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Ferromagnetic Resonance in II-VI Diluted Magnetic Semiconductor, ZnxTM1-xO Nanostructures

Gizachew Diga


The ferromagnetic resonance in II-VI diluted magnetic semiconductor Zn1 xMnxO was studied theoretically. The model employed to manipulate the Hamiltonian of the system which is the Heisenberg Model. By considering a cloud of electron gas and employing equation of state, the fractions of demagnetization factors was determined. For FMR probes, the sample magnetization results from the magnetic moments of dipolar-coupled but unpaired electrons. The resulting frequency versus magnetization curve is downward parabolic curves which are sharper at tips. This side width sharpening is due to ferromagnetic spin confinement with increasing magnetic ion (Mn2+) concentration. Basic parameters contributing for the resonance formation is dealt with. The angular and magnetic field dependence of resonance frequency is investigated. From the ferromagnetic resonance study, the potential application of Zn1-xMnxO in medical imaging technique will be explored. It is expected that the ferromagnetic absorption frequency is directly proportional to the magnetic flux density B⃗ . Besides, the thermodynamic relation between magnetization and temperature is determined by analysing the Helmholtz free energy. From ferromagnetic resonance studies, it is possible to reveal that Zn1-xMnxO nanoparticles exhibit ferromagnetic behaviour. Determination of properties related with ferromagnetism, typical giant magnetoresistance reveals the potential applications of Zn1-xMnxO nanoparticles medical imaging, nanosensors, biomarkers, magnetic random access memory (MRM) and dynamic random access memory (DRM).


Biomarkers, demagnetization factors, dynamic and magnetic random access memory, ferromagnetic resonance, flux density, giant magnetoresistance, medical imaging, nanosensors

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M Naeem, SK Hasanain, A Mumtaz. Electrical transport and optical studies of ferromagnetic cobalt doped ZnO nanoparticles exhibiting a metal–insulator transition. J. Phys. Condens. Matter. 2008; 20(2): 025210.

M Banda. AC susceptibility studies of phase transitions and magnetic relaxation: Conventional, molecular and low dimensional magnets. Physics Acta Physica Polonica. 2013; 124. DOI:10.12693/APHYSPOLA.124.964.

Ochsenbein et al. Charge-controlled magnetism in colloidal doped semiconductor nanocrystals Nature nanotechnology. 2009; 4(10): 681–687.

NT Nguyen. Micro magneto fluidics interactions between magnetism and fluid flow on the microscale. Verlag. 2012. DOI 10.1007/s10404-011-0903-5.

AV Sokolov. Broadband FMR linewidth measurement by a micro strip line transmission resonator. Appl. Phys. Lett. 2016; 108: 172408.

Yalçın O. Ferromagnetic Resonance: Theory and Applications. BoD Books on Demand; 2013.

C Kittel. Ferromagnetic resonance. J. Phys. Radium. 1951; 12(3): 291–302.

David J Griffith. Introduction to Electrodynamics. 3rd ed. 1999.

SY Koshihara et al. Ferromagnetic order induced by photogenerated carriers in magnetic III-V semiconductor heterostructures of (In, Mn) As/GaSb. Phys Rev Lett. 1997; 78(24): 4617–4620.

Peter Fisher et al. Launching a new dimension with 3D magnetic nanostructures. J.Appl. Mater. 2020; 8: 010701.

C Kittel. Theory of the structure of ferromagnetic domains in films and small particles. Phy. Rev. 1946; 70(11–12): 965–971.

William Coffey, Yuri P Kalmykov. Thermal fluctuations of magnetic nanoparticles: Fifty years after Brown. J. App. Phys. 2012; 112: 121301.

Cristina Buzea et al. Nanomaterials and nanoparticles: Sources and toxicty. Biointerphases. 2007; 2(4): MR17–MR71.

Horikoshi Satoshi, Serpone Nick. Introduction to nanoparticles. Microwaves in nanoparticle synthesis: Fundamentals and applications. Wiley; 2013. pp. 1–24.

Chan Oeurn Chey. Synthesis of ZnO and transition metals doped ZnO nanostructures, their characterization and sensing applications. 2015. SE601–674.

Min Hua Zhao et al. Piezoelectric characterization of individual zinc oxide nanobelt probed by piezoresponse force microscope. Nano. Lett. 2004; 4(4): 587–590.

L Zha et al. A novel strategy for the fabrication of high-performance nanostructured Ce-Fe-B magnetic materials via electron-beam exposure. Matt. Sci. 2021; 64(10): 1–11.

C Lee Ventola. The nanomedicine revolution: Part 2: current and future clinical applications. P&T. 2012; 37(10): 582–591.

C Scherer, AM Figueiredo Neto. Ferrofluids properties and applications. Brazilian J. Phy. 2005; 35(3A).

Kosal M. The need to foster revolutionary science. In: Nanotechnology for Chemical and Biological Defense. New York, NY: Springer; 2009. pp. 121–133.

Zha L, Kim C, Yun C, Zhou D, Li W, Kong X, Han L, Yang W, Liu S, Han J, Wang C. A novel strategy for the fabrication of high-performance nanostructured Ce-Fe-B magnetic materials via electron-beam exposure. Sci China Mater. 2021; 64(10): 1–11.

F Matsukura, BH Ohno, T Dietl. III-V Ferromagnetic Semiconductors. In: KHJ Buschow (ed.) Handbook of Magnetic Materials vol. 14. Amsterdam: Elsevier; 2002. pp. 1–87.

