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Title: Quantum Oscillations in Flux-Grown SmB 6 with Embedded Aluminum

Abstract

SmB 6 is a candidate topological Kondo insulator that displays surface conduction at low temperatures. In this study, we perform torque magnetization measurements as a means to detect de Haas–van Alphen (dHvA) oscillations in SmB 6 crystals grown by aluminum flux. We find that dHvA oscillations occur in single crystals containing embedded aluminum, originating from the flux used to synthesize SmB 6. Measurements on a sample with multiple, unconnected aluminum inclusions show that aluminum crystallizes in a preferred orientation within the SmB 6 cubic lattice. The presence of aluminum is confirmed through bulk susceptibility measurements, but does not show a signature in transport measurements. Lastly, we discuss the ramifications of our results.

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [2]; ORCiD logo [3];  [4];  [4]; ORCiD logo [3]
  1. Univ. of California, Irvine, CA (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. National High Magnetic Field Laboratory, Los Alamos, NM (United States)
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  4. Univ. of California, Irvine, CA (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1511604
Alternate Identifier(s):
OSTI ID: 1508441
Report Number(s):
LA-UR-18-24663
Journal ID: ISSN 0031-9007; PRLTAO
Grant/Contract Number:  
89233218CNA000001
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 122; Journal Issue: 16; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Thomas, Sean Michael, Ding, Xiaxin, Ronning, Filip, Zapf, Vivien, Thompson, Joe David, Fisk, Zachary, Xia, Jing, and Ferrari Silveira Rosa, Priscila. Quantum Oscillations in Flux-Grown SmB6 with Embedded Aluminum. United States: N. p., 2019. Web. doi:10.1103/PhysRevLett.122.166401.
Thomas, Sean Michael, Ding, Xiaxin, Ronning, Filip, Zapf, Vivien, Thompson, Joe David, Fisk, Zachary, Xia, Jing, & Ferrari Silveira Rosa, Priscila. Quantum Oscillations in Flux-Grown SmB6 with Embedded Aluminum. United States. doi:10.1103/PhysRevLett.122.166401.
Thomas, Sean Michael, Ding, Xiaxin, Ronning, Filip, Zapf, Vivien, Thompson, Joe David, Fisk, Zachary, Xia, Jing, and Ferrari Silveira Rosa, Priscila. Tue . "Quantum Oscillations in Flux-Grown SmB6 with Embedded Aluminum". United States. doi:10.1103/PhysRevLett.122.166401.
@article{osti_1511604,
title = {Quantum Oscillations in Flux-Grown SmB6 with Embedded Aluminum},
author = {Thomas, Sean Michael and Ding, Xiaxin and Ronning, Filip and Zapf, Vivien and Thompson, Joe David and Fisk, Zachary and Xia, Jing and Ferrari Silveira Rosa, Priscila},
abstractNote = {SmB6 is a candidate topological Kondo insulator that displays surface conduction at low temperatures. In this study, we perform torque magnetization measurements as a means to detect de Haas–van Alphen (dHvA) oscillations in SmB6 crystals grown by aluminum flux. We find that dHvA oscillations occur in single crystals containing embedded aluminum, originating from the flux used to synthesize SmB6. Measurements on a sample with multiple, unconnected aluminum inclusions show that aluminum crystallizes in a preferred orientation within the SmB6 cubic lattice. The presence of aluminum is confirmed through bulk susceptibility measurements, but does not show a signature in transport measurements. Lastly, we discuss the ramifications of our results.},
doi = {10.1103/PhysRevLett.122.166401},
journal = {Physical Review Letters},
number = 16,
volume = 122,
place = {United States},
year = {2019},
month = {4}
}

Journal Article:
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This content will become publicly available on April 23, 2020
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