Contact information
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Christopher Bell Campus Office (mailing): |
SLAC Office: Email: cbell1[at]stanford.edu cbell[at]slac.stanford.edu |
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Research Interests
My
research interests range from the control
of the physics of low dimensional transport: using field effect gating and novel
proximity effects to study effects such as superconductivity, quantum
oscillations and magnetism, to the materials science and chemistry of
interfaces and surfaces. Specific materials of recent interest include: SrTiO3–based
heterostructures using δ-doping or heterostructured
with LaAlO3 or LaTiO3; KTaO3; (La,Sr)MnO3; TiO2;
SrRuO3.
Selected Publications
[1] B. Kalisky, J. A. Bert, B. B. Klopfer, C. Bell, H. K. Sato, M. Hosoda, Y. Hikita, H. Y. Hwang and K. A. Moler, Critical thickness for ferromagnetism in LaAlO3/SrTiO3 heterostructures, Nature Commun. 3, 922 (2012).
[2] Y. Xie, Y. Hikita, C. Bell, and H. Y. Hwang, Control of electronic conduction at an oxide heterointerface using surface polar adsorbates, Nature Commun. 2, 494 (2011).
[3] J. A. Bert, B. Kalisky, C. Bell, M. Kim, Y. Hikita, H. Y. Hwang and K. A. Moler, Direct imaging of the coexistence of ferromagnetism and superconductivity at the LaAlO3/SrTiO3 interface, Nature Phys. 7, 767 (2011).
[4] M. Kim, Y. Kozuka, C. Bell, Y. Hikita, and H. Y. Hwang, Intrinsic Spin-Orbit Coupling in superconducting δ -doped SrTiO3 Heterostructures, Phys. Rev. B 86, 085121 (2012).
[5] M. Kim, C. Bell, Y. Kozuka, M. Kurita, Y. Hikita, and H. Y. Hwang, Fermi surface and superconductivity in low-density high-mobility δ-doped SrTiO3, Phys. Rev. Lett. 107, 106801 (2011).
[6] Y. Kozuka, M. Kim, C. Bell, B. G. Kim, Y. Hikita, and H. Y. Hwang, Two-dimensional normal state quantum oscillations in a superconducting heterostructure, Nature 462, 487 (2009).
[7] C. Bell, S. Harashima, Y. Kozuka, M. Kim, B. G. Kim, Y. Hikita, and H. Y. Hwang, Dominant mobility modulation by the electric field effect at the LaAlO3/SrTiO3 interface, Phys. Rev. Lett. 103, 226802 (2009).
[8] C. Bell, S. Milikisyants, M. Huber and J. Aarts,
Spin dynamics in a superconductor /
ferromagnet proximity system, Phys. Rev. Lett. 100, 047002 (2008).
[9] J. W. A.
Robinson, S. Piano, G. Burnell, C. Bell, and M. G. Blamire, Critical
Current Oscillations in Strong Ferromagnetic π-Junctions, Phys. Rev. Lett. 97, 177003 (2006)
[10] C. Bell,
R. Loloee, G. Burnell and
M. G. Blamire, Characteristics
of strong ferromagnetic Josephson junctions with epitaxial barriers, Phys.
Rev. B 71, 180501(R) (2005).
[11] C. Bell, G. Burnell, C. W. Leung, E. J. Tarte, D.-J. Kang and M. G. Blamire, Controllable Josephson current through a pseudo-spin-valve structure, Appl. Phys. Lett. 84, 1153 (2004).
For a more complete list see: www.researcherid.com/rid/B-8785-2009
Recent Conference Presentations
[1] MAMA-Hybrids -
Multifunctional Hybrids and Organics, Ischia, Napoli, Italy, October 2012
(invited).
[2] CMD-24,
ECOSS-29, ECSCD-11, CMMP-12, joint meeting, Edinburgh, UK, September 2012
(invited, session chair).
[3] American
Physical Society Meeting, Boston, Massachusetts, USA, March 2012 (invited).
[4] Villa Conference
on Complex Oxide Heterostructures, Santorini, Greece, June 2010 (invited).
[5] American
Physical Society Meeting, Portland, Oregon, USA, March 2010 (session chair).
[6] Physics and
Chemistry of Surfaces and Interfaces (PCSI-37), Santa Fe, New Mexico, USA,
January 2010 (invited).
Other
My favourite
pastime is making pottery,
which I enjoy both at Higher Fire
Studios in San José, and the Stanford Ceramics Club.
I enjoy cycling, tennis, cooking, chess and bird watching, with varying degrees
of skill at each. In my previous life in Tokyo I was also developing the art of
ikebanana,
the fruitier version of Japanese flower arranging.
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