Magnetic and magnetotransport properties of intermetallic SmMn{sub 2}Si{sub 2}
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Peoples Republic of (China)
- Department of Physics, University of New Orleans, New Orleans, Louisiana 70148 (United States)
The magnetic properties of naturally layered intermetallic compound SmMn{sub 2}Si{sub 2} with textured structure have been studied. There exist a ferromagnetic transition at 35 K and two antiferromagnetic transitions at 120 and 230 K. The antiferromagnetic state below 230 K exhibits different magnetoresistance, with a negative magnetoresistance of 3{percent}{endash}4{percent} for current I applied perpendicular to the c axis and with a positive magnetoresistance effect of about 4{percent}{endash}6{percent} for current I parallel to the c axis. The observed magnetoresistance is likely to be related to magnetovolume effects. In the ferromagnetic state, a positive magnetoresistance with a maximum increase of 22{percent} under an applied field of 5 T is observed at 4 K, and both H{perpendicular}I and H{parallel}I configurations show positive magnetoresistance. {copyright} {ital 1997 American Institute of Physics.}
- OSTI ID:
- 496603
- Report Number(s):
- CONF-961141-; ISSN 0021-8979; TRN: 97:016288
- Journal Information:
- Journal of Applied Physics, Vol. 81, Issue 8; Conference: 41. annual conference on magnetism and magnetic materials, Atlanta, GA (United States), 12-15 Nov 1996; Other Information: PBD: Apr 1997
- Country of Publication:
- United States
- Language:
- English
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