LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 4 of total 4

Search options

  1. Article ; Online: Strain assisted magnetoelectric coupling in ordered nanomagnets of CoFe

    Ahlawat, Anju / Khan, Azam Ali / Deshmukh, Pratik / Bhartiya, Sushmita / Satapathy, S / Shirolkar, Mandar M / Wang, Haiqian / Choudhary, R J

    Journal of physics. Condensed matter : an Institute of Physics journal

    2022  Volume 34, Issue 30

    Abstract: We have explored the electric field controlled magnetization in the nanodot ... ...

    Abstract We have explored the electric field controlled magnetization in the nanodot CoFe
    Language English
    Publishing date 2022-05-30
    Publishing country England
    Document type Journal Article
    ZDB-ID 1472968-4
    ISSN 1361-648X ; 0953-8984
    ISSN (online) 1361-648X
    ISSN 0953-8984
    DOI 10.1088/1361-648X/ac6fa6
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  2. Book ; Online: Strain assisted magnetization switching in ordered nanomagnets of CoFe2O4/SrRuO3/PMNPT hetrostructures

    Ahlawat, Anju / khan, Azam Ali / Deshmukh, Pratik / Bhartiya, Sushmita / Satapathy, S. / Shirolkar, Mandar. M. / Wang, Haiqian / Choudhary, R. J.

    2022  

    Abstract: We have explored the electric field controlled magnetization in the nanodot CoFe2O4/SrRuO3/PMN-PT heterostructures. Ordered ferromagnetic CFO nanodots (~300 nm lateral dimension) are developed on the PMN-PT substrate (ferroelectric as well as ... ...

    Abstract We have explored the electric field controlled magnetization in the nanodot CoFe2O4/SrRuO3/PMN-PT heterostructures. Ordered ferromagnetic CFO nanodots (~300 nm lateral dimension) are developed on the PMN-PT substrate (ferroelectric as well as piezoelectric) using a nanostencil-mask pattering method during pulsed laser deposition. The nanostructures reveal electric field induced magnetization reversal in the single domain CFO nanodots through transfer of piezostrains from the piezoelectric PMN-PT substrate to the CFO. Further, electric field modulated spin structure of CFO nanomagnets is analysed by using X-ray magnetic circular dichroism (XMCD). The XMCD analysis reveals cations (Fe3+/Co2+) redistribution on the octahedral and tetrahedral site in the electric field poled CoFe2O4 nanodots, establishing the strain induced magneto-electric coupling effects. The CoFe2O4/SrRuO3/PMN-PT nanodots structure demonstrate multilevel switching of ME coupling coefficient ({\alpha}) by applying selective positive and negative electric fields in a non-volatile manner. The retention of two stable states of {\alpha} is illustrated for ~106 seconds, which can be employed to store the digital data in non-volatile memory devices. Thus the voltage controlled magnetization in the nanodot structures leads a path towards the invention of energy efficient high-density memory devices.

    Comment: 19 pages, 5 figures
    Keywords Condensed Matter - Materials Science
    Subject code 530
    Publishing date 2022-02-23
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  3. Book ; Online: Correlation between spin-phonon coupling and magneto-electric effects in CoFe2O4/PMN-PT nanocomposite

    Ahlawat, Anju / Khan, Azam Ali / Deshmukh, Pratik / Shirolkar, Mandar M. / Sinha, A. K. / Satapathy, S. / Sathe, V. G. / Choudhary, R. J.

    Raman Spectroscopy and XMCD study

    2022  

    Abstract: We have investigated the coupling of lattice with spin via strain interactions in the CoFe2O4/PMN-PT composite system. X-ray diffraction and Raman spectroscopic studies illustrate a remarkable modification in CoFe2O4lattice across Curie temperature (450 ... ...

    Abstract We have investigated the coupling of lattice with spin via strain interactions in the CoFe2O4/PMN-PT composite system. X-ray diffraction and Raman spectroscopic studies illustrate a remarkable modification in CoFe2O4lattice across Curie temperature (450 K) of PMN-PT. Subsequently, CoFe2O4/PMN-PT composite reveals a sudden drop in magnetic moment across Tc of PMN-PT (450 K). However,theindependent CoFe2O4phasedisplaystypical ferromagnetic behaviour across this temperature. These findings establish spin-lattice coupling owing to th interfacial strain transfer between CoFe2O4 and PMN-PT in composite. The strain intractions leads to magneto-electric coupling, evidenced by measuring magentization and magneto-electric coefficient for the electric field poled and unploed CoFe2O4/PMN-PT composite samples. X-ray magnetic circular dichroism (XMCD) analysis establishes that the cation (Fe3+/Co2+) redistribution occurs on tetrahedral and octahedral site in the electrically poled CoFe2O4/PMN-PT composite, confirming the coupling between magnetic and electric ordering in the composite. The magneto-electric coupling coefficient alpha vs dc magnetic field curves revealed hysteretic behavior and enhanced {\alpha} values after electric poling, which originates from the strain induced modifications in the magnetic domains configuration of composite in the poled samples. These findings suggest that the existence of spin lattice coupling may leads to the mechanism of strong magneto-electric effects via strain interactions in CoFe2O4/PMN-PT composite.

    Comment: 26 pages, 9 figures
    Keywords Condensed Matter - Materials Science
    Subject code 530
    Publishing date 2022-02-24
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  4. Article ; Online: Spin reorientation transition and coupled spin-lattice dynamics of Sm

    Khan, Azam Ali / Ahlawat, Anju / Sharma, A / Deshmukh, Pratik / Singh, M N / Sagdeo, Archna / Sathe, Vasant / Karnal, A K / Satapathy, S

    Journal of physics. Condensed matter : an Institute of Physics journal

    2020  Volume 32, Issue 40

    Abstract: In this work, we have presented a solid-solution of ... ...

    Abstract In this work, we have presented a solid-solution of Sm
    Language English
    Publishing date 2020-07-08
    Publishing country England
    Document type Journal Article
    ZDB-ID 1472968-4
    ISSN 1361-648X ; 0953-8984
    ISSN (online) 1361-648X
    ISSN 0953-8984
    DOI 10.1088/1361-648X/ab9d4e
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

To top