Multiferroic GaN nanofilms grown within Na-4 mica channels

被引:17
|
作者
Bhattacharya, Santanu
Datta, A.
Chakravorty, D. [1 ]
机构
[1] Indian Assoc Cultivat Sci, DST Unit Nanosci, Kolkata 700032, India
关键词
ferromagnetism; gallium compounds; III-V semiconductors; magnetoelectric effects; magnetostriction; multiferroics; nanofabrication; nanostructured materials; permittivity; wide band gap semiconductors; FERROELECTRICITY; MANGANITE; FILMS;
D O I
10.1063/1.3340897
中图分类号
O59 [应用物理学];
学科分类号
摘要
Gallium nitride nanofilms grown within nanochannels of Na-4 mica structure, exhibit ferromagnetism even at room temperature due to the presence of gallium vacancies at the surfaces of the nanofilms. These nanofilms also show a ferroelectric behavior at room temperature ascribed to a small distortion in the crystal structure of GaN due to its growth within the Na-4 mica nanochannels. A colossal increase in 338% in dielectric constant was observed for an applied magnetic field of 26 kOe. The magnetoelectric effect is ascribed to magnetostriction of magnetic GaN phase.
引用
收藏
页数:3
相关论文
共 14 条
  • [1] Multiferroic properties of NiS nanoplates grown within Na-4 mica
    Mandal, Amrita
    Bose, Anindita
    Mitra, Sreemanta
    Datta, Anindya
    Banerjee, Sourish
    Chakravorty, Dipankar
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2012, 324 (18) : 2861 - 2865
  • [2] Magnetodielectric effect in CdS nanosheets grown within Na-4 mica
    Mandal, Amrita
    Mitra, Sreemanta
    Datta, Anindya
    Banerjee, Sourish
    Chakravorty, Dipankar
    JOURNAL OF APPLIED PHYSICS, 2012, 111 (07)
  • [3] Piezomagnetic behaviour in α-Fe2O3 nanofilms grown within nanochannels of Na-4 mica
    Maiti, Ramaprasad
    Chatterjee, Soumi
    Saha, Shyamal Kumar
    Mitra, Manoj Kumar
    Chakravorty, Dipankar
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2016, 402 : 64 - 68
  • [4] Magnetodielectric effect in CdS nanosheets grown within Na-4 mica
    Chakravorty, D. (mlsdc@iacs.res.in), 1600, American Institute of Physics Inc. (111):
  • [5] Metallic behavior of copper sulfide nanowires grown within Na-4 mica
    Mukherjee, Pijush Kanti
    Bose, Anindita
    Chakravorty, Dipankar
    APPLIED PHYSICS LETTERS, 2006, 89 (03)
  • [6] Magnetodielectric properties of nanodisc bismuth ferrite grown within Na-4 mica nanochannels
    Hajra, Partha
    Pal, Mrinal
    Datta, Anindya
    Chakravorty, Dipankar
    Meriakri, Vyacheslav
    Parkhomenko, Michael
    JOURNAL OF APPLIED PHYSICS, 2010, 108 (11)
  • [7] Multiphonon scattering and photoluminescence of two dimensional ZnS nanosheets grown within Na-4 mica
    Mandal, Amrita
    Mitra, Sreemanta
    Datta, Anindya
    Banerjee, Sourish
    Dhara, Sandip
    Chakravorty, Dipankar
    JOURNAL OF APPLIED PHYSICS, 2012, 112 (07)
  • [8] Growth of two-dimensional GaN in Na-4 mica nanochannels
    Bhattacharya, Santanu
    Datta, Anindya
    Dhara, Sandip
    Chakravorty, Dipankar
    JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2009, 42 (23)
  • [9] Growth of CdS nanowires using Na-4 mica as template
    Mukherjee, PK
    Chakravorty, D
    JOURNAL OF APPLIED PHYSICS, 2004, 95 (06) : 3164 - 3169
  • [10] Enhanced magnetic anisotropy of nickel nanosheet prepared in Na-4 mica
    Mitra, Sreemanta
    Mandal, Amrita
    Datta, Anindya
    Banerjee, Sourish
    Chakrayorty, Dipankar
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2012, 324 (16) : 2452 - 2457