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Title: Crystal structure and high-field magnetism of La{sub 2}CuO{sub 4}

Abstract

Neutron diffraction was used to determine the crystal structure and magnetic ordering pattern of a La{sub 2}CuO{sub 4} single crystal, with and without applied magnetic field. A previously unreported, subtle monoclinic distortion of the crystal structure away from the orthorhombic space group Bmab was detected. The distortion is also present in lightly Sr-doped crystals. A refinement of the crystal structure shows that the deviation from orthorhombic symmetry is predominantly determined to drive a continuous reorientation of the copper spins from the orthorhombic b axis to the c axis, directly confirming predictions based on prior magnetoresistance and Raman scattering experiments. A spin-flop transition induced by a c-axis oriented field previously reported for nonstoichiometric La{sub 2}CuO{sub 4} is also observed, but the transition field (11.5 T) is significantly larger than that in the previous work.

Authors:
 [1];  [2]; ;  [1];  [3];  [4];  [5];  [6]; ;  [7];  [8];  [9]
  1. Max-Planck-Institut fuer Festkoerperforschung, Heisenbergstr. 1, D-70569 Stuttgart (Germany)
  2. (Germany)
  3. Hahn-Meitner-Institut, Glienicker Str. 100, D-14109 Berlin (Germany)
  4. Brookhaven National Laboratory, Upton, New York 11973 (United States)
  5. (United States)
  6. Bell Laboratories Lucent Technologies, Murray Hill, New Jersey 07974 (United States)
  7. Central Research Institute of Electric Power Industry, 2-11-1 Iwato-kita, Komae, Tokyo 201-8511 (Japan)
  8. SNBL at ESRF, Boite Postale 220, F-38042 Grenoble Cedex 9 (France)
  9. (Switzerland)
Publication Date:
OSTI Identifier:
20788063
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. B, Condensed Matter and Materials Physics; Journal Volume: 73; Journal Issue: 14; Other Information: DOI: 10.1103/PhysRevB.73.144513; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANTIFERROMAGNETISM; COPPER; CUPRATES; DOPED MATERIALS; HIGH-TC SUPERCONDUCTORS; LANTHANUM COMPOUNDS; MAGNETIC FIELDS; MAGNETORESISTANCE; MONOCLINIC LATTICES; MONOCRYSTALS; NEUTRON DIFFRACTION; ORTHORHOMBIC LATTICES; RAMAN EFFECT; SPIN; SYMMETRY

Citation Formats

Reehuis, M., Hahn-Meitner-Institut, Glienicker Str. 100, D-14109 Berlin, Ulrich, C., Keimer, B., Prokes, K., Gozar, A., Bell Laboratories Lucent Technologies, Murray Hill, New Jersey 07974, Blumberg, G., Komiya, Seiki, Ando, Yoichi, Pattison, P., and Laboratory of Crystallography, Swiss Federal Institute of Technology, BSP-Dorigny, CH-1015 Lausanne. Crystal structure and high-field magnetism of La{sub 2}CuO{sub 4}. United States: N. p., 2006. Web. doi:10.1103/PHYSREVB.73.1.
Reehuis, M., Hahn-Meitner-Institut, Glienicker Str. 100, D-14109 Berlin, Ulrich, C., Keimer, B., Prokes, K., Gozar, A., Bell Laboratories Lucent Technologies, Murray Hill, New Jersey 07974, Blumberg, G., Komiya, Seiki, Ando, Yoichi, Pattison, P., & Laboratory of Crystallography, Swiss Federal Institute of Technology, BSP-Dorigny, CH-1015 Lausanne. Crystal structure and high-field magnetism of La{sub 2}CuO{sub 4}. United States. doi:10.1103/PHYSREVB.73.1.
Reehuis, M., Hahn-Meitner-Institut, Glienicker Str. 100, D-14109 Berlin, Ulrich, C., Keimer, B., Prokes, K., Gozar, A., Bell Laboratories Lucent Technologies, Murray Hill, New Jersey 07974, Blumberg, G., Komiya, Seiki, Ando, Yoichi, Pattison, P., and Laboratory of Crystallography, Swiss Federal Institute of Technology, BSP-Dorigny, CH-1015 Lausanne. Sat . "Crystal structure and high-field magnetism of La{sub 2}CuO{sub 4}". United States. doi:10.1103/PHYSREVB.73.1.
@article{osti_20788063,
title = {Crystal structure and high-field magnetism of La{sub 2}CuO{sub 4}},
author = {Reehuis, M. and Hahn-Meitner-Institut, Glienicker Str. 100, D-14109 Berlin and Ulrich, C. and Keimer, B. and Prokes, K. and Gozar, A. and Bell Laboratories Lucent Technologies, Murray Hill, New Jersey 07974 and Blumberg, G. and Komiya, Seiki and Ando, Yoichi and Pattison, P. and Laboratory of Crystallography, Swiss Federal Institute of Technology, BSP-Dorigny, CH-1015 Lausanne},
abstractNote = {Neutron diffraction was used to determine the crystal structure and magnetic ordering pattern of a La{sub 2}CuO{sub 4} single crystal, with and without applied magnetic field. A previously unreported, subtle monoclinic distortion of the crystal structure away from the orthorhombic space group Bmab was detected. The distortion is also present in lightly Sr-doped crystals. A refinement of the crystal structure shows that the deviation from orthorhombic symmetry is predominantly determined to drive a continuous reorientation of the copper spins from the orthorhombic b axis to the c axis, directly confirming predictions based on prior magnetoresistance and Raman scattering experiments. A spin-flop transition induced by a c-axis oriented field previously reported for nonstoichiometric La{sub 2}CuO{sub 4} is also observed, but the transition field (11.5 T) is significantly larger than that in the previous work.},
doi = {10.1103/PHYSREVB.73.1},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
number = 14,
volume = 73,
place = {United States},
year = {Sat Apr 01 00:00:00 EST 2006},
month = {Sat Apr 01 00:00:00 EST 2006}
}