Tailoring physical properties of crystals through synthetic temperature control: A case study for new polymorphic NbFeT e 2 phases
- Univ. of Texas at Dallas, Richardson, TX (United States)
- Washington Univ., St. Louis, MO (United States); Nanchang Univ. (China)
- Rice Univ., Houston, TX (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
- Rice Univ., Houston, TX (United States); Univ. of California, Berkeley, CA (United States)
- Rice Univ., Houston, TX (United States)
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Washington Univ., St. Louis, MO (United States)
Growth parameters play a significant role in the crystal quality and physical properties of layered materials. Here we present a case study on a van der Waals magnetic NbFeTe2 material. Two different types of polymorphic NbFeTe2 phases, synthesized at different temperatures, display significantly different behaviors in crystal symmetry, electronic structure, electrical transport, and magnetism. While the phase synthesized at low temperature showing behavior consistent with previous reports, the new phase synthesized at high temperature, has completely different physical properties, such as metallic resistivity, long-range ferromagnetic order, anomalous Hall effect, negative magnetoresistance, and distinct electronic structures. Neutron diffraction reveals out-of-plane ferromagnetism below 70 K, consistent with the electrical transport and magnetic susceptibility studies. Finally, our work suggests that simply tuning synthetic parameters in a controlled manner could be an effective route to alter the physical properties of existing materials potentially unlocking new states of matter, or even discovering new materials.
- Research Organization:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF); US Air Force Office of Scientific Research (AFOSR); National Science Foundation (NSF); US Department of the Navy, Office of Naval Research (ONR); Robert A. Welch Foundation; Gordon and Betty Moore Foundation (GBMF)
- Grant/Contract Number:
- AC02-05CH11231
- OSTI ID:
- 2404340
- Journal Information:
- Physical Review. B, Journal Name: Physical Review. B Journal Issue: 17 Vol. 109; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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