PhD 2nd year student
476 Lomita Mall, McCullough Building D447 (Room410)
Stanford University, Stanford, CA 94305-4045
I am interested in novel physical properties of low-dimensional electron systems in SrTiO3-based hererostructures. Specifically I have been working mostly with the LaAlO3/SrTiO3 heterointerface, which shows a two-dimensional electronic conduction although the constituent materials are both insulators. One of my most recent (ongoing) research topics is growth optimization to enhance the electron mobility at the interface, which enables the observation of quantum transport at low temperature and gives us much more information about the electronic sturucture at the interface than previously obtained.
March 2012 - present: Visiting Scientist, Stanford Institute for Materials and Energy Science, SLAC National Accelerator Laboratory (with Prof. H. Y. Hwang)
April 2011 - present: Global COE Research Assistant, Department of Advanced Materials Science, University of Tokyo, Japan (with Prof. H. Okamoto)
April 2011 - present: PhD, Department of Advanced Materials Science, University of Tokyo, Japan (Supervisor: Prof. H. Okamoto)
April 2009 - March 2011: MA, Department of Advanced Materials Science, University of Tokyo, Japan
Thesis: Growth Control of the Electronic Properties of the LaAlO3/SrTiO3 Heterointerface (UT Repository Link)
April 2005 - March 2009: BA, Department of Applied Physics, University of Tokyo, Japan
Thesis: Fabrication and Photoluminescence of LaAlO3/SrTiO3 Heterostructures
H. K. Sato, J. A. Mundy, T. Higuchi, Y. Hikita, C. Bell, D. A. Muller, and H. Y. Hwang, Nanometer-scale epitaxial strain release in perovskite heterostructures using ``SrAlOx'' sliding buffer layers, Applied Physics Letters 98, 171901 (2011).
Julie A. Bert, Katja C. Nowack, Beena Kalisky, Hilary Noad, John R. Kirtley, Chris Bell, Hiroki K. Sato, Masayuki Hosoda, Yasayuki Hikita, Harold Y. Hwang, and Kathryn A. Moler, Gate-tuned superfluid density at the superconducting LaAlO3/SrTiO3 interface, Physical Review B 86, 060503(R) (2012).
Beena Kalisky, Julie A. Bert, Christopher Bell, Yanwu Xie, Hiroki K. Sato, Masayuki Hosoda, Yasuyuki Hikita, Harold Y. Hwang, and Kathryn A. Moler, Scanning Probe Manipulation of Magnetism at the LaAlO3/SrTiO3 Heterointerface, Nano Letters 12, 4055 (2012).
Beena Kalisky, Julie A. Bert, Brannon B. Klopfer, Christopher Bell, Hiroki K. Sato, Masayuki Hosoda, Yasuyuki Hikita, Harold Y. Hwang, and Kathryn A. Moler, Critical thickness for ferromagnetism in LaAlO3/SrTiO3 heterostructures, Nature Communications 3, 922 (2012).
Only presentations as the first author (speaker) are listed.
Hiroki K. Sato, Christopher Bell, Yasuyuki Hikita, and Harold Y. Hwang, Stoichiometry Control of the Electronic Properties of the LaAlO3/SrTiO3 Heterointerface, 2012 Materials Research Society Fall Meeting AA6.06, Boston MA, USA, November 2012.
Hiroki Sato, Takuya Higuchi, Yasuyuki Hikita, and Harold Y. Hwang, Fabrication of Bulk-like Single Crystal LaAlO3 Thin Films on SrTiO3 (001) Using ``SrAlOx'' Buffer Layers, 2010 Materials Research Society Spring Meeting N12.3, San Francisco CA, USA, April 2010.
Hiroki Sato, Christopher Bell, Yasuyuki Hikita, and Harold Y. Hwang, Tuning the Electronic Properties of the LaAlO3/SrTiO3 Interface by Growth Conditions, JSAP 58th Spring Meeting 26a-BF-2, Kanagawa, Japan, March 2011.
Hiroki Sato, Takuya Higuchi, Christopher Bell, Yasuyuki Hikita, and Harold Y. Hwang, Cation Stoichiometry of LaAlO3 Thin Films Grown by Pulsed Laser Deposition, JSAP 57th Spring Meeting 18a-TQ-5, Kanagawa, Japan, March 2010.
Hiroki Sato, Takuya Higuchi, Yasuyuki Hikita, and Harold Y. Hwang, Fabrication of Bulk-like and Epitaxial LaAlO3 Thin Films Using ``SrAlOx'' Buffer Layers, JSAP 70th Autumn Meeting 10p-H-6, Toyama, Japan, September 2009.
|| I went Los Alamos to characterize my samples at National High Magnetic Field Laboratory, Pulsed Field Facility. These are statues of Dr. Oppenheimer and Gen. Groves, who were leaders of the Manhattan Project, the research program that produced the first atomic bomb during World War II. This town really made me, a Japanese, think a lot... Good or bad I do not know. (December 2012)
|| I am pretty poor at taking pictures, but I feel this one is exceptionally good. (I know you disagree! lol) This was taken from the Harvard Bridge, Boston, where I went to attend the MRS Fall Meeting. (November 2012)
|| My recent hobby is cycling. From Golden Gate Bridge. (September 2012)
|| One of my best memories when I was an undergraduate. Making juggling performances was a big fun! (November 2007)