Rao, GSN; Caltun, OF; Rao, KH; Rao, BP; Hamdeh, HH, Compositional Dependence of Magnetostrictive Properties of Cobalt Ferrite, AIP CONF PROC, vol. 1347, pp. 293-296, (2010) 10.1063/1.3601839
Boutiuc, LM; Dumitru, I; Caltun, OF; Feder, M; Vilceanu, V, Coprecipitated Cobalt Ferrite for Sensors, SENSOR LETT, vol. 7(3), pp. 244-246, (2009) 10.1166/SL.2009.1067
Feder, M; Diamandescu, L; Bibicu, I; Caltun, OF; Dumitru, I; Boutiuc, L; Chiriac, H; Lupu, N; Vilceanu, V; Vilceanu, M, Comparative Study on the Microstructural and Magnetic Properties of Cobalt Ferrites Synthesized by Ceramic and Oxidation Wet Methods, IEEE T MAGN, vol. 44(11), pp. 2936-2939, (2008) 10.1109/TMAG.2008.2002200
Caltun, O; Dumitru, I; Feder, M; Lupu, N; Chiriac, H, Substituted cobalt ferrites for sensors applications, J MAGN MAGN MATER, vol. 320(20), pp. E869-E873, (2008) 10.1016/J.JMMM.2008.04.067
Caltun, O; Dumitru, I; Feder, M; Diamandescu, L; Bibicu, I; Vasiliu, F; Lupu, N; Vilceanu, V, The influence of chemical composition on magnetic properties and magnetostriction coefficient of cobalt ferrites, J OPTOELECTRON ADV M, vol. 10(7), pp. 1775-1778, (2008)
Palamaru, MN; Iordan, AR; Aruxandei, CD; Gorodea, IA; Perianu, EA; Dumitru, I; Feder, M; Caltun, OF, The synthesis of doped manganese cobalt ferrites by auto combustion technique, J OPTOELECTRON ADV M, vol. 10(7), pp. 1853-1856, (2008)
Rani, VS; Caltun, OF; Yoon, SS; Rao, BP; Kima, C, Ultra high density nanopore arrays using self assembled diblock copolymer, J OPTOELECTRON ADV M, vol. 10(7), pp. 1877-1880, (2008)
Rao, BP; Kumar, SA; Caltun, OF; Kim, C, Dependence of exchange bias field and coercivity on spacer layer thickness in FeMn/NiFe/Cu/NiFe spin valve structures, J OPTOELECTRON ADV M, vol. 10(7), pp. 1881-1884, (2008)
Rao, BP; Caltun, OF; Kim, C, Low temperature chemical synthesis of Ni-Zn ferrite nanoparticles, J OPTOELECTRON ADV M, vol. 10(7), pp. 1885-1888, (2008)
Rao, GSN; Caltun, OF; Rao, KH; Rao, BP; Gupta, A; Rao, SNR; Kumar, AM, Mossbauer and magnetic study of silicon substituted cobalt ferrite, HYPERFINE INTERACT, vol. 184(1-3), pp. 51-55, (2008) 10.1007/S10751-008-9801-Y
Rao, GSN; Caltun, OF; Rao, KH; Rao, BP; Wamocha, HL; Hamdeh, HH, Influence of silicon and cobalt substitutions on magnetostriction coefficient of cobalt ferrite, HYPERFINE INTERACT, vol. 184(1-3), pp. 179-184, (2008) 10.1007/S10751-008-9786-6
Rao, GSN; Caltun, OF; Rao, KH; Rao, BP; Warnocha, HL; Haindeh, HH, Enhanced strain derivative of Mn/Si substituted cobalt ferrite, AIP CONF PROC, vol. 1003, pp. 181-183, (2008)
Caltun, O; Rao, GSN; Rao, KH; Rao, BP; Dumitru, I; Kim, CO; Kim, C, The influence of Mn doping level on magnetostriction coefficient of cobalt ferrite, J MAGN MAGN MATER, vol. 316(2), pp. E618-E620, (2007) 10.1016/J.JMMM.2007.03.045
Rao, BP; Kim, CO; Kim, CG; Caltun, OF, X-ray and magnetic properties of manganese substituted Ni-Zn ferrites, J OPTOELECTRON ADV M, vol. 9(4), pp. 1143-1146, (2007)
Rao, BP; Kim, CO; Kim, CG; Caltun, OF, Analysis of power loss in vanadium doped nickel-zinc ferrites, J OPTOELECTRON ADV M, vol. 9(4), pp. 1151-1154, (2007)
Caltun, OF; Hsu, LS, Thin ferrite films deposited by PLD on silicon substrate, J OPTOELECTRON ADV M, vol. 9(4), pp. 1155-1157, (2007)
Caltun, O; Chiriac, H; Lupu, N; Dumitru, I; Rao, BP, High magnetostrictive doped cobalt ferrite, J OPTOELECTRON ADV M, vol. 9(4), pp. 1158-1160, (2007)
Rao, BP; Caltun, O; Cho, WS; Kim, CO; Kim, C, Synthesis and characterization of mixed ferrite nanoparticles, J MAGN MAGN MATER, vol. 310(2), pp. E812-E814, (2007) 10.1016/J.MMM.2006.10.771
