NDLI: A first-order magnetic phase transition near 15 K with novel magnetic-field-induced effects in Er5Si3.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Mohapatra, Niharika Mukherjee, K. Sampathkumaran, E. V. Iyer, Kartik K.
Description	Country affiliation: India Author Affiliation: Mohapatra N ( School of Basics Sciences, Indian Institute of Technology-Bhubaneswar, Bhubaneswar 751013, India. niharika@iitbbs.ac.in)
Abstract	We present magnetic characterization of a binary rare-earth intermetallic compound Er(5)Si(3), crystallizing in Mn(5)Si(3)-type hexagonal structure, through magnetization, heat capacity, electrical resistivity and magnetoresistance measurements. Our investigations confirm that the compound exhibits two magnetic transitions with decreasing temperature, the first one at 35 K and the second one at 15 K. The present results reveal that the second magnetic transition is a disorder-broadened first-order transition, as shown by thermal hysteresis in the measured data. Another important finding is that, below 15 K, there is a magnetic-field-induced transition with a hysteretic effect with the electrical resistance getting unusually enhanced at this transition and the magnetoresistance is found to exhibit intriguing magnetic-field dependence, indicating novel magnetic phase coexistence phenomenon. It thus appears that this compound is characterized by interesting magnetic anomalies in the temperature-magnetic-field phase diagram.
ISSN	09538984
e-ISSN	1361648X
Journal	Journal of Physics: Condensed Matter
Issue Number	49
Volume Number	23
Language	English
Publisher	IOP Publishing
Publisher Date	2011-12-14
Publisher Place	Great Britain (UK)
Access Restriction	Open
Subject Keyword	Electric Impedance Erbium Chemistry Magnetic Fields Manganese Silicon Compounds Temperature Discipline Condensed Matter Physics
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Materials Science

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