2001/06/30 by R. Citro, E. Orignac · 12 citations
Physics and Astronomy · #Anisotropy #Condensed matter physics #Exchange bias #Magnetic anisotropy #Magnetic field #Magnetic properties of thin films #Magnetization #Materials science #Physics #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Quantum mechanics #Spin (aerodynamics) #Thermodynamics #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.65.134413
published in Physical review. B, Condensed matter 65(13) (American Physical Society) · 14 pages, 4 eps figures, corrected calculation of NMR rate (v3)
arxiv created 2001/09/23 · openalex publication_date 2002/03/19 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We investigate the effects of the Dzialoshinskii-Moriya (DM) and Kaplan-Shekhtman-Entin-Wohlman-Aharony (KSEA) interactions on various thermodynamic and magnetic properties of a spin-1/2 ladder. Using the Majorana fermion representation, we derive the spectrum of low energy excitations for a pure DM interaction and in presence of a superimposed KSEA interaction. We calculate the various correlation functions for both cases and discuss how they are modified with respect to the case of an isotropic ladder. We also discuss the electron spin resonance (ESR) spectrum of the system and show that it is strongly influenced by the orientation of the magnetic field with respect to the Dzialoshinskii-Moriya vector. Implications of our calculations for nuclear magnetic resonance and ESR experiments on ladder systems are discussed.