Magnetocrystalline two-fold symmetry in CaFe2O4 single crystal. (27th March 2017)

• Record Type: Journal Article
• Authors: Gandhi, Ashish Chhaganlal; Das, Rajasree; Chou, Fang-Cheng; Lin, Jauyn Grace
• Is Part Of: Journal of physics. Volume 29:Number 17(2017)
• Publication Date: 2017-03-27
• Subjects: CaFe2O4 -- 1D spin interaction -- ESR -- two-fold symmetry; Condensed matter -- Periodicals; Matière condensée -- Périodiques; Vaste stoffen; Vloeistoffen; Natuurkunde; Electronic journals; Computer network resources; 530.4105
• DOI: 10.1088/1361-648X/aa61f2
• Languages: English
• ISSNs: 0953-8984

Abstract

Abstract: Understanding of magnetocrystalline anisotropy in CaFe2 O4 is a matter of importance for its future applications. A high quality single crystal CaFe2 O4 sample is studied by using synchrotron x-ray diffraction, a magnetometer and the electron spin resonance (ESR) technique. A broad feature of the susceptibility curve around room temperature is observed, indicating the development of 1D spin interactions above the on-set of antiferromagnetic transition. The angular dependency of ESR reveals an in-plane two-fold symmetry, suggesting a strong correlation between the room temperature spin structure and magnetocrystalline anisotropy. This finding opens an opportunity for the device utilizing the anisotropy field of CaFe2 O4 .