Contracting non-Joulian magnets

Article

关键词: ADVANCED LIGHT-SOURCE;    MAGNETOSTRICTION;    ALLOYS;    MICROSCOPY;   

DOI  :  10.1103/PhysRevB.95.174425

来源: SCIE

【 摘 要 】

Recently, nonvolume conserving or non-Joulian magnetostriction has been reported in Fe-Ga alloys [H. D. Chopra and M. Wuttig, Nature (London) 521, 340 (2015); 538, 416 (2016)] that increase their volume by expanding in magnetic fields. Here, we report a complementary set of contracting non-Joulian crystals (Fe-Ge, Fe-Al) that decrease their volume. Results provide the critical compositional degree of freedom necessary for designing new alloys (beyond the initially reported Fe-Ga alloys) and establish this family of functional materials based on non-Joulian magnetostriction.

【 授权许可】

Free