M. ElMassalami

Pressure-dependent magnetization and magnetoresistivity studies on tetragonal FeS (mackinawite): revealing its intrinsic metallic character

Abstract The transport and magnetic properties of the tetragonal Fe S were investigated using magnetoresistivity and magnetization within K, 70 kOe and 3.0 GPa. In addition, room-temperature x-ray diffraction and photoelectron spectroscopy were also applied. In contrast to previously reported nonmetallic character, Fe S is intrinsically metallic but due to a presence of a weak localization such metallic character is not exhibited below room temperature. An applied pressure reduces strongly this additional resistive contribution and as such enhances the temperature range of the metallic character which, for ∼3 GPa, is evident down to 75 K. The absence of superconductivity as well as the mechanism behind the weak localization will be discussed.

Tuning in magnetic modes in Tb(Co x Ni 1 − x ) 2 B 2 C: From longitudinal spin-density waves to simple ferromagnetism

Neutron diffraction and thermodynamic techniques were used to probe the evolution of the magnetic properties of Tb(Co

Evolution of magnetic layers stacking sequence within the magnetic structure of Ho(CoxNi1−x)2B2C

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A New Noncentrosymmetric Superconducting Phase in the Li–Rh–B System

Ni

Resistivity studies on the layered semi-metallic CaAl2Si2: evaluating its temperature-, field- and pressure-dependence

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Manifestation of hopping conductivity and granularity within phase diagrams of LaO1–x F x BiS2, Sr1–x La x FBiS2 and related BiS2-based compounds

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Linear magnetoresistivity in layered semimetallic CaAl 2 Si 2

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On the superconductivity of the LixRhBy compositions

B

Probing the electronic properties of ternary AnM3n−1B2n (n = 1: A = Ca, Sr; M = Rh, Ir and n = 3: A = Ca, Sr; M = Rh) phases: observation of superconductivity

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Specific heat investigation on the magnetic phase diagrams of RNi2B2C (R=Gd, Er)

C. A succession of magnetic modes was observed as