Possible quantum phase transition in partially Cu-doped ZrNi2-xCuxGa Heusler alloys
Source abstract
Abstract
We have studied the magneto-transport properties of a series of ZrNi2-xCuxGa compounds. For all Cu concentration (x ≤ 0.5) the samples exhibited the L21 cubic structure at room temperature and demonstrated superconductivity below 2 K. A superconducting phase transition temperature of as low as ∼1 K and a critical magnetic field of 1.78 T was observed in the system. A linear extrapolation of TC to T = 0 highly indicated that a stoichiometry-dependent superconducting quantum phase transition may occur in ZrNi2-xCuxGa at xc = 0.90.
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Research context
OpenAlex topics: Rare-earth and actinide compounds · Heusler alloys: electronic and magnetic properties · Magnetic and transport properties of perovskites and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Physics, Miami University 1 , Oxford, Ohio 45056, USA
Department of Physics, SUNY Buffalo State 2 , Buffalo, New York 14222, USA
Funding
U.S. Department of Energy
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