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Investigation of Thermodynamic Properties of Cu(NH3)4SO4.H2O, a Heisenberg Spin Chain Compound
Tanmoy Chakraborty, Harkirat Singh, Dipanjan Chaudhuri +3
Detailed experimental investigations of thermal and magnetic properties are presented for Cu(NH3)4SO4.H2O, an ideal uniform Heisenberg spin half chain compound. A comparison of the…
Absence of zero-point entropy in a triangular Ising antiferromagnet
Yuesheng Li, Sebastian Bachus, Yoshifumi Tokiwa +2
Frustrated Ising magnets host exotic excitations, such as magnetic monopoles in spin ice. The ground state (GS) in this case is characterized by an extensive degeneracy and associa…
Gapped ground state in the zigzag pseudospin-1/2 quantum antiferromagnetic chain compound PrTiNbO6
Yuesheng Li, Sebastian Bachus, Yoshifumi Tokiwa +2
We report a single-crystal study on the magnetism of the rare-earth compound PrTiNbO that experimentally realizes the zigzag pseudospin- quantum antiferromagnetic…
Observation of two critical points linked to the high field phase B in CeCu2Si2
Franziska Weickert, Philipp Gegenwart, Christoph Geibel +2
We present thermal expansion and magnetostriction measurements on a CeCu2Si2 single crystal of A/S-type up to 17.9T magnetic field applied along the crystallographic a-direction (D…
Breakdown of magnetic order in the pressurized Kitaev iridate -LiIrO
M. Majumder, R. S. Manna, G. Simutis +14
Temperature-pressure phase diagram of the Kitaev hyperhoneycomb iridate -LiIrO is explored using magnetization, thermal expansion, magnetostriction, and muon spin rotati…
Quantum oscillations and Dirac dispersion in the BaZnBi2 semimetal guaranteed by local Zn vacancy order
K. Zhao, E. Golias, Q. H. Zhang +6
We have synthesized single crystals of Dirac semimetal candidates AZnBi2 with A=Ba and Sr. In contrast to A=Sr, the Ba material displays a novel local Zn vacancy ordering, which ma…