Effect of lattice distortions and anisotropy on the magnetic ground state and spin dynamics of the multiferroic phase of doped CuFeO2

Journal Article · Fri Jan 01 00:00:00 EST 2010 · Physical Review B

DOI:https://doi.org/10.1103/PhysRevB.82.144441· OSTI ID:1001724

Haraldsen, Jason T ^[1]; Fishman, Randy Scott ^[1]

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1. ORNL

We investigate the effects of lattice distortions and anisotropy on the non-collinear ground state and spin dynamics of the multiferroic phase of doped CuFeO2. Using a Holstein-Primakoff expansion, we evaluate the change in the spin dynamics as lattice distortions and anisotropy distort the simple incommensurate helix. Distinct features in the spin dynamics that are created by lattice distortions and anisotropy have recently been observed in Ga-doped CuFeO2.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Laboratory Directed Research and Development (LDRD) Program
• DOE Contract Number: DE-AC05-00OR22725
• OSTI ID: 1001724
• Journal Information: Physical Review B, Vol. 82, Issue 14; ISSN 1098--0121
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANISOTROPY
GROUND STATES
SPIN