|
Research Interests
Research in my group uses
a combination of first-principles and semi-empirical techniques to study
the fundamental physics of novel materials which have potential technological
importance. Projects combine development of new theoretical methods, application
of the methods to existing materials, then design of new materials based
on the insights gained from the research. Specific systems of interest
include "multiferroic" materials (which are simultaneously ferromagnetic,
ferroelectric and ferroelastic), and magnetic semiconductor nanostructures.
Recent Publications
"Spin-orbit coupling
in the ab initio pseudopotential framework", G.J. Theurich and N.A.
Hill, Phys. Rev. B 64, 073106 (2001).
"Influence of the local
As antisite distribution on ferromagnetism in (Ga, Mn)As", S. Sanvito
and N.A. Hill, Appl. Phys. Lett. 78, 3493 (2001).
"First principles study
of the origin and nature of ferromagnetism in (Ga,Mn)As", S. Sanvito,
P. Ordejon, N.A. Hill, Phys. Rev. B 63, 165206 (2001).
"Making the Fortran to
C transition; just how painful is it really?", G. Theurich, B. Anson,
N.A. Hill and A.J. Hill, Computing in Science and Engineering, p.22,
Jan/Feb 2001.
"Ground state of half-metallic
zincblende MnAs", S. Sanvito and N.A. Hill, Phys. Rev. B 62,
15553 (2000).
"Magnetic stress as a
driving force of structural distortions: The case of CrN", A. Filippetti
and N.A. Hill, Phys. Rev. Lett. 85, 5166 (2000).
"First principles study
of strain/electronic interplay in ZnO; Stress and temperature dependence
of the piezoelectric constants", N.A. Hill and U.V. Waghmare, Phys.
Rev. B 62, 8802 (2000).
"Why are there so few
magnetic ferroelectrics?", N.A. Hill, J. Phys. Chem. B.,
104, 6694-6709 (2000).
"Optical properties of
Si-Ge semiconductor nano-onions", N.A. Hill, S. Pokrant and A.J. Hill,
J. Phys. Chem. B 103, 3156 (1999).
"First principles study
of ferromagnetism and ferroelectricity in bismuth manganite", N.A.
Hill and K.M. Rabe, Phys. Rev. B 59, 8759 (1999).
|
