ROMANIA HAS DISPLAYED GREAT MANOEUVERABILITY IN THE INTERNATIONAL ECONOMIC AND POLITICAL FIELDS. IT HAS BEEN FACILITATD BY THE GROWING SCHISM WITHIN THE INTERNATIONAL MOVEMENT AND BY THE COUNTRY'S INTERNAL STRENGTH: ABSENCE OF ANY OPPSITION TO THE PARTY LEADERSHIP AND A SECURE HOLD OVER THE PEOPLE. IT ADOPTED A NEUTRAL POSTURE IN THE SINO-SOVIET CONFLICT AND DERUSSIFY ROMANIAN LIFE.
Formosa (Taiwan) and the Pescadores (Penghu) were Chinese territory for several centuries before they were ceded to Japan by the Treaty of Shimonoseki of April 18, 1895.
Abstract Understanding the nature of local–itinerant transition of strongly correlated electrons is one of the central problems in condensed matter physics. Heavy fermion systems describe the f-electron delocalization through Kondo interactions with conduction electrons. Tremendous efforts have been devoted to the so-called Kondo-destruction scenario, which predicts a dramatic local-to-itinerant quantum phase transition of f-electrons at zero temperature. On the other hand, two-fluid behaviors have been observed in many materials, suggesting coexistence of local and itinerant f-electrons over a broad temperature range but lacking a microscopic theoretical description. To elucidate this fundamental issue, here we propose an exactly solvable Kondo-Heisenberg model in which the spins are defined in the momentum space and the k-space Kondo interaction corresponds to a highly nonlocal spin scattering in the coordinate space. Its solution reveals a continuous evolution of the Fermi surfaces with Kondo interaction and two-fluid behaviors similar to those observed in real materials. The electron density violates the usual Luttinger's theorem, but follows a generalized one allowing for partially enlarged Fermi surfaces due to partial Kondo screening in the momentum space. Our results highlight the consequence of nonlocal Kondo interaction relevant for strong quantum fluctuation regions and provide important insight into the microscopic description of two-fluid phenomenology in heavy fermion systems.
In: Journal of the Society for Gynecologic Investigation: official publication of the Society for Gynecologic Investigation, Band 5, Heft 1, S. 121A-121A