). "Quasicrystal surfaces: structure and potential as templates". J. Phys.: Condens. Matter. 14 (4): R119–R144. doi:10.1088/0953-8984/14/4/201.
  14. Krim, J. (2012). "Friction and energy dissipation mechanisms in adsorbed molecules and molecularly thin films". Advances in Physics. 61 (3): 155–323. Bibcode:2012AdPhy..61..155K. doi:10.1080/00018732.2012.706401.
  15. Thiel, P. A.; Hoffmann, F. M.; Weinberg, W. H. (1981). "Monolayer and multilayer adsorption of water on Ru(001)". The Journal of Chemical Physics. 75 (11): 5556–5572. Bibcode:1981JChPh..75.5556T. doi:10.1063/1.441960. ISSN 0021-9606.
  16. Doering, Dale.L.; Madey, Theodore E. (2002). "The adsorption of water on clean and oxygen-dosed Ru(001)". Surface Science. 123 (2–3): 305–337. doi:10.1016/0039-6028(82)90331-4.
  17. Henderson, Michael A. (2002). "The interaction of water with solid surfaces: fundamental aspects revisted". Surface Science Reports. 46 (1–8): 1–308. Bibcode:2002SurSR..46....1H. doi:10.1016/S0167-5729(01)00020-6.
  18. Thiel, Patricia A.; Madey, Theodore E. (1987). "The interaction of water with solid surfaces: Fundamental aspects". Surface Science Reports. 7 (6–8): 211–385. Bibcode:1987SurSR...7..211T. doi:10.1016/0167-5729(87)90001-X. ISSN 0167-5729.
  19. Hodgson, A.; Haq, S. (2009). "Water adsorption and the wetting of metal surfaces". Surface Science Reports. 64 (9): 381–451. Bibcode:2009SurSR..64..381H. doi:10.1016/j.surfrep.2009.07.001.
  20. Wen, J. -M.; Chang, S. -L.; Burnett, J. W.; Evans, J. W.; Thiel, P. A. (1994). "Diffusion of Large Two-Dimensional Ag Clusters on Ag(100)". Physical Review Letters. 73 (19): 2591–2594. Bibcode:1994PhRvL..73.2591W. doi:10.1103/PhysRevLett.73.2591. ISSN 0031-9007. PMID 10057099.
  21. Wen, J.-M.; Evans, J. W.; Bartelt, M. C.; Burnett, J. W.; Thiel, P. A. (1996). "Coarsening Mechanisms in a Metal Film: From Cluster Diffusion to Vacancy Ripening". Physical Review Letters. 76 (4): 652–655. Bibcode:1996PhRvL..76..652W. doi:10.1103/PhysRevLett.76.652. ISSN 0031-9007. PMID 10061513.
  22. Evans, J. W.; Sanders, D. E.; Thiel, P. A.; DePristo, Andrew E. (1990). "Low-temperature epitaxial growth of thin metal films". Physical Review B. 41 (8): 5410–5413. Bibcode:1990PhRvB..41.5410E. doi:10.1103/PhysRevB.41.5410. ISSN 0163-1829. PMID 9994410.
  23. Stoldt, C. R.; Caspersen, K. J.; Bartelt, M. C.; Jenks, C. J.; Evans, J. W.; Thiel, P. A. (2000). "Using Temperature to Tune Film Roughness: Nonintuitive Behavior in a Simple System". Physical Review Letters. 85 (4): 800–803. Bibcode:2000PhRvL..85..800S. doi:10.1103/PhysRevLett.85.800. ISSN 0031-9007. PMID 10991402.
  24. Evans, J.W.; Thiel, P.A.; Bartelt, M.C. (2006). "Morphological evolution during epitaxial thin film growth: Formation of 2D islands and 3D mounds". Surface Science Reports. 61 (1–2): 1–128. Bibcode:2006SurSR..61....1E. doi:10.1016/j.surfrep.2005.08.004. ISSN 0167-5729.
  25. Thiel, Patricia A.; Shen, Mingmin; Liu, Da-Jiang; Evans, J. W. (2009). "Coarsening of Two-Dimensional Nanoclusters on Metal Surfaces". The Journal of Physical Chemistry C. 113 (13): 5047–5067. doi:10.1021/jp8063849. ISSN 1932-7447.
