Anomalies of magnetic properties and magnetovolume effect in Cd1-xMnxGeAs2 at hydrostatic pressure

作者：Mollaev A Yu; Kamilov I K; Arslanov R K; Arslanov T R^*; Zalibekov U Z; Novotortsev V M; Marenkin S F; Trukhan V M

来源：Applied Physics Letters, 2012, 100(20): 202403.

DOI：10.1063/1.4718419

We present the experimental results of the effect hydrostatic pressure up to P <= 7 GPa applied at the room temperatures in diluted magnetic semiconductor Cd1-xMnxGeAs2 (x = 0.06 - 0.3). We have found the pressure areas at which anomalies in magnetic properties were observed. Induced by hydrostatic pressure at P > 1.5 GPa magnetic phase transitions, interpreted as metamagnetic transition, were observed. The transitions from magnetic-ordered into magnetic disordered phases in region P > 4.1 GPa on the pressure dependences of relative volume compressibility were detected. We estimated the values of bulk modulus and volume magnetostriction. It is shown that high

• 出版日期2012-5-14