Characterization of the Magnetic Phases of MnAs1−xPx Crystals

Abstract
The initial magnetic susceptibility χi is used to define critical fields separating different magnetic phases in MnAs1−xPx crystals. A phase diagram in TxB space and sections thereof are given for 0.03 < x < 0.15, 4.2 K < T < 300 K, and 0 < B < 7 T.