  26. Walen, Holly; Liu, Da-Jiang; Oh, Junepyo; Lim, Hyunseob; Evans, J. W.; Aikens, Christine M.; Kim, Yousoo; Thiel, P. A. (2015). "Cu2S3complex on Cu(111) as a candidate for mass transport enhancement". Physical Review B. 91 (4): 045426. Bibcode:2015PhRvB..91d5426W. doi:10.1103/PhysRevB.91.045426. ISSN 1098-0121.
  27. Zhou, Yinghui; Lii-Rosales, Ann; Kim, Minsung; Wallingford, Mark; Jing, Dapeng; Tringides, Michael C.; Wang, Cai-Zhuang; Thiel, Patricia A. (2018). "Defect-mediated, thermally-activated encapsulation of metals at the surface of graphite". Carbon. 127: 305–311. doi:10.1016/j.carbon.2017.10.103. ISSN 0008-6223.
  28. Lii-Rosales, Ann; Han, Yong; Evans, James W.; Jing, Dapeng; Zhou, Yinghui; Tringides, Michael C.; Kim, Minsung; Wang, Cai-Zhuang; Thiel, Patricia A. (2018). "Formation of Multilayer Cu Islands Embedded beneath the Surface of Graphite: Characterization and Fundamental Insights". The Journal of Physical Chemistry C. 122 (8): 4454–4469. doi:10.1021/acs.jpcc.7b12533. ISSN 1932-7447.
  29. Julien, Scott E.; Lii-Rosales, Ann; Wan, Kai-Tak; Han, Yong; Tringides, Michael C.; Evans, James W.; Thiel, Patricia A. (2019). "Squeezed nanocrystals: equilibrium configuration of metal clusters embedded beneath the surface of a layered material". Nanoscale. 11 (13): 6445–6452. doi:10.1039/C8NR10549A. ISSN 2040-3364. PMID 30888382.
  30. "Alfred P. Sloan Foundation - Past Fellows". Sloan Research Fellowships. Retrieved 2019-12-02.
  31. "Presidential Young Investigator Award/Reconstruction in Thin Films". National Science Foundation. Retrieved 2019-12-02.
  32. "Camille Dreyfus Teacher-Scholar Awards Program" (PDF). Retrieved 2019-12-02.
  33. Brian Oltman. "Professor awarded honorary degree by French University". iowastatedaily. Retrieved 2019-12-02.
  34. "2008 Iota Sigma Pi Honorary Member Award". Iota Sigma Pi. Retrieved 2019-12-02.
  35. "Ames Laboratory's Pat Thiel Receives Chemistry Honor". Ames Laboratory. Archived from the original on 2015-08-04. Retrieved 2019-12-02.
  36. "Arthur W. Adamson Award for Distinguished Service in the Advancement of Surface Chemistry". Chemical & Engineering News. Retrieved 2019-12-02.
  37. "Thiel Selected for ACS Adamson Award for Surface Chemistry". Ames Laboratory. Archived from the original on 2015-08-05. Retrieved 2019-12-02.
  38. "David Adler Lectureship Award in the Field of Materials Physics". American Physical Society. Retrieved 2019-12-02.
  39. "2010 David Adler Lectureship Award in the Field of Materials Physics Recipient". American Physical Society. Retrieved 2019-12-02.
  40. Dave Flanagan. "Materials Research Society Announces 2012 MRS Fellows". Advanced Science News. Retrieved 2020-03-16.
  41. "2012 MRS Fellows". Materials Research Society. Retrieved 2019-12-02.
  42. "Outstanding Referees Program". American Physical Society. Retrieved 2019-12-02.
  43. "Pat Thiel Named to Corbett Professorship". Ames Laboratory. Archived from the original on 2015-08-04. Retrieved 2019-12-02.
  44. "Patricia Thiel of Iowa State, Ames Laboratory elected to American Academy of Arts and Sciences". Iowa State University of Science and Technology. April 16, 2019. Retrieved 2019-12-02.
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