Open Access. Powered by Scholars. Published by Universities.®

Physics Commons

Open Access. Powered by Scholars. Published by Universities.®

University of Nebraska - Lincoln

Si-Hwang Liou Publications

1982

Articles 1 - 2 of 2

Full-Text Articles in Physics

Amorphous FeXNb100-X With Wide Composition Range, C.L. Chien, K.M. Unruh, Sy_Hwang Liou Nov 1982

Amorphous FeXNb100-X With Wide Composition Range, C.L. Chien, K.M. Unruh, Sy_Hwang Liou

Si-Hwang Liou Publications

Sputtered amorphous FexNb100-x (30 ≤ x ≤ 85) has been studied by Mössbauer spectroscopy and resistivity measurements. The samples with x< 60 are nonmagnetic. The magnetic ordering temperatures of the samples with x ≥ 60 increase with Fe content. Small magnetic hyperfine fields are observed in the magnetic samples, consistent with the small Fe moments measured. The resistivity of the magnetic and nonmagnetic samples show different temperature dependences. Only the magnetic samples exhibit a resistivity minimum, indicating a Kondo-like mechanism.


Magnetic, Mössbauer, And Resistivity Studies Of Amorphous Fe74Zr26 And Fe81Hf19 Alloys, C.L. Chien, K.M. Unruh, A. Levy, Sy_Hwang Liou, J.P. Stokes, R.J. Gambino, K. Fukamichi Mar 1982

Magnetic, Mössbauer, And Resistivity Studies Of Amorphous Fe74Zr26 And Fe81Hf19 Alloys, C.L. Chien, K.M. Unruh, A. Levy, Sy_Hwang Liou, J.P. Stokes, R.J. Gambino, K. Fukamichi

Si-Hwang Liou Publications

Amorphous metal-metal samples of Fe74Zr26 and Fe81Hf19 have been studied by bulk magnetic, Mössbauer spectroscopy and resistivity measurements. The values of Tc have been determined to be 285 K and 295 K for Fe74Zr26 and Fe81Hf19, respectively. Both the magnetic isotherms and Mössbauer measurements indicate that these samples are ferromagnetics. The isomer shifts and the quadrupole interactions are much smaller than those of amorphous Fe-metalloid systems. The P(H) are broad and extend to small H values. Negative temperature coefficients of the resistivity are observed at low ...