- Physical Review Journals
All JournalsPhysics Magazine

Physical Review Materials

Export citation

Export citation

Choose format for download:

Download Citation
  • Letter

Effective reduction of PdCoO2 thin films via hydrogenation and sign tunable anomalous Hall effect

Gaurab Rimal*, Caleb Schmidt, Hussein Hijazi, and Leonard C. Feldman

Yiting Liu

Elizabeth Skoropata, Jason Lapano, and Matthew Brahlek

Debangshu Mukherjee, Raymond R. Unocic, and Matthew F. Chisholm

Yifei Sun, Haoming Yu, and Shriram Ramanathan

Cheng-Jun Sun and Hua Zhou

Seongshik Oh†

  • Department of Physics and Astronomy, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA

  • Department of Physics and Astronomy, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA and State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China

  • Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA

  • Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA

  • School of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, USA

  • X-ray Science Division, Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439, USA

  • Department of Physics and Astronomy, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA and Center for Quantum Materials Synthesis, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, USA

  • *gr380@physics.rutgers.edu
  • †ohsean@physics.rutgers.edu
PDF

Phys. Rev. Materials 5, L052001 – Published 14 May, 2021

DOI: https://doi.org/10.1103/PhysRevMaterials.5.L052001

Abstract

PdCoO2, belonging to a family of triangular oxides called delafossite, is one of the most conducting oxides. Its in-plane conductivity is comparable to those of the best metals and exhibits hydrodynamic electronic transport with an extremely long mean free path at cryogenic temperatures. Nonetheless, it is nonmagnetic despite the presence of the cobalt ion. Here, we show that a mild hydrogenation process reduces PdCoO2 thin films to an atomically mixed alloy of PdCo with strong out-of-plane ferromagnetism and sign-tunable anomalous Hall effect. Considering that many other compounds remain little affected under a similar hydrogenation condition, this discovery may provide a route to creating novel spintronic heterostructures combining strong ferromagnetism, involving oxides and other functional materials.

View figure in article

Physics Subject Headings (PhySH)

Authorization Required

We need you to provide your credentials before accessing this content.
Article Available via CHORUS
Download Accepted Manuscript

Other Options

Supplemental Material (Subscription Required)

References (Subscription Required)

Outline

Information

Phys. Rev. Materials 5, L052001– Published 14 May, 2021
  • Received 1 February 2021
  • Revised 4 April 2021
  • Accepted 27 April 2021
Crossmark - Check for updates button

©2021 American Physical Society

Sign In to Your Journals Account

Filter

Filter

Article Lookup

Enter a citation