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Title: Anomalous Metamagnetism in the Low Carrier Density Kondo Lattice YbRh 3 Si 7

Abstract

We report complex metamagnetic transitions in single crystals of the new low carrier Kondo antiferromagnet YbRh 3Si 7. Electrical transport, magnetization, and specific heat measurements reveal antiferromagnetic order at T N = 7.5 K. Neutron diffraction measurements showthat the magnetic ground state of YbRh 3Si 7 is a collinear antiferromagnet, where themoments are aligned in the ab plane.With such an ordered state, no metamagnetic transitions are expected when a magnetic field is applied along the c axis. It is therefore surprising that high-field magnetization, torque, and resistivity measurements with H∥c reveal two metamagnetic transitions at μ 0H 1 = 6.7 T and μ 0H 2 = 21 T. When the field is tilted away from the c axis, towards the ab plane, both metamagnetic transitions are shifted to higher fields. The first metamagnetic transition leads to an abrupt increase in the electrical resistivity, while the second transition is accompanied by a dramatic reduction in the electrical resistivity. Thus, the magnetic and electronic degrees of freedom in YbRh 3Si 7 are strongly coupled. We discuss the origin of the anomalous metamagnetism and conclude that it is related to competition between crystal electric-field anisotropy and anisotropic exchange interactions.

Authors:
 [1];  [2];  [2];  [3];  [4];  [1];  [1];  [5];  [1];  [1];  [1];  [1];  [2];  [2];  [3];  [3];  [4];  [4];  [4];  [4] more »;  [5];  [6];  [6];  [7];  [8];  [9];  [9];  [1];  [1];  [1];  [1] « less
  1. Rice Univ., Houston, TX (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. Univ. of Texas, Dallas, TX (United States)
  4. Florida State Univ., Tallahassee, FL (United States). National High Magnetic Field Lab. (MagLab)
  5. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  6. National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States)
  7. McMaster Univ., Hamilton, ON (Canada)
  8. Max Planck Inst. for Chemical Physics of Solids, Dresden (Germany)
  9. Science and Technology Facilities Council (STFC), Didcot (United Kingdom). Rutherford Appleton Lab. (RAL), ISIS Facility
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1485739
Alternate Identifier(s):
OSTI ID: 1492544; OSTI ID: 1494013
Report Number(s):
LA-UR-18-30067
Journal ID: ISSN 2160-3308; PRXHAE
Grant/Contract Number:  
89233218CNA000001; SC0002613; SC0012311; AC05-00OR22725
Resource Type:
Published Article
Journal Name:
Physical Review. X
Additional Journal Information:
Journal Volume: 8; Journal Issue: 4; Journal ID: ISSN 2160-3308
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; High Magnetic Field Science

Citation Formats

Rai, Binod K., Chikara, S., Ding, Xiaxin, Oswald, Iain W. H., Schönemann, R., Loganathan, V., Hallas, A. M., Cao, H. B., Stavinoha, Macy, Chen, T., Man, Haoran, Carr, Scott, Singleton, John, Zapf, Vivien, Benavides, Katherine A., Chan, Julia Y., Zhang, Q. R., Rhodes, D., Chiu, Y. C., Balicas, Luis, Aczel, A. A., Huang, Q., Lynn, Jeffrey W., Gaudet, J., Sokolov, D. A., Walker, H. C., Adroja, D. T., Dai, Pengcheng, Nevidomskyy, Andriy H., Huang, C. -L., and Morosan, E. Anomalous Metamagnetism in the Low Carrier Density Kondo Lattice YbRh3Si7. United States: N. p., 2018. Web. doi:10.1103/PhysRevX.8.041047.
Rai, Binod K., Chikara, S., Ding, Xiaxin, Oswald, Iain W. H., Schönemann, R., Loganathan, V., Hallas, A. M., Cao, H. B., Stavinoha, Macy, Chen, T., Man, Haoran, Carr, Scott, Singleton, John, Zapf, Vivien, Benavides, Katherine A., Chan, Julia Y., Zhang, Q. R., Rhodes, D., Chiu, Y. C., Balicas, Luis, Aczel, A. A., Huang, Q., Lynn, Jeffrey W., Gaudet, J., Sokolov, D. A., Walker, H. C., Adroja, D. T., Dai, Pengcheng, Nevidomskyy, Andriy H., Huang, C. -L., & Morosan, E. Anomalous Metamagnetism in the Low Carrier Density Kondo Lattice YbRh3Si7. United States. doi:10.1103/PhysRevX.8.041047.
Rai, Binod K., Chikara, S., Ding, Xiaxin, Oswald, Iain W. H., Schönemann, R., Loganathan, V., Hallas, A. M., Cao, H. B., Stavinoha, Macy, Chen, T., Man, Haoran, Carr, Scott, Singleton, John, Zapf, Vivien, Benavides, Katherine A., Chan, Julia Y., Zhang, Q. R., Rhodes, D., Chiu, Y. C., Balicas, Luis, Aczel, A. A., Huang, Q., Lynn, Jeffrey W., Gaudet, J., Sokolov, D. A., Walker, H. C., Adroja, D. T., Dai, Pengcheng, Nevidomskyy, Andriy H., Huang, C. -L., and Morosan, E. Thu . "Anomalous Metamagnetism in the Low Carrier Density Kondo Lattice YbRh3Si7". United States. doi:10.1103/PhysRevX.8.041047.
@article{osti_1485739,
title = {Anomalous Metamagnetism in the Low Carrier Density Kondo Lattice YbRh3Si7},
author = {Rai, Binod K. and Chikara, S. and Ding, Xiaxin and Oswald, Iain W. H. and Schönemann, R. and Loganathan, V. and Hallas, A. M. and Cao, H. B. and Stavinoha, Macy and Chen, T. and Man, Haoran and Carr, Scott and Singleton, John and Zapf, Vivien and Benavides, Katherine A. and Chan, Julia Y. and Zhang, Q. R. and Rhodes, D. and Chiu, Y. C. and Balicas, Luis and Aczel, A. A. and Huang, Q. and Lynn, Jeffrey W. and Gaudet, J. and Sokolov, D. A. and Walker, H. C. and Adroja, D. T. and Dai, Pengcheng and Nevidomskyy, Andriy H. and Huang, C. -L. and Morosan, E.},
abstractNote = {We report complex metamagnetic transitions in single crystals of the new low carrier Kondo antiferromagnet YbRh3Si7. Electrical transport, magnetization, and specific heat measurements reveal antiferromagnetic order at TN = 7.5 K. Neutron diffraction measurements showthat the magnetic ground state of YbRh3Si7 is a collinear antiferromagnet, where themoments are aligned in the ab plane.With such an ordered state, no metamagnetic transitions are expected when a magnetic field is applied along the c axis. It is therefore surprising that high-field magnetization, torque, and resistivity measurements with H∥c reveal two metamagnetic transitions at μ0H1 = 6.7 T and μ0H2 = 21 T. When the field is tilted away from the c axis, towards the ab plane, both metamagnetic transitions are shifted to higher fields. The first metamagnetic transition leads to an abrupt increase in the electrical resistivity, while the second transition is accompanied by a dramatic reduction in the electrical resistivity. Thus, the magnetic and electronic degrees of freedom in YbRh3Si7 are strongly coupled. We discuss the origin of the anomalous metamagnetism and conclude that it is related to competition between crystal electric-field anisotropy and anisotropic exchange interactions.},
doi = {10.1103/PhysRevX.8.041047},
journal = {Physical Review. X},
number = 4,
volume = 8,
place = {United States},
year = {2018},
month = {12}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/PhysRevX.8.041047

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