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Title: Possible quantum phase transition in partially Cu-doped ZrNi 2-x Cu x Ga Heusler alloys

Journal Article · · AIP Advances
DOI: https://doi.org/10.1063/9.0000263 · OSTI ID:1855513

We have studied the magneto-transport properties of a series of ZrNi 2- x Cu x Ga compounds. For all Cu concentration ( x ≤ 0.5) the samples exhibited the L2 1 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 T C to T = 0 highly indicated that a stoichiometry-dependent superconducting quantum phase transition may occur in ZrNi 2-x Cu x Ga at x c = 0.90.

Sponsoring Organization:
USDOE
Grant/Contract Number:
AC02-07CH11358
OSTI ID:
1855513
Journal Information:
AIP Advances, Journal Name: AIP Advances Journal Issue: 3 Vol. 12; ISSN 2158-3226
Publisher:
American Institute of PhysicsCopyright Statement
Country of Publication:
United States
Language:
English

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