Gina. L. Hoatson - Associate Professor of Physics

College of William & Mary

B.Sc., University of East Anglia , Norwich, U.K., 1977;
PhD, University of East Anglia , Norwich, U.K., 1980.

Academic Positions:

Postdoctoral Fellow - Iowa State University 1981-1982
Research Associate - University of British Columbia 1982-1986
Assistant Professor - College of William and Mary 1986-1992
Associate Professor - College of William and Mary 1992-present

Research Programs:

Experimental Condensed Matter Physics.
My research focuses on the development of Nuclear Magnetic Resonance (NMR) techniques for the quantitative determination of structure and dynamics in condensed matter systems. We are interested in how microscopic ordering and molecular motion correlate with the macroscopic physical properties of materials for crystalline solids, liquid crystal, inclusion compounds and polymers. We perform a wide range of multinuclear NMR experiments (1H, 2H, 13C, 14N), as a function of temperature and magnetic field strength. These include a variety of one- and two- dimensional spectra and measurements of relaxation times, on both static and spinning samples.

Interpreting the experimental NMR data frequently involves formulating theoretical descriptions of molecular motion, and developing computer simulation codes based on simple models. In addition, we run Molecular Dynamics simulations, and compare the results to those obtained from NMR experiments. This interdisciplinary research is highly collaborative and ensures that students develop a balanced combination of experimental, technical, computational, theoretical, and communication skills.
A more detailed description of the research is available here.

Recent Publications:

The creation, interconversion and observation of states of zero-, single- and double-quantum order in the NMR spectroscopy of spin-1 nuclei using non-selective r.f. pulses.
G. L. Hoatson and K. J. Packer
Molecular Physics 40, 1153 (1980).

Selective excitation of forbidden transitions in NMR spectroscopy; the spin-1 and AX spin systems.
G. L. Hoatson, K. J. Packer and K. M. Wright
Molecular Physics 46, 1311 (1982).

Interaction of cytochrome c with phosphatidylcholine-phosuphatidylserine bilayers: a deuterium magnetic resonance study.
P. F. Devaux, G. L. Hoatson, E. Favre, P. Fellmann, A. L. MacKay, B. Farren and M. Bloom
Biochemistry 25, 3804 (1986).

Deuteron Magnetic Resonance and Orientational Order in Binary Mixtures of Liquid Crystals.
G. S. Bates, P. A. Beckmann, E. E. Burnell, G. L. Hoatson and P. Palffy-Muhoray
Molecular Physics 57, 351 (1986).

Orientational Order of Rod- and Disk-like Solutes in the Nematic Liquid Crystal 5CB.
G. S. Bates , E. E. Burnell, G. L. Hoatson, P. Palffy-Muhoray, and A. Weaver
Chemical Physics Letters 134, 161 (1987).

Orientation Mechanisms for Small Solutes in the Nematic Liquid Crystal 5CB-d4.
A. J. van der Est, A. Weaver, J. C. T. Rendell, G. L. Hoatson, G. S. Bates and E. E. Burnell
Liquid Crystals 2, 633 (1987).

2H-NMR Studies of Flexibility and Orientational Order in Nematic Liquid Crystals.
G. L. Hoatson, A. L. Bailey, A. J. van der Est, G. S. Bates and E. E. Burnell
Liquid Crystals 3, 683 (1988).

Orientational Ordering in Nematic Liquid Crystals: 1CB-d11 Dissolved in 5CB-d6.
A. L. Bailey, G. S. Bates, E. E. Burnell and G. L. Hoatson
Liquid Crystals 5, 941 (1989).

2H-NMR Study of Orientational Order in Binary Mixtures: A Nematic Phase of Biaxial Molecules.
G. L. Hoatson, J. M. Goetz, P. Palffy-Muhoray, G. P. Crawford and J. W. Doane
Molecular Crystals Liquid Crystals 203, 45 (1991)

Experimental 2H-NMR Study of Orientational Order in a Nematic Phase of a Binary Mixture of Biaxial Molecules
G. L. Hoatson and J. M. Goetz
Journal of Chemical Physics 94, 3885 (1991).

Broadband Composite Excitation of Quadrupolar Order in 2H-NMR
G. L. Hoatson
Journal of Magnetic Resonance 94, 152 (1991).

Mean Field Theory of Binary Mixtures of Nematic Liquid Crystals Consisting of Biaxial Molecules
P. Palffy-Muhoray and G. L. Hoatson
Physics Review A 44, July (1991).

NOISY NMR: Novel Nonlinear Incoherent Spectroscopy Techniques for Solid State
Gina L. Hoatson and Bernhard Bluemich
Journal of Magnetic Resonance 94, 446 (1991).

