Temperature- and magnetic-field-controlled magnetic pole reversal in a molecular magnetic compound

Yusuf, S. M.; Kumar, Amit; Yakhmi, J. V.
November 2009
Applied Physics Letters;11/2/2009, Vol. 95 Issue 18, p182506
Academic Journal
A highly reversible (bipolar) switching of magnetization in a Prussian blue type molecular magnet Cu0.73Mn0.77[Fe(CN)6]·zH2O using low magnetic fields is demonstrated. The studied molecular compound also shows both positive and negative magnetocaloric effects below its magnetic ordering temperature. A molecular field theory calculation has also been done to explain the observed temperature dependent magnetization reversal behavior. Possible applications of the magnetic pole reversal phenomenon in magnetoelectronic and magnetocaloric devices such as magnetic memory and magnetic cooling/heating based constant temperature bath have been revealed.


Related Articles

  • The Magnetism of the Iron Age. PATEL, SAMIR S. // Archaeology;Nov/Dec2015, Vol. 68 Issue 6, p23 

    In this article, the author reflects upon the Earth's magnetic field, dealing with topics including how every few hundred thousand years the north and south magnetic poles "flip" position, how the Earth's magnetic field has been weakening for the last 160 years and how clues to these processes...

  • The Effect of Magnet Magnetization Vector Orientation in Halbach Arrays on the Effectiveness of Separation. REPKOVÁ, J.; MAHULIAKOVÁ, M.; CIPRIAN, D.; LESŇÁK, M.; LUŇÁČEK, J. // Acta Physica Polonica, A.;Jul2014, Vol. 126 Issue 1, p158 

    Magnetic separation is one of the methods that are used to separate magnetic and non-magnetic components from an input mixture. Its effectiveness strongly depends on the strength and distribution of magnetic field in the separator. It is economical to use Halbach permanent magnet arrays to...

  • Prevalence of Magnetic Field Forces and Universal Symmetry of Nature. Cinar, Yildirim // AIP Conference Proceedings;2003, Vol. 666 Issue 1, p357 

    Prevalence and equivalence of attraction and repulsion forces of magnets were searched. The repulsion between S poles was stronger by 216 percent than the repulsion between N poles. Attraction of N pole was greater than S pole, and inverse relation of distance for magnetic attractions were...

  • Least resistance. Penvenne, Laura Jean // Earth;Apr97, Vol. 6 Issue 2, p20 

    Discusses which part of the planet generates the magnetic field that spins the needles of compasses north. Findings of the geophysicists from Johns Hopkins University on mantel, the thick middle layer of the globe; Researches and proposal of the geophysicists about the magnetic pole.

  • Poles lose their attraction. Amodeo, Chris // Geographical (Campion Interactive Publishing);Jun2002, Vol. 74 Issue 6, p6 

    Reports on the areas of Earth identified by French and Danish scientists where the magnetic field is oriented in a different direction from usual. Description of the pull of the magnetic north pole on compasses; Expectation on the pull of the magnetic north pole by the beginning of the fourth...

  • Specific Features of the Magnetic Field�Induced Orientational Transition in EuMnO3. Kadomtseva, A. M.; Popov, Yu. F.; Vorob'ev, G. P.; Ivanov, V. Yu.; Mukhin, A. A.; Balbashov, A. M. // JETP Letters;6/10/2005, Vol. 81 Issue 11, p590 

    It is found that the spin-flop transition in EuMnO3 manganite induced by a magnetic field H parallel to the b axis is accompanied not only by a magnetization jump and magnetostriction anomalies but also by the appearance of electric polarization in the vicinity of the transition field Hcr ~ 200...

  • Mössbauer study of copper ferrite diluted by Ga3+ and Al3+ ions. Antoshina, L. G.; Evstaf'eva, E. N.; Opalenko, A. A. // Physics of the Solid State;Apr2009, Vol. 51 Issue 4, p781 

    Mössbauer spectra of the CuGa xAl2 xFe2 − 3 xO4 system ( x = 0.1, 0.2, 0.3, 0.4, 0.5) have been studied at a temperature of 295 K. The results obtained are compared with Mössbauer data for the CuGa xAl xFe2−2 xO4 system. It is established that the hyperfine magnetic fields H B...

  • Giant magnetoresistance in Mn[sub 2-x]Cu[sub x]Sb (x≤0.4) compounds. Zhang, Y. Q.; Zhang, Z. D.; Xiong, D. K.; Li, W. F.; He, J. // Journal of Applied Physics;10/1/2003, Vol. 94 Issue 7, p4726 

    Magnetic and magnetotransport properties of Mn[sub 2-x]Cu[sub x]Sb (x=0, 0.1, 0.2, and 0.4) compounds have been studied. A phase transition from a ferrimagnetic to an antiferromagnetic state occurs in the Cu-substituted compounds as the temperature is reduced. A magnetic field-driven transition...

  • Magnetic properties of NiMn-based Heusler alloys influenced by Fe atoms replacing Mn. Passamani, E. C.; Xavier, F.; Favre-Nicolin, E.; Larica, C.; Takeuchi, A. Y.; Castro, I. L.; Proveti, J. R. // Journal of Applied Physics;Feb2009, Vol. 105 Issue 3, pN.PAG 

    The influence of the Mn substitution by Fe atoms on the magnetocaloric and magnetic properties of the martensitic Ni50Mn36Sn14 Heusler-type compound has been investigated using magnetization measurements. The insertion of Fe atoms reduces the Mn-Mn AF interactions resulting in (i) a systematic...


Read the Article


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

Try another library?
Sign out of this library

Other Topics