Sökning: onr:"swepub:oai:DiVA.org:umu-222443" >
Transport propertie...
Transport properties of amorphous ferromagnets : Hall and ohmic resistivities
-
- Malmhäll, Roger (författare)
- Umeå universitet,Institutionen för fysik
-
- Bhagat, S. M. (författare)
- University of Maryland, College Park, USA
-
- Rao, K. V. (författare)
- University of Illinois at Urbana-Champaign, USA
-
visa fler...
-
- Bäckström, Gunnar (författare)
- Umeå universitet,Institutionen för fysik
-
visa färre...
-
(creator_code:org_t)
- John Wiley & Sons, 1979
- 1979
- Engelska.
-
Ingår i: Physica status solidi. A, Applied research. - : John Wiley & Sons. - 0031-8965 .- 1521-396X. ; 53:2, s. 641-651
- Relaterad länk:
-
https://urn.kb.se/re...
-
visa fler...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- Simultaneous measurements are made of the ohmic resistivity (ϱ) and the Hall resistivity (ϱH) of a number of amorphous ferromagnetic Fe–Ni based alloys prepared by the rapid quenching technique. The temperature range of the experiments is 100 through 700 K and the applied magnetic fields are varied up to 2.5 T. It turns out that for all the amorphous alloys: (i) R1 ≈ 5 × 10−8 m3/As, (ii) ϱ ≈ 1.5 μΩm, (iii) ϱH has a sharp drop from which the ferromagnetic transition temperature (TC) can be determined to ≈ 5 K, (iv) the critical exponent γ ≈ 1.6 for (TC + 1) < < T < (TC + 50) K, and (v) the extraordinary Hall conductivity γHs is of the same order (≈ 5 × 104 Ω−1 m−1) as in crystalline Fe alloys. Further, in some cases (dϱ/dT) exhibits a well-defined anomaly at TC.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- Electrical resistivity
- Hall resistivity
- amorphous ferromagnet
- Fe-Ni alloys
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas