Phenomenological analysis of the s-d exchange interaction in dilute Cu-Mn alloy at helium temperature

Al-Jalali, Muhammad A.

doi:10.5185/amlett.2013.5486

Cited by 6 publications

(3 citation statements)

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“…Therefore, Ag-Cu alloy nanoparticles are synthesized for many industrial power applications. 2 A literature survey reveals that Ag and Cu alloy formation is more spontaneous at 1 : 1 due to the homogeneous character of the crystalline structure. 3 It has been reported that bimetallic alloys of Ag and Cu possess characteristic features and most of their properties such as free energy of mixing and electrical properties vary asymmetrically as a function of concentration.…”

Section: Introductionmentioning

confidence: 99%

Monitoring of 2-butanone using a Ag–Cu bimetallic alloy nanoscale electrochemical sensor

et al. 2015

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Cu-Ag alloy nanoparticles were synthesized by a novel method and coated over glassy carbon electrode for the detection of a carcinogen, 2-butanone Abstract Spherical shaped silver-copper alloy nanoparticles of 10-15 nm size were synthesized by an aqueous polymer solution method. The synthesized nanoscale Ag-Cu alloy was characterized by UV-Visible spectroscopy, X-ray diffraction spectroscopy, transmission electron microscopy (TEM), high resolution TEM, and energy dispersive spectroscopy. XRD pattern showed high crystallinity and phase formation of nanoparticles. The bimetallic alloy nanoparticles were coated over a well-polished glassy carbon electrode and the designed sensor was applied for the detection of a highly carcinogenic carbonyl compound, 2-butanone. Electrochemical studies revealed that PEI used as a capping agent also enhances the sensing of the modified electrode for the recognition of 2-butanone. The sensor developed from Ag-Cu (1:1) alloy nanoparticles showed the best sensing properties for the detection of 2-butanone as evidenced by electrochemical impedance spectroscopy and 0.1 µM detection limit.

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Section: Introductionmentioning

confidence: 99%

Monitoring of 2-butanone using a Ag–Cu bimetallic alloy nanoscale electrochemical sensor

et al. 2015

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“…This part will shed light on the relaxation time ( ) τ and the number of particles (fermions and bosons) in the resistivity by comparing between theoretical and experimental expressions, where as previous works [20]- [23] were concentrated on the general behavior of resistivity, phase diagrams of Kondo and spin glasses, maximum and minimum of resistivity, s-d and RKKY interactions. At low temperatures, there are competitions between different interactions, like electron-electron, electron-phonon, electron-magnon, electronimpurity interaction, s-d interaction in Kondo alloys, and RKKY interaction in spin glass alloys.…”

Section: Resultsmentioning

confidence: 99%

Fermi-Dirac and Bose-Einstein Integrals and Their Applications to Resistivity in Some Magnetic Alloys, Part III

Al-Jalali¹,

Mouhammad²

2016

JAMP

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The Fermi-Dirac (FD) and Bose-Einstein (BE) integrals were applied to a quantum system to estimate the density of particles and relaxation time in some magnetic alloys at low temperatures. An integral part in the energy equations of vibrations (phonons), spin waves (magnons), and electrons was mathematically treated. Comparison between theoretical and experimental results gave good semi-empirical relations and some physical constants.

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“…Values of J sd were calculated [31,32] according to a width of internal field distribution at T max (characterize the maximum value of the resistivity in figure (1)). Whereas figure (7) represents T max variation with Mn's concentration and a variation of J sd with concentration reveals an expression as the following:…”

Section: Vs Ln (T/c %) For Cu-mn Alloysmentioning

confidence: 99%

Phenomenon of Maximum and Minimum in the Resistivity of Cu-Mn Kondo Alloys at Low Temperatures

Al-Jalali¹

2014

AJPA

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Abstract:A New analysis of the electrical resistivity has been studied for Cu-Mn Kondo alloys, and it was found a solution like a logarithm power series between resistivity and temperature, which cover all ranges of maximum and minimum in the resistivity and all kinds of interactions at low temperatures. The s-d exchange integral J sd acting the main role in Kondo effect Phenomenon, J sd is negative or positive, according to a kind of interaction between conduction electron spins of the host normal metal and localized spins of the transition element. PACS: 75: 50, 75:10, 75: 40, 75: 30.

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Phenomenological analysis of the s-d exchange interaction in dilute Cu-Mn alloy at helium temperature

Cited by 6 publications

References 0 publications

Monitoring of 2-butanone using a Ag–Cu bimetallic alloy nanoscale electrochemical sensor

Monitoring of 2-butanone using a Ag–Cu bimetallic alloy nanoscale electrochemical sensor

Fermi-Dirac and Bose-Einstein Integrals and Their Applications to Resistivity in Some Magnetic Alloys, Part III

Phenomenon of Maximum and Minimum in the Resistivity of Cu-Mn Kondo Alloys at Low Temperatures

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