Magnetic and magnetothermal studies of pure and doped gadolinium silicide nanoparticles for self-controlled hyperthermia applications

•First report on magnetic hyperthermia in Gd5Si4 nanoparticles.•High SAR and low TC∼315–320K; potential for self-controlled hyperthermia.•Gd5Si4 nanoparticles act as self-regulating heat switches.•Zero MR and HC near zero field highly desirable for biomedical applications.