Caltun, OF; Rao, GSN; Rao, KH; Rao, BP; Kim, C; Kim, CO; Dumitru, I; Lupu, N; Chiriac, H, High magnetostrictive cobalt ferrite for sensor applications, SENS LETT, vol. 5(1), pp. 45-47, (2007) 10.1166/SL.2007.027
Rao, GSN; Ananda, KS; Rao, KH; Parvatheeswara, RB; Gupta, A; Caltun, O; Dumitru, I; Kim, C, Doped cobalt ferrites for stress sensor applications, , vol. , pp. 961-964, (2007)
Constantin, LV; Caltun, OF, E-Learning and E-Pedagogy in now days, PROC INT C VIRTUAL L, vol. , pp. 219-226, (2007)
Rao, BP; Kim, CO; Kim, C; Dumitru, I; Spinu, L; Caltun, OF, Structural and magnetic characterizations of coprecipitated Ni-Zn and Mn-Zn ferrite nanoparticles, IEEE T MAGN, vol. 42(10), pp. 2858-2860, (2006) 10.1109/TMAG.2006.879901
Rao, BP; Kumar, AM; Rao, KH; Murthy, YLN; Caltun, OF; Dumitru, I; Spinu, L, Synthesis and magnetic studies of Ni-Zn ferrite nanoparticles, J OPTOELECTRON ADV M, vol. 8(5), pp. 1703-1705, (2006)
Rao, BP; Caltun, O; Dumitru, I; Spinu, L, Complex permeability spectra of Ni-Zn ferrites doped with V(2)O(5)/Nb(2)O(5), J MAGN MAGN MATER, vol. 304(2), pp. E749-E751, (2006) 10.1016/J.JMMM.2006.02.270
Rao, BP; Caltun, O; Dumitru, I; Spinu, L, Ferromagnetic resonance parameters of ball-milled Ni-Zn ferrite nanoparticles, J MAGN MAGN MATER, vol. 304(2), pp. E752-E754, (2006) 10.1016/J.JMMM.2006.02.271
Rao, BP; Caltun, OF, Synthesis and characterization of some ferrite nanoparticles, J OPTOELECTRON ADV M, vol. 8(3), pp. 991-994, (2006)
Rao, BP; Caltun, OF, Microstructure and magnetic behaviour of Ni-Zn-Co ferrites, J OPTOELECTRON ADV M, vol. 8(3), pp. 995-997, (2006)
Rao, BP; Rao, KH; Rao, PSVS; Kumar, AM; Murthy, YLN; Asokan, K; Kumar, VVS; Kumar, R; Gajbhiye, NS; Caltun, OF, Swift heavy ions irradiation studies on some ferrite nanoparticles, NUCL INSTRUM METH B, vol. 244(1), pp. 27-30, (2006) 10.1016/J.NIMB.2005.11.009
Andrei, P; Caltun, O; Stancu, A, Rate dependence of first-order reversal curves by using a dynamic Preisach model of hysteresis, PHYSICA B, vol. 372(1-2), pp. 265-268, (2006) 10.1016/J.PHYSB.2005.10.063
Rao, BP; Rao, KH; Sankaranarayana, G; Paduraru, A; Caltun, OF, Influence of V2O5 additions on the resistivity and dielectric properties of Nickel-Zinc ferrites, J OPTOELECTRON ADV M, vol. 7(2), pp. 697-700, (2005)
Rao, BP; Rao, KH; Rao, TV; Paduraru, A; Caltun, OF, DC resistivity and dielectric studies on Ti4+ substituted Ni-Zn ferrites, J OPTOELECTRON ADV M, vol. 7(2), pp. 701-704, (2005)
Caltun, OF, Pulsed laser deposition of Ni-Zn ferrite thin films, J OPTOELECTRON ADV M, vol. 7(2), pp. 739-744, (2005)
Caltun, OF; Feder, M; Vilceanu, V, Microstructure, electrical and magnetic properties of high permeability MnZn ferrite with Bi2O3 additions, , vol. , pp. 251-256, (2005)
Rao, KH; Rao, BP; Asokan, K; Caltun, OF, Effect of indium substitution on the properties of Ni-Zn and Ni-Zn-Ti ferrites, , vol. , pp. 365-369, (2005)
Caltun, OF, Pulsed laser deposition of NiFe2O4 thin films, J OPTOELECTRON ADV M, vol. 6(3), pp. 935-938, (2004)
Rao, BP; Rao, KH; Trinadh, K; Caltun, OF, Dielectric behaviour of niobium doped Ni-Zn-ferrites, J OPTOELECTRON ADV M, vol. 6(3), pp. 951-954, (2004)
Caltun, O; Feder, M; Liu, CJ, Polycrystalline Ni, Zn and Ni-Zn ferrite targets for plasma laser deposition technique, J OPTOELECTRON ADV M, vol. 6(3), pp. 955-958, (2004)
Rao, BP; Rao, KH; Asokan, K; Caltun, OF, Influence of titanium substitutions on the magnetic properties of Ni-Zn ferrites, J OPTOELECTRON ADV M, vol. 6(3), pp. 959-962, (2004)
