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- Yi Zhao, Gennady Mil'nikov, Hiroki Nakamura
- The Journal of chemical physics
- 2004

We consider a problem of calculating both thermal and microcanonical rate constants for nonadiabatic chemical reactions. Instead of using the conventional transition state theory, we use a generalized seam surface and introduce a concept of a coordinate dependent effective nonadiabatic transition probability based on the Zhu-Nakamura theory which can treat… (More)

- Hiroshi Kohguchi, Toshinori Suzuki, +4 authors Hiroki Nakamura
- The journal of physical chemistry. A
- 2008

The dynamics of the O(1D) + HCl --> OH + Cl(2P) reaction are investigated by a crossed molecular beam ion-imaging method and quasiclassical trajectory calculations on the three ab initio potential energy surfaces, the ground 1(1)A' and two excited (1(1)A'' and 2(1)A') states. The scattering experiment was carried out at collision energies of 4.2, 4.5, and… (More)

- Gennady Mil'nikov, Nobuya Mori, Yoshinari Kamakura, Tatsuya Ezaki
- Physical review letters
- 2009

Self-consistent calculations of quantum transport through a single donor atom in the semiconductor nanowire show intrinsic bistability of the nonequilibrium electronic state. We attribute this effect to two distinct ion screening mechanisms.

- Masashi Uematsu, Kohei M. Itoh, Gennady Mil'nikov, Hideki Minari, Nobuya Mori
- Nanoscale research letters
- 2012

We have theoretically investigated the effects of random discrete distribution of implanted and annealed arsenic (As) atoms on device characteristics of silicon nanowire (Si NW) transistors. Kinetic Monte Carlo simulation is used for generating realistic random distribution of active As atoms in Si NWs. The active As distributions obtained through the… (More)

- Gennady Mil'nikov, Nobuya Mori, Yoshinari Kamakura
- Mathematical and Computer Modelling
- 2013

- Gennady Mil'nikov, Nobuya Mori, Yoshinari Kamakura, Tatsuya Ezaki
- 2008 International Conference on Simulation of…
- 2008

Recently, we have proposed a new method for device simulations which allows for splitting the device area into a set of independent elements and computing all the physical observables in the form of local spectral representation. The shape of the device elements and their internal coordinate representation are arbitrary which offers a natural way to treat… (More)

- Gennady Mil'nikov, Nobuya Mori
- 2014 International Conference on Simulation of…
- 2014

The paper presents a method for quantum transport simulations in nanowire (NW) MOSFETs with inelastic scattering processes incorporated. An atomistic tight-binding Hamiltonian with realistic electron-phonon interaction is transformed into an equivalent low-dimensional transport model which can be easily used in full-scaled NEGF simulations. The utility of… (More)

- Gennady Mil'nikov, Hiroki Nakamura
- The Journal of chemical physics
- 2005

We develop the instanton theory for calculating the tunneling splitting of excited states. For the case of low vibrational quantum states we derive a canonically invariant formula which is applicable to a multidimensional system of arbitrary Riemannian metric. The effect of multidimensionality in relation to the vibrational excitation is explained in terms… (More)

- Gennady Mil'nikov, Kiyoshi Yagi, Tetsuya Taketsugu, Hiroki Nakamura, Kimihiko Hirao
- The Journal of chemical physics
- 2004

A practical and accurate semiclassical method for calculating the tunneling splitting of the ground state in polyatomic molecules is presented based on a recent version of the instanton theory [J. Chem. Phys. 115, 6881 (2001)]. The method uses ab initio quantum chemical data for the potential energy surface without any concomitant extrapolation and requires… (More)

- Gennady Mil'nikov, Nobuya Mori, Yoshinari Kamakura, Hideki Minari
- 2010 14th International Workshop on Computational…
- 2010

We construct a low-dimensional representation of a tight-binding model to be used in the self-consistent device simulation. The method combines the original atomic orbitals of the nanowire device into a small basis set which reproduces the band structure and all the relevant electronic states. The basis representation greatly reduces the numerical burden… (More)