Deuteron Spin Relaxation and Molecular Motion in a Binary Liquid Crystal Mixture
G. L. Hoatson, Tak Y. Tse and Robert L. Vold
Journal of Magnetic Resonance 98, 342 (1992).

Deuteron Relaxation and Anisotropic Reorientation of a Nematic Liquid Crystal
J. M. Goetz, G. L. Hoatson and R. L. Vold
Journal of Chemical Physics 97, 1306 (1992).

Saturation in Deuteron Hadamard NMR Spectroscopy of Solids
M. Greferath, B. Bluemich, W. M. Griffith and G. L. Hoatson
Journal of Magnetic Resonance, 102, 71 (1993).

NMR Imaging with Noise Excitation and Slice Selection,
B. Bluemich, J. Jansen, H. Nilgens, P. Bluemer and G. L. Hoatson,
Magnetic Resonance in Biology and Medicine, 1, 61 (1993).

Phase Diagrams of Binary Mixtures of Biaxial Nematogens
J. M. Goetz and G. L. Hoatson,
Liquid Crystals, 17, 31 (1994).

Relaxation, Selective Inversion and Two-dimensional Deuteron NMR Measurements of Slow Motion in a Single Crystal Urea/Alkane Inclusion Compound
K. A. Bell, G. L. Hoatson and R. L. Vold
Journal of Magnetic Resonance A 108, 238 (1994).

Individual Spectral Densities and Molecular Motion in Polycrystalline Hexamethyl Benzene-d18
G. L. Hoatson, R. L. Vold and T. Y. Tse
Journal of Chemical Physics 100, 4756 (1994).

A Comparative Survey of the Physical Techniques Used in Studies of Molecular Dynamics
G. L. Hoatson and Y. K. Levine
Chapter One in "The Molecular Dynamics of Liquid Crystals", edited by G. R. Luckhurst and C.A. Veracini, NATO ASI Series. 1994 Kluwer Academic Publishers.

2H-NMR Spectroscopy of Solids and Liquid Crystals
G. L. Hoatson and R. L. Vold, Invited Review
NMR-Basic Principles and Progress, ed. B. Bluemich, 32, Springer-Verlag 1994.

Linear Prediction with Singular Value Decomposition for Removing Artifacts in 2D VASCY Spectra
Y. K. Lee, R. L. Vold, G. L. Hoatson, Y-Y. Lin and A. Pines
Journal of Magnetic Resonance A 112, 112 (1995)

Deuteron Relaxation Rates in Liquid Crystal Samples: Experimental Methods
G. L. Hoatson and R. L. Vold
"Encyclopedia of Nuclear Magnetic Resonance", ed. D. M. Grant and R. K. Harris, Wiley & Son Scientific, Vol. 3, 1582 (1995).

Shaped Pulses for Selective Inversion in Solid State NMR Spectroscopy
M. J. Brown, G. L. Hoatson and R. L. Vold
Journal of Magnetic Resonance A 122, 165 (1996).

Selective Inversion Investigations at Slow Molecular Motion in Solid State Deuteron NMR Spectroscopy
M. J. Brown, R. L. Vold and G. L. Hoatson
Solid State Nuclear Magnetic Resonance 6, 167 (1996)

An Efficient Method for Calculating Powder Patterns
S. J. Varner, R. L. Vold and G. L. Hoatson
Journal of Magnetic Resonance A 123, 72 (1996).

Effects of Slow Motion on Deuteron Relaxation Time Anisotropy
R. L. Vold, G. L. Hoatson and T. Y. Tse
Chemical Physics Letters 263, 271 (1996).

Deuteron NMR Studies of Guest Motions in Alkanoic Acid Urea Inclusion Compounds
R. L. Vold, G. L. Hoatson and R. Subramanian
Journal of Chemical Physics 108, 7305 (1998).

Investigation of Multiaxial Molecular dynamics by 2H MAS NMR Spectroscopy
J. H. Kristensen, G. L. Hoatson, and R. L. Vold
Solid State NMR 13, 1 (1998).

Characterization of Polyimides by 13C and 1H Solid State NMR
S. J. Varner, R. L. Vold and G. L. Hoatson
Solid State NMR 12, 71 (1998).

Effects of Restricted Rotational Diffusion on 2H Magic Angle Spinning NMR Spectra
J. H. Kristensen, G. L. Hoatson, and R. L. Vold
Journal of Chemical Physics, accepted November 1998.

Contact points: 

Office:  (757) 221-3517  (Small Hall 213)
FAX:     (757) 221-3540
E-mail: gina@physics.wm.edu
Snail-Mail:   Dept. of Physics
	      Box 8795
              College of William and Mary
              Williamsburg, Virginia
              23187-8795    USA
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gina@physics.wm.edu