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.
机构:
Jadavpur Univ, Sch Mat Sci & Nanotechnol, Kolkata 700032, India
Indian Assoc Cultivat Sci, MLS Prof Unit, Kolkata 700032, IndiaJadavpur Univ, Sch Mat Sci & Nanotechnol, Kolkata 700032, India
Maiti, Ramaprasad
Chatterjee, Soumi
论文数: 0引用数: 0
h-index: 0
机构:
Indian Assoc Cultivat Sci, MLS Prof Unit, Kolkata 700032, India
Indian Assoc Cultivat Sci, Dept Mat Sci, Kolkata 700032, IndiaJadavpur Univ, Sch Mat Sci & Nanotechnol, Kolkata 700032, India
Chatterjee, Soumi
Saha, Shyamal Kumar
论文数: 0引用数: 0
h-index: 0
机构:
Indian Assoc Cultivat Sci, Dept Mat Sci, Kolkata 700032, IndiaJadavpur Univ, Sch Mat Sci & Nanotechnol, Kolkata 700032, India
Saha, Shyamal Kumar
Mitra, Manoj Kumar
论文数: 0引用数: 0
h-index: 0
机构:
Jadavpur Univ, Dept Met & Mat Engn, Kolkata 700032, IndiaJadavpur Univ, Sch Mat Sci & Nanotechnol, Kolkata 700032, India
Mitra, Manoj Kumar
Chakravorty, Dipankar
论文数: 0引用数: 0
h-index: 0
机构:
Indian Assoc Cultivat Sci, MLS Prof Unit, Kolkata 700032, IndiaJadavpur Univ, Sch Mat Sci & Nanotechnol, Kolkata 700032, India
机构:
Indian Assoc Cultivat Sci, DST Unit Nanosci, Kolkata 700032, IndiaIndian Assoc Cultivat Sci, DST Unit Nanosci, Kolkata 700032, India
Hajra, Partha
Pal, Mrinal
论文数: 0引用数: 0
h-index: 0
机构:
Cent Mech Engn Res Inst, Ctr Adv Mat Proc, Durgapur 713209, IndiaIndian Assoc Cultivat Sci, DST Unit Nanosci, Kolkata 700032, India
Pal, Mrinal
Datta, Anindya
论文数: 0引用数: 0
h-index: 0
机构:
Indian Assoc Cultivat Sci, DST Unit Nanosci, Kolkata 700032, India
Indian Assoc Cultivat Sci, Ctr Nanotechnol Photovolta & Sensor Devices, Kolkata 700032, India
Guru Govind Singh Indraprastha Univ, USBAS, New Delhi, IndiaIndian Assoc Cultivat Sci, DST Unit Nanosci, Kolkata 700032, India
Datta, Anindya
Chakravorty, Dipankar
论文数: 0引用数: 0
h-index: 0
机构:
Indian Assoc Cultivat Sci, DST Unit Nanosci, Kolkata 700032, India
Indian Assoc Cultivat Sci, MLS Unit, Kolkata 700032, IndiaIndian Assoc Cultivat Sci, DST Unit Nanosci, Kolkata 700032, India
Chakravorty, Dipankar
Meriakri, Vyacheslav
论文数: 0引用数: 0
h-index: 0
机构:
Russian Acad Sci, Kotelnikov Inst Radio Engn & Elect, Fryazino 141190, Moscow Region, RussiaIndian Assoc Cultivat Sci, DST Unit Nanosci, Kolkata 700032, India
Meriakri, Vyacheslav
Parkhomenko, Michael
论文数: 0引用数: 0
h-index: 0
机构:
Russian Acad Sci, Kotelnikov Inst Radio Engn & Elect, Fryazino 141190, Moscow Region, RussiaIndian Assoc Cultivat Sci, DST Unit Nanosci, Kolkata 700032, India
机构:
Indian Assoc Cultivat Sci, MLS Prof Unit, Kolkata 700032, India
Univ Calcutta, Dept Phys, Kolkata 700009, IndiaIndira Gandhi Ctr Atom Res, Surface & Nanosci Div, Kalpakkam 603102, Tamil Nadu, India
Mandal, Amrita
Mitra, Sreemanta
论文数: 0引用数: 0
h-index: 0
机构:
Indian Assoc Cultivat Sci, MLS Prof Unit, Kolkata 700032, India
Univ Calcutta, Dept Phys, Kolkata 700009, IndiaIndira Gandhi Ctr Atom Res, Surface & Nanosci Div, Kalpakkam 603102, Tamil Nadu, India
Mitra, Sreemanta
论文数: 引用数:
h-index:
机构:
Datta, Anindya
Banerjee, Sourish
论文数: 0引用数: 0
h-index: 0
机构:
Univ Calcutta, Dept Phys, Kolkata 700009, IndiaIndira Gandhi Ctr Atom Res, Surface & Nanosci Div, Kalpakkam 603102, Tamil Nadu, India
Banerjee, Sourish
Dhara, Sandip
论文数: 0引用数: 0
h-index: 0
机构:
Indira Gandhi Ctr Atom Res, Surface & Nanosci Div, Kalpakkam 603102, Tamil Nadu, IndiaIndira Gandhi Ctr Atom Res, Surface & Nanosci Div, Kalpakkam 603102, Tamil Nadu, India
Dhara, Sandip
Chakravorty, Dipankar
论文数: 0引用数: 0
h-index: 0
机构:
Indian Assoc Cultivat Sci, MLS Prof Unit, Kolkata 700032, IndiaIndira Gandhi Ctr Atom Res, Surface & Nanosci Div, Kalpakkam 603102, Tamil Nadu, India