Surprising lack of magnetism in the conductance channels of Pt atomic chains

Posted by klaurent Delft

Kavli Affiliate: Roel H. M. Smit | Summary:Pt is known to show spontaneous formation of chains of metal atoms upon breaking a metallic contact. From model calculations these have been predicted to be spin polarized, which is reasonable in view of the Stoner enhanced susceptibility of bulk Pt and the increased density of states due […]


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Circle-valued Morse theory for complex hyperplane arrangements

Posted by klaurent Tokyo

Kavli Affiliate: Toshitake Kohno | Summary:Let A be an essential complex hyperplane arrangement in an n-dimensional complex vector space V. Let H denote the union of the hyperplanes, and M denote the complement to H in V. We develop the real-valued and circle-valued Morse theory for M and prove, in particular, that M has the […]


Continue.. Circle-valued Morse theory for complex hyperplane arrangements