P. Pavone, S. Baroni, Solid State Commun, J. C. Noya, C. P. Herrero, ...
11. The epitaxial film of the highly enriched 76 Ge isotope (average mass 75.63) was grown on an intrinsic Ge(111) substrate in an ultrahigh vacuum system (base pressure 10 �11 mbar) by molecular...
Electrical Detection and Magnetic-Field Control of Spin States in Phosphorus-Doped Silicon (2009)
Morishita, H., Vlasenko, L. S., Tanaka, H., Semba, K., Sawano, K., Shiraki, Y., ...
Electron paramagnetic resonance of ensembles of phosphorus donors in silicon has been detected electrically with externally applied magnetic fields lower than 200 G. Because the spin Hamiltonian was...
Yang, A., Steger, M., Sekiguchi, T., Thewalt, M. L. W., Ladd, T. D., Itoh, K. M., ...
We demonstrate a method which can hyperpolarize both the electron and nuclear spins of 31P donors in Si at low field, where both would be essentially unpolarized in equilibrium. It is based on the...
Sailer, J., Lang, V., Abstreiter, G., Tsuchiya, G., Itoh, K. M., Ager III, J. W., ...
We report on the realization and top-gating of a two-dimensional electron system in a nuclear spin free environment using 28Si and 70Ge source material in molecular beam epitaxy. Electron spin...
Mukuda, H., Nishide, S., Harada, A., Iwasaki, K., Yogi, M., Yashima, M., ...
We report on novel superconducting characteristics of the heavy fermion (HF) superconductor CePt3Si without inversion symmetry through 195Pt-NMR study on a single crystal with T_c= 0.46 K that is...
Harada, A., Mukuda, H., Kitaoka, Y., Thamizhavel, A., Okuda, Y., Settai, R., ...
We report a $^{73}$Ge nuclear-quadrupole-resonance (NQR) study on novel evolution of unconventional superconductivity in antiferromagnetic (AFM) CeNiGe$_3$. The measurements of the $^{73}$Ge-NQR...
Harada, A., Kawasaki, S., Mukuda, H., Kitaoka, Y., Haga, Y., Yamamoto, E., ...
We report that a novel type of superconducting order parameter has been realized in the ferromagnetic states in UGe$_2$ via $^{73}$Ge nuclear-quadrupole-resonance (NQR) experiments performed under...
Evidence for unconventional superconducting fluctuations in heavy-fermion compound CeNi2Ge2 (2006)
Kawasaki, S., Sada, T., Miyoshi, T., Kotegawa, H., Mukuda, H., Kitaoka, Y., ...
We present evidence for unconventional superconducting fluctuations in a heavy-fermion compound CeNi$_2$Ge$_2$. The temperature dependence of the $^{73}$Ge nuclear-spin-lattice-relaxation rate...
Isotope dependence of the lifetime of the 1136 cm-1 vibration of oxygen in silicon (2006)
Kohli, K.K., Davies, G., Vinh, N.Q., West, D., Estreicher, S.K., Gregorkiewicz, T., ...
Optical detection and ionization of donors in specific electronic and nuclear spin states (2006)
Yang, A., Steger, M., Karaiskaj, D., Thewalt, M. L. W., Cardona, M., Itoh, K. M., ...
We resolve the remarkably sharp bound exciton transitions of highly enriched Si-28 using a single-frequency laser and photoluminescence excitation spectroscopy, as well as photocurrent spectroscopy....
Yoshida, S., Sekiguchi, T., Itoh, K. M.
We demonstrate that annealing of a vicinal Si(111) surface at about 800 C with a direct current in the direction that ascends the kinks enhances the formation of atomically straight step edges over...
Sekiguchi, T., Yoshida, S., Itoh, K. M.
Silicon self-assembly at step edges in the initial stage of homoepitaxial growth on a vicinal Si(111) surface is studied by scanning tunneling microscopy (STM). The resulting atomic structures change...
Kotegawa, H., Harada, A., Kawasaki, S., Kawasaki, Y., Kitaoka, Y., Haga, Y., ...
We report on the itinerant ferromagnetic superconductor UGe_2 through ^73Ge-NQR measurements under pressure (P). The P dependence of the NQR spectrum signals a first-order transition from the...
Fast Quantum Modular Exponentiation (2004)
We present a detailed analysis of the impact on modular exponentiation of architectural features and possible concurrent gate execution. Various arithmetic algorithms are evaluated for execution...
Coherence Time of a Solid-State Nuclear Qubit (2003)
Ladd, T. D., Maryenko, D., Abe, E., Itoh, K. M., Yamamoto, Y.
We report NMR experiments using high-power, RF decoupling techniques to show that a 29-Si nuclear spin qubit in a solid silicon crystal at room temperature can preserve quantum phase for 10^9...
Effect of the Si/SiO2 interface on self-diffusion of Si in semiconductor-grade SiO2 (2003)
Fukatsu, S., Takahashi, T., Itoh, K.M., Uematsu, M., Fujiwara, A., Kageshima, H., ...
An all silicon quantum computer (2001)
Ladd, T. D., Goldman, J. R., Yamaguchi, F., Yamamoto, Y., Abe, E., Itoh, K. M.
A solid-state implementation of a quantum computer composed entirely of silicon is proposed. Qubits are Si-29 nuclear spins arranged as chains in a Si-28 (spin-0) matrix with Larmor frequencies...