Magneto transport and critical behavior in metastable Fe15Cu85

Author:

Younus Sidrah12,Mustafa Faisal12,Egilmez Mehmet12,Al Awadhi Mariam23,Abuzaid Wael23,El Khatib Sami12,Alagöz Serhat4,Hai Alami Abdul56

Affiliation:

1. Department of Physics, American University of Sharjah, Sharjah 26666, UAE

2. Materials Science and Engineering Program, College of Arts and Sciences, American University of Sharjah, Sharjah 26666, UAE

3. Department of Mechanical Engineering, American University of Sharjah, Sharjah 26666, UAE

4. Department of Physics, University of Alberta, Edmonton, Alberta T6G 2E1, Canada

5. Department of Sustainable and Renewable Engineering, University of Sharjah, Sharjah 27272, UAE

6. Center for Advanced Materials Research, University of Sharjah, Sharjah 27272, UAE

Abstract

FexCu[Formula: see text] binary alloys attracted much attention owing to their rich magnetic phase diagram and the challenges of achieving single phases in these systems. Despite early efforts put toward studying the physical properties of low-Cu doping in Fe–Cu alloys, a detailed understanding of the magnetic, structural and electrical properties of high Cu doping in Fe–Cu alloys remains not clear. In this report, we use X-ray diffraction (XRD), scanning electron microscopy, electrical transport and magnetic measurements to gain more insight into Fe[Formula: see text]Cu[Formula: see text] single-phase alloy system. Experimental findings show that the samples exhibit a second-order phase transition, which is consistent with the classical mean-field model. Moreover, negative magnetoresistance is observed at all temperatures and explained through classical models.

Funder

American University of Sharjah

Publisher

World Scientific Pub Co Pte Ltd

Subject

Condensed Matter Physics,Statistical and Nonlinear Physics

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