Zur magnetischen Widerstandsänderung reiner Metalle

Köhler, Max

doi:10.1002/andp.19384240124

Cited by 176 publications

(56 citation statements)

References 5 publications

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“…In standard metals, the MR ∆ρ/ρ at a certain temperature under a field H has a general form known as the Kohler's rule 16,17 : ∆ρ/ρ=f (H/ρ). This rule can be derived from Boltzmann transport theory, on the assumption of constant carrier number with T and a single scattering rate on the Fermi surface.…”

Section: Resultsmentioning

confidence: 99%

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Synthesis, physical properties, and band structure of the layered bismuthidePtBi2

Xing

et al. 2016

Phys. Rev. B

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We report details of single crystal growth of stoichiometric bismuthide PtBi2 whose structure consists of alternate stacking of Pt layer sandwiched by Bi bilayer along the c-axis. The compound crystallizes in space group P-3 with a hexagonal unit cell of a=b=6.553Å, c=6.165Å. The magnetization data show opposite sign for fields parallel and perpendicular to the Pt layers, respectively. The T -dependent resistivity is typical of a metal and the magnetic response shows clear two types of charge carriers and the validity of the semi-classical Kohler's rule. Its physical properties was discussed in comparison with recently proposed topological superconductor β-PdBi2.

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Section: Resultsmentioning

confidence: 99%

“…The magnetoresistance (MR) and Hall resistivity measured on the same sample both show two types of carriers and the former one scales well to the semi-classical Kohler's rule. 16,17 II. EXPERIMENTAL PtBi 2 single crystals were fabricated via a melt-growth method.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, physical properties, and band structure of the layered bismuthidePtBi2

Xing

et al. 2016

Phys. Rev. B

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“…T he figure suggests that its resistivity is proportional to H 2 at all temperatures. Kohler's rule [22] is however only valid when all the curves coincide. We see that the curves at 87 K and 176 K nicely overlap but that the low temperature data deviate.…”

Section: Discussionmentioning

confidence: 99%

High field magnetoresistivity of epitaxial La2−xSrxCuO4 thin films

Vanacken

Weckhuysen

Wambecq

et al. 2005

Physica C: Superconductivity and its Applications

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A large positive magnetoresistivity (up to tens of percents) is observed in both underdoped and overdoped superconducting La 2-x Sr x CuO 4 epitaxial thin films at temperatures far above the superconducting critical temperature T c . For the underdoped samples, this magnetoresistance far above T c cannot be described by the Kohler rule and we believe it is to be attributed to the influence of superconducting fluctuations. In the underdoped regime, the large magnetoresistance is only present when at low temperatures superconductivity occurs. T he strong magnetoresistivity, which persists even at temperatures far above T c , can be related to the pairs forming eventually the superconducting state below T c . Our observations support the idea of a close relation between the pseudogap and the superconducting gap and provide new indications for the presence of pairs above T c .

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“…This translates to the motion of the electron (hole) influenced by the magnetic field, which is obviously absent in a closed loop. A general response of resistance to magnetic field was proposed by Kohler [73], which states that the percentage change in the resistance is a function of Ht, where H is the applied magnetic field and t is the relaxation time. This is also rewritten as a function GðH=rð0ÞÞ [73,74].…”

Section: Magnetoresistance: Normal Versus Colossal Magnetoresistance mentioning

confidence: 99%

Metal–insulator transition and colossal magnetoresistance: relevance of electron–lattice coupling and electronic phase separation

Sudheendra

Moshnyaga

Samwer

2007

Contemporary Physics

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In this article, we review the insulator-metal transition and the colossal magnetoresistance effect in manganites. The relevance of electron-lattice coupling and the resulting Jahn-Teller polaron is elaborated. The general features of electronic phase separation, which results from disorder and strain effects, are discussed along with electron-lattice coupling effects. Although a comprehensive theory is still lacking that can account for all the intricate features of manganite physics, electronic-phase separation and electronlattice coupling appear to capture the essence of the colossal magnetoresistance effect in manganites.

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Zur magnetischen Widerstandsänderung reiner Metalle

Cited by 176 publications

References 5 publications

Synthesis, physical properties, and band structure of the layered bismuthidePtBi2

Synthesis, physical properties, and band structure of the layered bismuthidePtBi2

High field magnetoresistivity of epitaxial La2−xSrxCuO4 thin films

Metal–insulator transition and colossal magnetoresistance: relevance of electron–lattice coupling and electronic phase separation

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