R Janish, Priya Gopal. Transition metal doped TiO2 and ZnO: Present status of field. J. Phys. Con. Matt. 2005. July 2005; 17(27). DOI: 10.1088/ 0953-8984/17/27/R01.

Simpson DA, Ryan RG, Hall LT, Panchenko E, Drew SC, Petrou S, Donnelly PS, Mulvaney P, Hollenberg LC. Quantum magnetic resonance microscopy. arXiv preprint. 2017; arXiv: 1702.04418.

Sergey Manuilov. FMR in films with growth induced anisotropy. Sweden: Royal Institute of Technology; 2011.

KR Kittilstved, NS Nordberg, DR Gamelin. Chemical manipulation of high- T C Ferromagnetism in ZnO diluted magnetic semiconductors. Phys. Rev. Lett. 2005; 94: 147209.

AM Schimpf et al. Charge state Control of Mn2+ spin relaxation dynamics in colloidal n type Zn1−xMnxO, nanocrystals. J. Phy.chem. Lett. 2015; 6: 1748–1753.

Liu et al. Computational modeling of nanoparticles targeted drug delivery. Rev Nanosci. & Nanotech. 2012; 1: 66–83.

Russek, Stephen E., et al. "Magnetostriction and angular dependence of ferromagnetic resonance linewidth in Tb-doped Ni 0.8 Fe 0.2 thin films." Journal of applied physics 91.10 (2002): 8659-8661.

Michal Stano, Olivier Fruchart. Magnetic nanowires, and nanotubes. North Holland; 2018. pp. 155–267.

Saritha Nellutla et al. Multi-frequency FM investigation of nickel nanotubes encapsulated in diamagnetic magnesium oxide matrix. J. App. Phy. NC. 2014; 27695.

Bedanta, S., et al. "Magnetic nanoparticles: a subject for both fundamental research and applications." Journal of nanomaterials 2013 (2013).

Klaus Baberschke. Ferromagnetic resonance in nanostructures, rediscovering its roots in paramagnetic resonance. J. Phys. Conf. Ser. 2011; 324: 012011.

Marie Hervé et al. Towards laterally resolved FMR with spin-polarized scanning tunneling microscopy. Nanomaterials. 2019; 9(6): 827.

Pelangi Eka Yuwita et al. Structural, optical, and magnetic properties of Mn doped ZnO nanoparticles. IOP Conference Series. Materials Science and Engineering. 2019; 515(1): 012065.

T Iqbal et al. Influence of manganese on structural, dielectric and magnetic properties of ZnO nanoparticles. J. Nanomaterials and Biostructures. 2016; 11(3): 899–908.

Mauricio Cattaneo. Monte-Carlo simulation studies on the super spin structure of 3D Nanoparticle Supercrystals. 2018.

Sato et al. First-principles theory of dilute magnetic semiconductor. American Phys. Society Rev. Mod. Phys. 2010; 82: 1633.

Steven H Simon. Solid State Physics. United Kingdom; 2012.

K Trohidou, M Vasilakaki. Monte Carlo studies of magnetic nanoparticles; 2010.

E Chikoidze et al. Effect of oxygen annealing on the Mn2+ properties of ZnMnO. Journal of Magnetism and Magnetic Material. 2007; 316: e181–e184.

Michael Farle. Ferromagnetic resonance of ultrathin metallic layer. Berlin, Germany: IOP; 1999.

K Sato, H Katayama-Yoshida. Material design for transparent ferromagnets with ZnO based magnetic semiconductors. Jpn J. Appl. Phys. 2000; 39: L555–L558.

Toyoda M, Akai H, Sato K, Katayama‐Yoshida H. Curie temperature of GaMnN and GaMnAs from LDA‐SIC electronic structure calculations. Physica Status Solidi C. 2006; 3(12): 4155– 4159.

B Lasley Hunter et al. Ferromagnetic resonance studies in ZnMnO DMS. J .App. Phys. 2006.DOI: 10.1063/1.2172218.

Sahitya V et al. Increased static dielectric constant in ZnMnO and ZnCoO thin films with bound magnetic polarons. 2020; 10: 6698.

GS Kupriyanova, AN Orlova. Simulation of the FMR Line shape. Physics Procedia. 2016; 82:32–37.

TY Feng et al. Oxide magnetic semiconductors: Materials, properties, and devices. Chin. Phys. B.2013; 22(8): 088505.

SS Kalarickal et al. Ferromagnetic resonance linewidth in metallic thin films: Comparison of measurement methods. J Appl Phys. 2006; 99(9): 093909.

Luo et al. Ferromagnetic ordering in Mn-doped ZnO nanoparticles. Nanoscale Research Letters. 2014; 9: 625.

Sangita S et al. FMR line width in metallic thin films: Comparison of measurement methods. J. App. Phy. 2006; 99: 093909.

AK Pradhan et al. Oxide-based dilute ferromagnetic semiconductors: ZnMnO and Co:TiO2. J. Appl. Phys. 2006; 99(8): 08M108.

AN Orlova. Magnetism focus on biomedical aspects. Kalin Physics Procedia. 2016; 82: 32–37.

VA Ignatchenko, VA Felk. Exchange narrowing of magnetic resonance linewidths in inhomogeneous ferromagnets. Physics Rev B. 2005; 75: 029901.

Ivan Nekrashevich, Dmitri Litvinov. FMR in coupled magnetic nanostructured. AIP Advances. 2018; 8(8).


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