Viswanathan, C; Gopal, S; Mangalaraj, D; Narayandass, SK; Caltun, OF; Rusu, G; Yi, JS, Characterization of vacuum evaporated In-Se thin films, IONICS, vol. 10(3-4), pp. 311-316, (2004) 10.1007/BF02382837
Paduraru, A; Feder, M; Caltun, O, Magnetic properties of some perminvar ferrites, J OPTOELECTRON ADV M, vol. 5(4), pp. 945-949, (2003)
Fecioru-Morariu, M; Paduraru, A; Caltun, O, The influence of the frequency and waveform on the hysteresis loop of some NiZnCu ferrites, J OPTOELECTRON ADV M, vol. 5(4), pp. 985-990, (2003)
Caltun, OF, Fourier transform of signal induced in circuits with soft ferrite cores, SPIE Proceeding, vol. , pp. 665-668, (2003)
Caltun, OF; Spinu, L; Stancu, A, Structure and magnetic properties of Ni-Zn-Cu ferrites sintered at different temperatures, J OPTOELECTRON ADV M, vol. 4(2), pp. 337-340, (2002)
Caltun, OF; Spinu, L; Stancu, A; Thung, LD; Zhou, W, Study of the microstructure and of the permeability spectra of Ni-Zn-Cu ferrites, J MAGN MAGN MATER, vol. 242, pp. 160-162, art.no. PII S0304-8853(01)01187-8, (2002) 10.1016/S0304-8853(01)01187-8
Caltun, OF; Spinu, L; Stancu, A, Magnetic properties of high frequency Ni-Zn ferrites doped with CuO, IEEE T MAGN, vol. 37(4), pp. 2353-2355, (2001) 10.1109/20.951170
Caltun, OF; Spinu, L; Stancu, A; Sava, A, Modeling the complex permeability spectra of Ni-Zn ferrite, INT J APPL ELECTROM, vol. 13(1-4), pp. 241-244, (2001)
Caltun, OF; Andrei, P; Stancu, A, Modeling the temperature dependence of magnetization processes in soft ferrite cores, INT J APPL ELECTROM, vol. 13(1-4), pp. 335-338, (2001)
Caltun, O; Stancu, A; Papusoi, C; Andrei, P, On the distortion in a RL circuit with pine-grained Mn-Zn ferrite cores, , vol. , pp. 31-34, (2000)
Andrei, P; Stancu, A; Caltun, OF, Reversible and irreversible magnetisation in phenomenological models of hysteresis, , vol. , pp. 129-132, (2000)
Caltun, O; Papusoi, C; Stancu, A; Andrei, P, ME sensor based on electron diffusion in low electric resistive ferrites, , vol. , pp. 637-640, (2000)
Andrei, P; Caltun, OF; Papusoi, C; Stancu, A; Feder, M, Losses and magnetic properties of Bi2O3 doped MnZn ferrites, J MAGN MAGN MATER, vol. 196, pp. 362-364, (1999) 10.1016/S0304-8853(98)00750-1
Feder, M; Vilceanu, VM; Teoharie, N; Segal, E; Caltun, O; Cosmeleata, G, Sintering of MnZn ferrite in the presence of Bi2O3 phase, , vol. , pp. 445-452, (1999)
Andrei, P; Stancu, A; Caltun, O, Differential Preisach model for the description of dynamic magnetization processes, J APPL PHYS, vol. 83(11), pp. 6359-6361, (1998) 10.1063/1.367688
Andrei, P; Caltun, O; Stancu, A, Differential phenomenological models for the magnetization processes in soft MnZn ferrites, IEEE T MAGN, vol. 34(1), pp. 231-241, (1998) 10.1109/20.650244
Stancu, A; Andrei, P; Caltun, O, Simulation of non-linear inductor circuits in phenomenological models, STUD APPL ELECTROMAG, vol. 13, pp. 503-506, (1998)
Caltun, O; Spinu, L; Andrei, P; Stancu, A, Fundamental frequency influence on harmonic content of circular Barkhausen effect induced signal, STUD APPL ELECTROMAG, vol. 13, pp. 547-550, (1998)
Caltun, O; Papusoi, C; Stancu, A; Andrei, P; Kappel, W, Magnetic cores diagnosis, STUD APPL ELECTROMAG, vol. 13, pp. 594-597, (1998)
Caltun, O; Spinu, L; Stancu, A, Tension and torsion magnetic sensors based on frequency harmonic content analysis of induced signal in perpendicular fields, SENSOR ACTUAT A-PHYS, vol. 59(1-3), pp. 142-148, (1997) 10.1016/S0924-4247(97)80164-1
Stancu, A; Caltun, O; Andrei, P, Models of hysteresis in magnetic cores, J PHYS IV, vol. 7(C1), pp. 209-210, (1997) 10.1051/JP4:1997179