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Title: Imaging anisotropic vortex dynamics in FeSe

Abstract

Strong vortex pinning in FeSe could be useful for technological applications and could provide clues about the coexistence of superconductivity and nematicity. To characterize the pinning of individual, isolated vortices, we simultaneously apply a local magnetic field and image the vortex motion with scanning SQUID susceptibility. We find that the pinning is highly anisotropic: the vortices move easily along directions that are parallel to the orientations of twin domain walls and pin strongly in a perpendicular direction. These results are consistent with a scenario in which the anisotropy arises from vortex pinning on domain walls and quantify the dynamics of individual vortex pinning in FeSe.

Authors:
 [1];  [1];  [1];  [2];  [1];  [1];  [2];  [3];  [4];  [5]
  1. Stanford Univ., CA (United States). Dept. of Applied Physics, and Inst. for Materials and Energy Sciences
  2. Stanford Univ., CA (United States). Department of Physics, and Inst. for Materials and Energy Sciences
  3. Stanford Univ., CA (United States). Geballe Lab. for Advanced Materials
  4. Stanford Univ., CA (United States). Dept. of Applied Physics, and Inst. for Materials and Energy Sciences; Stanford Univ., CA (United States). Geballe Lab. for Advanced Materials
  5. Stanford Univ., CA (United States). Dept. of Applied Physics, and Inst. for Materials and Energy Sciences; Stanford Univ., CA (United States). Geballe Lab. for Advanced Materials
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1560640
Alternate Identifier(s):
OSTI ID: 1546483
Grant/Contract Number:  
AC02-76SF00515; DGE-114747
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 100; Journal Issue: 2; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Zhang, Irene P., Palmstrom, Johanna C., Noad, Hilary, Bishop-Van Horn, Logan, Iguchi, Yusuke, Cui, Zheng, Mueller, Eli, Kirtley, John R., Fisher, Ian R., and Moler, Kathryn A. Imaging anisotropic vortex dynamics in FeSe. United States: N. p., 2019. Web. doi:10.1103/physrevb.100.024514.
Zhang, Irene P., Palmstrom, Johanna C., Noad, Hilary, Bishop-Van Horn, Logan, Iguchi, Yusuke, Cui, Zheng, Mueller, Eli, Kirtley, John R., Fisher, Ian R., & Moler, Kathryn A. Imaging anisotropic vortex dynamics in FeSe. United States. doi:10.1103/physrevb.100.024514.
Zhang, Irene P., Palmstrom, Johanna C., Noad, Hilary, Bishop-Van Horn, Logan, Iguchi, Yusuke, Cui, Zheng, Mueller, Eli, Kirtley, John R., Fisher, Ian R., and Moler, Kathryn A. Mon . "Imaging anisotropic vortex dynamics in FeSe". United States. doi:10.1103/physrevb.100.024514.
@article{osti_1560640,
title = {Imaging anisotropic vortex dynamics in FeSe},
author = {Zhang, Irene P. and Palmstrom, Johanna C. and Noad, Hilary and Bishop-Van Horn, Logan and Iguchi, Yusuke and Cui, Zheng and Mueller, Eli and Kirtley, John R. and Fisher, Ian R. and Moler, Kathryn A.},
abstractNote = {Strong vortex pinning in FeSe could be useful for technological applications and could provide clues about the coexistence of superconductivity and nematicity. To characterize the pinning of individual, isolated vortices, we simultaneously apply a local magnetic field and image the vortex motion with scanning SQUID susceptibility. We find that the pinning is highly anisotropic: the vortices move easily along directions that are parallel to the orientations of twin domain walls and pin strongly in a perpendicular direction. These results are consistent with a scenario in which the anisotropy arises from vortex pinning on domain walls and quantify the dynamics of individual vortex pinning in FeSe.},
doi = {10.1103/physrevb.100.024514},
journal = {Physical Review B},
number = 2,
volume = 100,
place = {United States},
year = {2019},
month = {7}
}

Journal Article:
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This content will become publicly available on July 22, 2020
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