Department of Physics2024-11-0920081539-375510.1103/PhysRevE.78.0311042-s2.0-51349107482https://hdl.handle.net/20.500.14288/1594The Blume-Emery-Griffiths spin glass is studied by renormalization-group theory in d=3. The boundary between the ferromagnetic and paramagnetic phases has first-order and two types of second-order segments. This topology includes an inverted tricritical point, first-order transitions replacing second-order transitions as temperature is lowered. The phase diagrams show disconnected spin-glass regions, spin-glass and paramagnetic reentrances, and complete reentrance, where the spin-glass phase replaces the ferromagnet as temperature is lowered for all chemical potentials.pdfPhysicsMathematical physicsJournal Article1550-2376https://doi.org/10.1103/PhysRevE.78.031104259682700011Q1NOIR00776