Fayoum University

output

20092026

B_{s}^{0} \to μ^{+} μ^{-}

decay from the combined analysis of CMS and LHCb data

508 citations

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7 papers · 1 filter

cond-mat.str-el2026

Critical behavior and evidence of dimensional crossover in quasi-two-dimensional Li $_{2}$ FeSiO $_{4}$

Waldemar Hergett, Kevin Ackermann, Erik Walendy +5

We report thermal expansion and heat capacity studies on Li $_{2}$ FeSiO $_{4}$ single crystals which enable us to investigate the critical behavior in the magnetically quasi-two-dimensio…

cond-mat.str-el2025★ 2 cited

Quasi-two-dimensional magnetism and antiferromagnetic ground state in Li $_{2}$ FeSiO $_{4}$

W. Hergett, N. Bouldi, M. Jonak +7

Our experimental (neutron diffraction, Mössbauer spectroscopy, magnetic susceptibility, specific heat) and numerical studies on the evolution of short- and long-range magnetic orde…

cond-mat.str-el2019★ 16 cited

High-pressure optical floating-zone growth of Li2FeSiO4 single crystals

Waldemar Hergett, Christoph Neef, Hubert Wadepohl +5

We report the growth of mm-sized Pmnb-Li2FeSiO4 single crystals by means of the optical floating-zone method at high argon pressure and describe the conditions required for a stabl…

cond-mat.str-el2018★ 7 cited

Magnetism and the phase diagram of MnSb $_{2}$ O $_{6}$

C. Koo, J. Werner, M. Tzschoppe +10

Static and dynamic magnetic properties of P\={3}1 $m$ -phase MnSb $_{2}$ O $_{6}$ have been studied by means of muon spin relaxation ( $μ$ SR), high-frequency electron spin resonance (HF-ESR)…

cond-mat.str-el2018★ 13 cited

Magnetoelastic coupling and ferromagnetic-type in-gap spin excitations in multiferroic $α$ -Cu $_{2}$ V $_{2}$ O $_{7}$

L. Wang, J. Werner, A. Ottmann +6

We investigate magnetoelectric coupling and low-energy magnetic excitations in multiferroic $α$ -Cu $_{2}$ V $_{2}$ O $_{7}$ by detailed thermal expansion, magnetostriction, specific heat and…

cond-mat.str-el2014★ 10 cited

Quantum spin chain as a potential realization of the Nersesyan-Tsvelik model

C. Balz, B. Lake, H. Luetkens +9

It is well established that long-range magnetic order is suppressed in magnetic systems whose interactions are low-dimensional. The prototypical example is the S-1/2 Heisenberg ant…

Critical behavior and evidence of dimensional crossover in quasi-two-dimensional Li2​FeSiO4​

Quasi-two-dimensional magnetism and antiferromagnetic ground state in Li2​FeSiO4​