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- Nigel Alexander Morrison, Jian Cheng Qi, +5 authors John A. Eisman
- Nature
- 1994

BONE density achieved in early adulthood is the major determinant of risk of osteoporotic fracture. Up to 60% of women1,2 suffer osteoporotic fractures as a result of low bone density2, which is… (More)

We determine the electronic structure of a graphene sheet on top of a lattice-matched hexagonal boron nitride (h-BN) substrate using ab initio density functional calculations. The most stable… (More)

The electron transport properties of hybrid ferromagnetic|normal metal structures such as multilayers and spin valves depend on the relative orientation of the magnetization direction of the… (More)

- Pál Erdös, P. H. J. Kelly
- 1963

In the first book on graph theory ever written, König proved the following result . If G is any graph, and d is the maximum degree of the points of G, then it is possible to add new points and to… (More)

We study how the Fermi energy of a graphene monolayer separated from a conducting substrate by a dielectric spacer depends on the properties of the substrate and on an applied voltage. An analytical… (More)

The board of directors is considered pivotal in a company's corporate governance architecture. However, the board is just one of several governance mechanisms. External shareholders may be more… (More)

Using first-principles density-functional-theory calculations, we find a strong position and thickness dependence of the formation energy of oxygen vacancies in LaAlO3∣SrTiO3 (LAO∣STO) multilayers… (More)

We model and evaluate the Peltier and Seebeck effects in magnetic multilayer nanostructures by a finite-element theory of thermoelectric properties. We present analytical expressions for the… (More)