Title :
Magnetic properties of RZn with R=Tb1-xDyx (0⩽x⩽0.6) and R=Tb1-yGdy (0⩽y⩽0.4)
Author :
Clark, A.E. ; Teter, J.P. ; Wun-Fogle, M. ; Restorff, J.B. ; Lindberg, J.F.
Author_Institution :
Clark Assoc., Adelphi, MD, USA
fDate :
11/1/1995 12:00:00 AM
Abstract :
Magnetization, Young´s moduli, and magnetostriction were measured on polycrystalline samples of Tb1-xDyxZn and Tb 1-yGdyZn. The easy axis phase boundary was determined for 0⩽x⩽0.6 and 0⩽y⩽0.4. To derive temperature dependencies of Young´s moduli, small transducer rings were excited into resonance at frequencies ~100 kHz. Estimated magnetomechanical coupling factors of polycrystalline Tb0.8Gd 0.2Zn in the region of easy axis reorientation are ~0.6. Magnetostrictions of polycrystalline TbZn at 77 K saturated at ~0.2% with relatively low fields (~1000 Oe), even for compressive stresses >40 MPa
Keywords :
Curie temperature; Young´s modulus; dysprosium alloys; gadolinium alloys; magnetic anisotropy; magnetic structure; magnetisation; magnetomechanical effects; magnetostriction; terbium alloys; zinc alloys; (TbDy)Zn; (TbGd)Zn; 100 kHz; 77 K; Tb1-xDyxZn; Tb1-yGdyZn; Young´s moduli; compressive stresses; easy axis phase boundary; magnetization; magnetomechanical coupling factors; magnetostriction; polycrystalline samples; temperature dependencies; Couplings; Magnetic properties; Magnetic resonance; Magnetostriction; Phase measurement; Resonant frequency; Saturation magnetization; Temperature dependence; Transducers; Zinc;
Journal_Title :
Magnetics, IEEE Transactions on
