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There are a number of very puzzling meteoritic events including (a) The Tunguska event. It is the only known example of a low altitude atmospheric explosion. It is also the largest recorded event. Remarkably no fragments or significant chemical traces have ever been recovered. (b) Anomalous low altitude fireballs which (in some cases) have been observed to… (More)

We grew graphene epitaxially on 6H-SiC(0001) substrate by the simulated annealing method. The mechanisms that govern the growth process were investigated by testing two empirical potentials, namely, the widely used Tersoff potential [J. Tersoff, Phys. Rev. B 39, 5566 (1989)] and its more refined version published years later by Erhart and Albe [Phys. Rev. B… (More)

We examine one simple mechanism which leads to approximate maximal νμ−ντ oscillations in the standard see-saw model. In particular, we show that this scheme could be implemented in the Exact Parity Model (also known as the mirror matter model). Within this framework the solar neutrino problem is solved by maximal νe → ν ′ e oscillations (with ν ′ e is the… (More)

- T. L. Yoon
- 2001

There is a unique SU(4) ⊗ SU(2)L ⊗ SU(2)R gauge model which allows quarks and leptons to be unified at the TeV scale. It is already known that the neutrino masses arise radiatively in the model and are naturally light. We study the atmospheric, solar and LSND neutrino anomalies within the framework of this model.

- Yee Hui Robin Chang, Tiem Leong Yoon, Thong Leng Lim, Moi Hua Tuh, Eong Sheng Goh
- Physical chemistry chemical physics : PCCP
- 2017

Theoretical investigations of the thermoelectric and piezoelectric characteristics in the AlxIn1-xN system have been carried out based on a first principles approach in combination with the semi-classical Boltzmann transport concept and density functional perturbation theory. Based on our previous work, herein, the study specimens Al5InN6, Al6In2N8,… (More)

- Keat Hoe Yeoh, Tiem Leong Yoon, Duu Sheng Ong, Thong Leng Lim, Yusuf Zuntu Abdullahi
- Physical chemistry chemical physics : PCCP
- 2017

Using first-principles calculations, we carry out systematic studies on the electronic, magnetic and structural properties of halogenated β-phase antimonene. We consider two different levels of halogen adatom coverage i.e. Θ = 1/8 and Θ = 1/18. It is found that F, Cl and Br adatoms act as acceptors whereas the I adatom acts as a donor. For a high coverage… (More)

- Tsung-Wen Yen, Thong Leng Lim, Tiem Leong Yoon, S. K. Lai
- Computer Physics Communications
- 2017

- Wei Chun Ng, Thong Leng Lim, Tiem Leong Yoon
- Journal of Chemical Information and Modeling
- 2017

Melting dynamics of hafnium clusters are investigated using a novel approach based on the idea of the chemical similarity index. Ground state configurations of small hafnium clusters are first derived using Basin-Hopping and Genetic Algorithm in the parallel tempering mode, employing the COMB potential in the energy calculator. These assumed ground state… (More)

- T. L. Yoon
- 2002

There is a unique SU(4)⊗ SU(2)L ⊗ SU(2)R gauge model which allows quarks and leptons to be unified at the TeV scale – thereby making the model testable and avoiding the gauge hierarchy problem. In its minimal form, this model could quite naturally accommodate simultaneous solutions to the solar and LSND neutrino oscillation data. The atmospheric neutrino… (More)

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