David Baxter

David Baxter

Professor, Physics

Chair, Physics

Education

  • Postdoctoral Positions, Caltech, McGill
  • Ph.D., Caltech, 1984
  • M.S., Caltech, 1982
  • B.S., University of Alberta, 1979

Research interests

condensed matter physics (experimental)

About David Baxter

My present research is focused in the area of neutron scattering, with an emphasis on the development of new neutron instrumentation and the application of that instrumentation to important problems in materials research. The instrumentation work is split between the development of novel neutron moderator designs and materials (in collaboration with scientists at several of the leading neutron facilities in the World), and a project devoted to instrumentation that exploits manipulation of the neutron spin to enhance resolution without sacrificing intensity and to provide novel probes of magnetic structure and dynamics in materials (in collaboration with Roger Pynn here at IU and Bill Hamilton at ORNL). Over the next several years, these techniques will be used to investigate the structure of fluids in confined geometries and hierarchical materials such as complex fluids, geological materials and components produced by Additive Manufacturing. The work on moderator designs and materials has also led to my participation in an international effort to measure the rate of neutron-antineutron oscillations using free neutrons.

Selected publications

High Temperature Hall Effect in Ga1-xMnxAs, D. Ruzmetov, J. Scherschligt, David V. Baxter, T. Wojtowicz, X. Liu, Y. Sasaki, J.K. Furdyna, K.M. Yu, and W. Walukiewicz, Phys. Rev. B 69, 155207: 1-6 (2004). https://journals.aps.org/prb/abstract/10.1103/PhysRevB.69.155207

"Self-assembled virus-like particles with magnetic cores," X. Huang. L. M. Bronstein, J. Retrum, C. Dufort, I. Tsvetkova, S. Aniagyei, B. Stein, G. Stucky, B. McKenna, N. Remmes, D. Baxter, C. C. Kao, B. Dragnea, Nano Letters. 7 (8), 2407-16 (2007). https://pubs.acs.org/doi/10.1021/nl071083l

"Neutronic Design and Measured Performance of the Low Energy Neutron Source Target Moderator Reflector System," C. M. Lavelle, David V. Baxter, M. A. Lone, H. Nann, J. M. Cameron, V. P. Derenchuk. H. Kaiser, M. B. Leuschner, W. Lozowski, H. O. Meyer, R. Pynn, N. Remmes, T. Rinckel, W. M. Snow, and P. E. Sokol, Nucl. Instr. Methods, A 587, 324-341 (2008). https://www.sciencedirect.com/science/article/pii/S0168900208000028?via%3Dihub

"Microscopic Model for the Neutron Dynamic Structure Factor of Solid Methane in phase II," Y. Shin, W. M. Snow, C-Y Liu, C. M. Lavelle, and David V. Baxter, Nucl. Instr. Meth. A 620 382-390 (2010), arXiv: at.phys-0705.0824. https://www.sciencedirect.com/science/article/pii/S0168900210006911?via%3Dihub

"Magnetic virus-like nanoparticles in N. Bethamiana plants: a new paradigm for environmental and agronomic biotechnological research, X. Huang, B. D. Stein, H. Cheng, A. Malyutin, I. B. Tsvetkova. David V. Baxter, N.B. Remmes, J Lubiez-Verchot, C. C. Kao, L. M. Bronstein, and B. Dragnea. ACS Nano. 5, 4037-45 (2011). https://pubs.acs.org/doi/10.1021/nn200629g

Superconducting magnetic Wollaston prism for neutron spin encoding, F. Li, S. R. Parnell, W. A. Hamilton, B. B. Maranville, T. Wang, R. Semerad, D. V. Baxter, J. T. Cremer, and R. Pynn, Rev. Sci. Instr., 85, 053303 (2014). https://aip.scitation.org/doi/10.1063/1.4875984

Enhancing Neutron Beam Production with a convoluted Moderator, E. B. Iverson, D. V. Baxter, G. Muhrer, S. Ansell, R. Dalgliesh, F. X. Gallmeier, H. Kaiser, and W. Lu, Nucl. Intr. Meth. A762, 31-41 (2014). https://www.sciencedirect.com/science/article/pii/S0168900214004525?via%3Dihub

Spin Echo Small Angle Scattering (SESANS) using a continuously pumped 3He neutron polarization analyser, S. R. Parnell, A. Washington, K. Li, Y. Yan, P. Stonaha, F. Li, T. Wang, A. Walsh, W. Chen, A. Parnell, P. Fairclough, D. V. Baxter, W. M. Snow, and R. Pynn, Rev. Sci. Instr. 86, 023902 (2015). https://aip.scitation.org/doi/10.1063/1.4909544

Experimental Search for Neutron-Antineutron Oscillations, D. G. Phillips et al., Phys. Rep., 612, 1-45 (2016). https://www.sciencedirect.com/science/article/pii/S0370157315004457?via%3Dihub

Compact Spherical Neutron Polarimeter using high-Tc YBCO films, T. Wang, S. R. Parnell, W. A. Hamilton, F. Li, A. Washington, D. V. Baxter, and R. Pynn, Rev. Sci. Instr., 87, 033901 (2016). https://aip.scitation.org/doi/10.1063/1.4943254

