Volume magnetic domain mirroring in magnetic shape memory crystals

Yiu-Wai Lai; Schäfer, Rudolf; Schultz, Ludwig; McCord, Jeffrey
January 2010
Applied Physics Letters;1/11/2010, Vol. 96 Issue 2, p022507
Academic Journal
From the magnetic domain patterns at adjacent crystal surfaces of NiMnGa shape memory crystals the internal domain configurations across a hidden twin-boundary are derived. The results proof the existence of domains extending from the sample surfaces into the nonvisible sample volume. Moreover, the structural twin boundary inside the material acts as a mirror for the basic domains. The analysis validates the relevance of surface magnetic response analysis for the understanding of the magnetoelastic behavior of magnetic shape memory alloys and is essential for the interpretation of magnetic domain images obtained from other surface-restricted observation techniques.


Related Articles

  • Influence of stress on the magnetic domain structure in Fe81Ga19 alloys. Song, H. Z.; Li, Y. X.; Zhao, K. Y.; Zeng, H. R.; Hui, S. X.; Li, G. R.; Yin, Q. R.; Wu, G. H. // Journal of Applied Physics;Jan2009, Vol. 105 Issue 1, p013913 

    Grains, grain boundaries, magnetic domain distributions, and their correlations in Fe81Ga19 alloys as-cast, annealed, and under compressive and grinding stresses were investigated using scanning electron acoustic microscopy (SEAM) and magnetic force microscopy (MFM). For as-cast and annealed...

  • The Domain Structure of Cs[sub 3]H(SeO[sub 4])[sub 2] Crystals. Kirpichnikova, L.F.; Polomska, M.; Szczesniak, L.; Hilczer, B. // Crystallography Reports;Sep2003, Vol. 48 Issue 5, p819 

    The characteristics of the changes in the domain structure of Cs[sub 3]H(SeO[sub 4])[sub 2] crystals have been studied in a wide temperature range. An anomalous change in the domain structure in the temperature range near the superprotonic phase transition was found. The anomalies in this...

  • Balanced and Unbalanced Domain Walls in Pb[sub 3](PO[sub 4])[sub 2]. Nepochatenko, V. A. // Crystallography Reports;May2002, Vol. 47 Issue 3, p467 

    The equations of domain walls in the vicinity of a phase transition are obtained from the condition of the deformation balance at phase boundaries and domain walls for a ferroelastic lead orthophosphate crystal. All domain walls can be divided into three groups, in accordance with the conditions...

  • Domain configuration and crystal structure of Pb(Zn[sub 1/3]Nb[sub 2/3])O[sub 3]–5%PbTiO[sub 3] crystals as a function of the electric-field direction. Lee, Jung-Kun; Yi, Jae Yun; Hong, Kug-Sun; Park, Seung-Eek; Millan, Jorge // Journal of Applied Physics;4/1/2002, Vol. 91 Issue 7, p4474 

    The domain configuration of 0.95Pb(Zn[sub â…“]Nb[sub â…”])O[sub 3] - 0.05PbTiO[sub 3] single crystals was investigated as a function of the applied electric-field direction with respect to the crystallographic orientation. A normal ferroelectric domain structure, which was not...

  • Rate-dependent indentation behavior of solder alloys. Feng-Jiang Wang; Xin Ma; Yi-Yu Qian // Journal of Materials Science;Apr2005, Vol. 40 Issue 8, p1923 

    Finite element (FE) simulations of visco-plastic indentation in Sn-37Pb eutectic solder alloy are performed to investigate the influence of loading rate on its creep characteristic. The resulting indentation load-displacement curves are rate-dependent and have varying creep penetration depths...

  • Property analysis for sulfide alloys based on nickel. Saltykova, S. N.; Telyakov, N. M.; Dolivo-Dobrovolskaya, G. I.; Beloglazov, I. N.; Mirvaliev, S. V. // Metallurgist;Jan2010, Vol. 54 Issue 1/2, p62 

    Alloys of nickel sulfide are analyzed with different additions of cobalt and nickel. The effect of iron and cobalt content on the nature of phase distribution in nickel alloys is studied. Microstructural analysis is provided for the alloys obtained, the dependence of crystal lattice parameter...

  • EFFECT OF CHEMICAL COMPOSITION ON THE ELONGATION PROPEIETIES. Mironeasa, S.; Gutt, G.; Gutt, S.; Mironeasa, C. // Annals of DAAAM & Proceedings;2010, p137 

    Alloying elements influence the mechanical properties of the metal sheet that will be subject to plastic deformation. Research has allowed the determination of an empirical relationship which allows the calculation of the elongation if the chemical composition is known. Also it has been...

  • Thermopower Monitoring of Relaxation and Devitrification in Fe-Based Glassy Alloys. LOVAS, A.; KRAVCAK, J.; SZABó, A. // Acta Physica Polonica, A.;Jun2014, Vol. 125 Issue 6, p78 

    The change of thermopower is investigated in Fe-based glassy alloys during structural relaxation and amorphous-crystalline transformation. It was found, that thermopower shifts to negative direction until solely the relaxation proceeds. This negative shift is composition independent. The net...

  • Crystallization Processes of R4.5Fe77B18.5 (R = Pr, Nd) Amorphous Alloys. MUSIAŁ, A.; ŠNIADECKI, Z.; PAGNANI, D.; IDZIKOWSKI, B. // Acta Physica Polonica, A.;Jun2014, Vol. 125 Issue 6, p316 

    The amorphous alloys R4.5Fe77B18.5 (R=Pr, Nd) were prepared by melt-spinning technique under argon atmosphere on a cooper wheel rotating with surface velocity of 25 m·s-1. The ribbons have been investigated by means of X-ray diffraction (XRD) and differential scanning calorimetry (DSC)....


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics