Magnetic resistivity in SrRuO3 and the ferromagnetic phase transition

Y. Kats; L. Klein; J. W. Reiner; T. H. Geballe; M. R. Beasley; A. Kapitulnik

Magnetic resistivity in SrRuO₃ and the ferromagnetic phase transition

Y. Kats, L. Klein, J. W. Reiner, T. H. Geballe, M. R. Beasley, A. Kapitulnik

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40 Scopus citations

Abstract

We measured the resistivity of the itinerant ferromagnet SrRuO₃ as a function of temperature (120 K<T<180 K) and magnetic field (0<H<10 kOe) in the vicinity of the ferromagnetic phase transition (T_c∼ 150 K). We find that the magnetic resistivity ρ_m is related to the magnetization M by ρ_m(M)= ρ_m(O) - aM² over a wide range of M. From the analysis of the resistivity data we determine the critical parameters of the phase transition β= 0.34 ± 0.02, γ= 1.14±0.07 below T_c, γ= 1.17±0.14 above T_c C⁺/C^-∼4. Here β and γ are the critical exponents of the spontaneous magnetization and the susceptibility, respectively, and C⁺/C^- is the amplitude ratio of the susceptibility. Our results are supported by a collapse of the magnetoresistance data on a single curve when an approriate scaling function is used.

Original language	English
Article number	054435
Pages (from-to)	544351-544356
Number of pages	6
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	63
Issue number	5
State	Published - 1 Jan 2001
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Cite this

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title = "Magnetic resistivity in SrRuO3 and the ferromagnetic phase transition",

abstract = "We measured the resistivity of the itinerant ferromagnet SrRuO3 as a function of temperature (120 K<T<180 K) and magnetic field (0<H<10 kOe) in the vicinity of the ferromagnetic phase transition (Tc∼ 150 K). We find that the magnetic resistivity ρm is related to the magnetization M by ρm(M)= ρm(O) - aM2 over a wide range of M. From the analysis of the resistivity data we determine the critical parameters of the phase transition β= 0.34 ± 0.02, γ= 1.14±0.07 below Tc, γ= 1.17±0.14 above Tc C+/C-∼4. Here β and γ are the critical exponents of the spontaneous magnetization and the susceptibility, respectively, and C+/C- is the amplitude ratio of the susceptibility. Our results are supported by a collapse of the magnetoresistance data on a single curve when an approriate scaling function is used.",

author = "Y. Kats and L. Klein and Reiner, {J. W.} and Geballe, {T. H.} and Beasley, {M. R.} and A. Kapitulnik",

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TY - JOUR

T1 - Magnetic resistivity in SrRuO3 and the ferromagnetic phase transition

AU - Kats, Y.

AU - Klein, L.

AU - Reiner, J. W.

AU - Geballe, T. H.

AU - Beasley, M. R.

AU - Kapitulnik, A.

PY - 2001/1/1

Y1 - 2001/1/1

N2 - We measured the resistivity of the itinerant ferromagnet SrRuO3 as a function of temperature (120 K<T<180 K) and magnetic field (0<H<10 kOe) in the vicinity of the ferromagnetic phase transition (Tc∼ 150 K). We find that the magnetic resistivity ρm is related to the magnetization M by ρm(M)= ρm(O) - aM2 over a wide range of M. From the analysis of the resistivity data we determine the critical parameters of the phase transition β= 0.34 ± 0.02, γ= 1.14±0.07 below Tc, γ= 1.17±0.14 above Tc C+/C-∼4. Here β and γ are the critical exponents of the spontaneous magnetization and the susceptibility, respectively, and C+/C- is the amplitude ratio of the susceptibility. Our results are supported by a collapse of the magnetoresistance data on a single curve when an approriate scaling function is used.

AB - We measured the resistivity of the itinerant ferromagnet SrRuO3 as a function of temperature (120 K<T<180 K) and magnetic field (0<H<10 kOe) in the vicinity of the ferromagnetic phase transition (Tc∼ 150 K). We find that the magnetic resistivity ρm is related to the magnetization M by ρm(M)= ρm(O) - aM2 over a wide range of M. From the analysis of the resistivity data we determine the critical parameters of the phase transition β= 0.34 ± 0.02, γ= 1.14±0.07 below Tc, γ= 1.17±0.14 above Tc C+/C-∼4. Here β and γ are the critical exponents of the spontaneous magnetization and the susceptibility, respectively, and C+/C- is the amplitude ratio of the susceptibility. Our results are supported by a collapse of the magnetoresistance data on a single curve when an approriate scaling function is used.

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M3 - Article

AN - SCOPUS:0035135241

SN - 0163-1829

VL - 63

SP - 544351

EP - 544356

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 5

M1 - 054435

ER -

Magnetic resistivity in SrRuO₃ and the ferromagnetic phase transition

Abstract

ASJC Scopus subject areas

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