David Baxter

David Baxter

Professor, Physics

Chair, Physics

Education

  • Postdoctoral Positions, Caltech, McGill
  • Ph.D., Caltech, 1984
  • M.S., Caltech, 1982
  • B.S., University of Alberta, 1979

Research interests

condensed matter physics (experimental)

About David Baxter

My present research is focused in the area of neutron scattering, with an emphasis on the development of new neutron instrumentation and the application of that instrumentation to important problems in materials research. The instrumentation work is split between the development of novel neutron moderator designs and materials (in collaboration with scientists at several of the leading neutron facilities in the World), and a project devoted to instrumentation that exploits manipulation of the neutron spin to enhance resolution without sacrificing intensity and to provide novel probes of magnetic structure and dynamics in materials (in collaboration with Roger Pynn here at IU and Bill Hamilton at ORNL). Over the next several years, these techniques will be used to investigate the structure of fluids in confined geometries and hierarchical materials such as complex fluids, geological materials and components produced by Additive Manufacturing. The work on moderator designs and materials has also led to my participation in an international effort to measure the rate of neutron-antineutron oscillations using free neutrons.

Selected publications

High Temperature Hall Effect in Ga1-xMnxAs, D. Ruzmetov, J. Scherschligt, David V. Baxter, T. Wojtowicz, X. Liu, Y. Sasaki, J.K. Furdyna, K.M. Yu, and W. Walukiewicz, Phys. Rev. B 69, 155207: 1-6 (2004). https://journals.aps.org/prb/abstract/10.1103/PhysRevB.69.155207

"Self-assembled virus-like particles with magnetic cores," X. Huang. L. M. Bronstein, J. Retrum, C. Dufort, I. Tsvetkova, S. Aniagyei, B. Stein, G. Stucky, B. McKenna, N. Remmes, D. Baxter, C. C. Kao, B. Dragnea, Nano Letters. 7 (8), 2407-16 (2007). https://pubs.acs.org/doi/10.1021/nl071083l

"Neutronic Design and Measured Performance of the Low Energy Neutron Source Target Moderator Reflector System," C. M. Lavelle, David V. Baxter, M. A. Lone, H. Nann, J. M. Cameron, V. P. Derenchuk. H. Kaiser, M. B. Leuschner, W. Lozowski, H. O. Meyer, R. Pynn, N. Remmes, T. Rinckel, W. M. Snow, and P. E. Sokol, Nucl. Instr. Methods, A 587, 324-341 (2008). https://www.sciencedirect.com/science/article/pii/S0168900208000028?via%3Dihub

"Microscopic Model for the Neutron Dynamic Structure Factor of Solid Methane in phase II," Y. Shin, W. M. Snow, C-Y Liu, C. M. Lavelle, and David V. Baxter, Nucl. Instr. Meth. A 620 382-390 (2010), arXiv: at.phys-0705.0824. https://www.sciencedirect.com/science/article/pii/S0168900210006911?via%3Dihub

"Magnetic virus-like nanoparticles in N. Bethamiana plants: a new paradigm for environmental and agronomic biotechnological research, X. Huang, B. D. Stein, H. Cheng, A. Malyutin, I. B. Tsvetkova. David V. Baxter, N.B. Remmes, J Lubiez-Verchot, C. C. Kao, L. M. Bronstein, and B. Dragnea. ACS Nano. 5, 4037-45 (2011). https://pubs.acs.org/doi/10.1021/nn200629g

Superconducting magnetic Wollaston prism for neutron spin encoding, F. Li, S. R. Parnell, W. A. Hamilton, B. B. Maranville, T. Wang, R. Semerad, D. V. Baxter, J. T. Cremer, and R. Pynn, Rev. Sci. Instr., 85, 053303 (2014). https://aip.scitation.org/doi/10.1063/1.4875984

Enhancing Neutron Beam Production with a convoluted Moderator, E. B. Iverson, D. V. Baxter, G. Muhrer, S. Ansell, R. Dalgliesh, F. X. Gallmeier, H. Kaiser, and W. Lu, Nucl. Intr. Meth. A762, 31-41 (2014). https://www.sciencedirect.com/science/article/pii/S0168900214004525?via%3Dihub

Spin Echo Small Angle Scattering (SESANS) using a continuously pumped 3He neutron polarization analyser, S. R. Parnell, A. Washington, K. Li, Y. Yan, P. Stonaha, F. Li, T. Wang, A. Walsh, W. Chen, A. Parnell, P. Fairclough, D. V. Baxter, W. M. Snow, and R. Pynn, Rev. Sci. Instr. 86, 023902 (2015). https://aip.scitation.org/doi/10.1063/1.4909544

Experimental Search for Neutron-Antineutron Oscillations, D. G. Phillips et al., Phys. Rep., 612, 1-45 (2016). https://www.sciencedirect.com/science/article/pii/S0370157315004457?via%3Dihub

Compact Spherical Neutron Polarimeter using high-Tc YBCO films, T. Wang, S. R. Parnell, W. A. Hamilton, F. Li, A. Washington, D. V. Baxter, and R. Pynn, Rev. Sci. Instr., 87, 033901 (2016). https://aip.scitation.org/doi/10.1063/1.4943254