Magnetic Field and Pressure Dependence of Small Angle Neutron Scattering in MnSi

Pfleiderer, C; Reznik, D; Pintschovius, L; Haug, J

doi:10.1103/PHYSREVLETT.99.156406

Title: Magnetic Field and Pressure Dependence of Small Angle Neutron Scattering in MnSi

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Abstract

We report small angle neutron scattering of spontaneous and magnetic field aligned components of the helical spin polarization in MnSi for temperatures T down to 0.35 K, at pressures p up to 21 kbar, and magnetic field B up to 0.7 T. The parameter range of our study spans the first order transition between helical order and partial magnetic order at p{sub c}=14.6 kbar, which coincides with the onset of an extended regime of non-Fermi liquid resistivity. Our study suggests that MnSi above p{sub c} is not dominated by the remnants of the first order transition at p{sub c}, but that an unidentified mechanism favors stabilization of a new ground state other than helical order.

Authors:

Pfleiderer, C ^[1]; Reznik, D; Pintschovius, L ^[2]; Haug, J ^[3]

Physikalisches Institut, Universitaet Karlsruhe, Wolfgang-Gaede-Str. 1, D-76128 Karlsruhe (Germany)
Forschungszentrum Karlsruhe, Institut fuer Festkoerperphysik, D-76121 Karlsruhe (Germany)
Hahn-Meitner-Institut, Glienicker Strasse 100, D-14109 Berlin (Germany)

Publication Date:: Fri Oct 12 00:00:00 EDT 2007

OSTI Identifier:: 21024270

Resource Type:: Journal Article

Journal Name:: Physical Review Letters

Additional Journal Information:: Journal Volume: 99; Journal Issue: 15; Other Information: DOI: 10.1103/PhysRevLett.99.156406; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0031-9007

Country of Publication:: United States

Language:: English

Subject:: 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 36 MATERIALS SCIENCE; FERMI GAS; GROUND STATES; MAGNETIC FIELDS; MANGANESE SILICIDES; NEUTRON DIFFRACTION; PRESSURE DEPENDENCE; PRESSURE RANGE GIGA PA; SMALL ANGLE SCATTERING; SPIN ORIENTATION; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0000-0013 K

Citation Formats


                    Pfleiderer, C, Forschungszentrum Karlsruhe, Institut fuer Festkoerperphysik, D-76121 Karlsruhe, Physik Department E21, Technische Universitaet Muenchen, D-85748 Garching, Reznik, D, Pintschovius, L, and Haug, J. Magnetic Field and Pressure Dependence of Small Angle Neutron Scattering in MnSi.  United States: N. p., 2007. 
        Web.  doi:10.1103/PHYSREVLETT.99.156406.

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                    Pfleiderer, C, Forschungszentrum Karlsruhe, Institut fuer Festkoerperphysik, D-76121 Karlsruhe, Physik Department E21, Technische Universitaet Muenchen, D-85748 Garching, Reznik, D, Pintschovius, L, & Haug, J. Magnetic Field and Pressure Dependence of Small Angle Neutron Scattering in MnSi.  United States.  https://doi.org/10.1103/PHYSREVLETT.99.156406

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                    Pfleiderer, C, Forschungszentrum Karlsruhe, Institut fuer Festkoerperphysik, D-76121 Karlsruhe, Physik Department E21, Technische Universitaet Muenchen, D-85748 Garching, Reznik, D, Pintschovius, L, and Haug, J. 2007.  
        "Magnetic Field and Pressure Dependence of Small Angle Neutron Scattering in MnSi".  United States.  https://doi.org/10.1103/PHYSREVLETT.99.156406.

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@article{osti_21024270,

  title        = {Magnetic Field and Pressure Dependence of Small Angle Neutron Scattering in MnSi},

  author       = {Pfleiderer, C and Forschungszentrum Karlsruhe, Institut fuer Festkoerperphysik, D-76121 Karlsruhe and Physik Department E21, Technische Universitaet Muenchen, D-85748 Garching and Reznik, D and Pintschovius, L and Haug, J},

  abstractNote = {We report small angle neutron scattering of spontaneous and magnetic field aligned components of the helical spin polarization in MnSi for temperatures T down to 0.35 K, at pressures p up to 21 kbar, and magnetic field B up to 0.7 T. The parameter range of our study spans the first order transition between helical order and partial magnetic order at p{sub c}=14.6 kbar, which coincides with the onset of an extended regime of non-Fermi liquid resistivity. Our study suggests that MnSi above p{sub c} is not dominated by the remnants of the first order transition at p{sub c}, but that an unidentified mechanism favors stabilization of a new ground state other than helical order.},

  doi          = {10.1103/PHYSREVLETT.99.156406},

  url          = {https://www.osti.gov/biblio/21024270},
  journal      = {Physical Review Letters},

  issn         = {0031-9007},

  number       = 15,

  volume       = 99,

  place        = {United States},

  year         = {Fri Oct 12 00:00:00 EDT 2007},

  month        = {Fri Oct 12 00:00:00 EDT 2007}

}

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