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Title: Tunable emergent heterostructures in a prototypical correlated metal

Abstract

We report at the interface between two distinct materials, desirable properties, such as superconductivity, can be greatly enhanced1, or entirely new functionalities may emerge. Similar to in artificially engineered heterostructures, clean functional interfaces alternatively exist in electronically textured bulk materials. Electronic textures emerge spontaneously due to competing atomic-scale interactions, the control of which would enable a top-down approach for designing tunable intrinsic heterostructures. This is particularly attractive for correlated electron materials, where spontaneous heterostructures strongly affect the interplay between charge and spin degrees of freedom. Here we report high-resolution neutron spectroscopy on the prototypical strongly correlated metal CeRhIn 5, revealing competition between magnetic frustration and easy-axis anisotropy—a well-established mechanism for generating spontaneous superstructures. Because the observed easy-axis anisotropy is field-induced and anomalously large, it can be controlled efficiently with small magnetic fields. Finally, the resulting field-controlled magnetic superstructure is closely tied to the formation of superconducting and electronic nematic textures in CeRhIn 5, suggesting that in situ tunable heterostructures can be realized in correlated electron materials.

Authors:
ORCiD logo [1];  [2]; ORCiD logo [3];  [1];  [1]; ORCiD logo [1];  [1];  [4]; ORCiD logo [5]; ORCiD logo [5];  [6]; ORCiD logo [7];  [7];  [1];  [8]; ORCiD logo [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). MPA-CMMS
  2. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). T-4
  4. National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States). NIST Center for Neutron Research
  5. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). QCMD
  6. STFC Rutherford Appleton Laboratory, Harwell Science and Innovation Campus, Chilton, Didcot (United Kingdom). ISIS Facility
  7. RWTH Aachen University and Jülich Centre for Neutron Science (JCNS) at Heinz Maier-Leibnitz Zentrum (MLZ), Garching (Germany). Institute of Crystallography
  8. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). MPA-CMMS; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; USDOE Laboratory Directed Research and Development (LDRD) Program
OSTI Identifier:
1435184
Alternate Identifier(s):
OSTI ID: 1460643
Report Number(s):
LA-UR-17-21281
Journal ID: ISSN 1745-2473
Grant/Contract Number:  
AC05-00OR22725; AC52-06NA25396
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Nature Physics
Additional Journal Information:
Journal Volume: 14; Journal Issue: 5; Journal ID: ISSN 1745-2473
Publisher:
Nature Publishing Group (NPG)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; Electronic properties and materials; Magnetic properties and materials; Surfaces, interfaces and thin films; Material Science

Citation Formats

Fobes, D. M., Zhang, S., Lin, S. -Z., Das, Pinaki, Ghimire, N. J., Bauer, E. D., Thompson, J. D., Harriger, L. W., Ehlers, G., Podlesnyak, A., Bewley, R. I., Sazonov, A., Hutanu, V., Ronning, F., Batista, C. D., and Janoschek, M. Tunable emergent heterostructures in a prototypical correlated metal. United States: N. p., 2018. Web. doi:10.1038/s41567-018-0060-9.
Fobes, D. M., Zhang, S., Lin, S. -Z., Das, Pinaki, Ghimire, N. J., Bauer, E. D., Thompson, J. D., Harriger, L. W., Ehlers, G., Podlesnyak, A., Bewley, R. I., Sazonov, A., Hutanu, V., Ronning, F., Batista, C. D., & Janoschek, M. Tunable emergent heterostructures in a prototypical correlated metal. United States. doi:10.1038/s41567-018-0060-9.
Fobes, D. M., Zhang, S., Lin, S. -Z., Das, Pinaki, Ghimire, N. J., Bauer, E. D., Thompson, J. D., Harriger, L. W., Ehlers, G., Podlesnyak, A., Bewley, R. I., Sazonov, A., Hutanu, V., Ronning, F., Batista, C. D., and Janoschek, M. Mon . "Tunable emergent heterostructures in a prototypical correlated metal". United States. doi:10.1038/s41567-018-0060-9.
@article{osti_1435184,
title = {Tunable emergent heterostructures in a prototypical correlated metal},
author = {Fobes, D. M. and Zhang, S. and Lin, S. -Z. and Das, Pinaki and Ghimire, N. J. and Bauer, E. D. and Thompson, J. D. and Harriger, L. W. and Ehlers, G. and Podlesnyak, A. and Bewley, R. I. and Sazonov, A. and Hutanu, V. and Ronning, F. and Batista, C. D. and Janoschek, M.},
abstractNote = {We report at the interface between two distinct materials, desirable properties, such as superconductivity, can be greatly enhanced1, or entirely new functionalities may emerge. Similar to in artificially engineered heterostructures, clean functional interfaces alternatively exist in electronically textured bulk materials. Electronic textures emerge spontaneously due to competing atomic-scale interactions, the control of which would enable a top-down approach for designing tunable intrinsic heterostructures. This is particularly attractive for correlated electron materials, where spontaneous heterostructures strongly affect the interplay between charge and spin degrees of freedom. Here we report high-resolution neutron spectroscopy on the prototypical strongly correlated metal CeRhIn5, revealing competition between magnetic frustration and easy-axis anisotropy—a well-established mechanism for generating spontaneous superstructures. Because the observed easy-axis anisotropy is field-induced and anomalously large, it can be controlled efficiently with small magnetic fields. Finally, the resulting field-controlled magnetic superstructure is closely tied to the formation of superconducting and electronic nematic textures in CeRhIn5, suggesting that in situ tunable heterostructures can be realized in correlated electron materials.},
doi = {10.1038/s41567-018-0060-9},
journal = {Nature Physics},
number = 5,
volume = 14,
place = {United States},
year = {Mon Mar 26 00:00:00 EDT 2018},
month = {Mon Mar 26 00:00:00 EDT 2018}
}

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