We use the single particle excitation energies and the completeness rules of the 3state anti-ferromagnetic Potts chain, which have been obtained from Bethe’s equation, to compute the modular invariant partition function. This provides a fermionic construction for the branching functions of the D4 representation of Z4 parafermions which complements the previous bosonic constructions. It is found...

The one-dimensional Kondo lattice model is investigated by using bosonization techniques and conformal field theory. In the half-filled band, the charge and spin gaps open for the anti-ferromagnetic Kondo coupling. Away from half-filling, the paramagnetic metallic state is characterized by the fixed point of TomonagaLuttinger liquid with the large Fermi surface in accordance with known results....

A series of trilayers of sputtered Fe/Si/Fe were grown to study the interface characteristics and magnetic coupling between ferromagnetic Fe layers (30 Å thick) for Si spacer thickness (tSi) ranging from 15 Å to 40 Å. Grazing incidence x-ray diffraction, AFM, resistivity and x-ray photoelectron spectroscopy (XPS) measurements show substantial intermixing between the layers during deposition whi...

Hardcore and Ising models are two most important families of two state spin systems in statistic physics. Partition function of spin systems is the center concept in statistic physics which connects microscopic particles and their interactions with their macroscopic and statistical properties of materials such as energy, entropy, ferromagnetism, etc. If each local interaction of the system invo...

This work gives insights into processing and characterisation of bulk nanocrystalline FeCr materials. The investigated alloys, consisting 30, 50 70 at.% ferromagnetic Fe remaining anti-ferromagnetic Cr, are processed by arc melting subsequent severe plastic deformation high pressure torsion. physical similarities between elemental Cr in combination with the structure as-deformed necessitates ad...