Publications and Patents


Publications

Effect of Fractal Topology on the Resistivity Response of Thin Film Sensors.
Gregory Kopnov, Das Sudhansu Sekhar and Alexander Gerber Sensors 23, 5, 2409 (2023)

Tuning the coercivity of ferromagnetic films with perpendicular anisotropy by thickness, width, and profile.
Gregory Kopnov and Alexander Gerber Appl. Phys. Lett. 120, 18, 182401 (2022)

Resistivity Testing of Palladium Dilution Limits in CoPd Alloys for Hydrogen Storage
Das Sudhansu Sekhar,Gregory Kopnov and Alexander Gerber MATERIALS 15, 1, 111 (2022)

Non-reciprocal magnetoresistance, directional inhomogeneity and mixed symmetry Hall devices
Gregory Kopnov and Alexander Gerber Appl. Phys. Lett. 119, 102405 (2021)

Kinetics of the Lattice Response to Hydrogen Absorption in Thin Pd and CoPd Films
Sudhansu S. Das, Gregory Kopnov and Alexander Gerber MOLECULES 25, 16, 3597 (2020)

Positive vs negative resistance response to hydrogenation in palladium and its alloys
Sudhansu S. Das, Gregory Kopnov and Alexander Gerber AIP Advances 10, 6, 065129 (2020)

High mobility conducting channel at semi-insulating GaAs–metal oxide interfaces
Gregory Kopnov and Alexander Gerber Journal of Applied Physics 127, 175302 (2020)

Peculiar longitudinal and transverse magnetoresistance in films with tilted out-of-plane magnetic anisotropy
Noga Eden, Gregory Kopnov, Shachar Fraenkel, Moshe Goldstein, and Alexander Gerber, Phys. Rev. B (2019)

Interpretation of experimental evidence of the topological Hall effect
A. Gerber, Phys. Rev. B 98, 214440 (2018)

Detection of hydrogen by the extraordinary Hall effect in CoPd alloys
Sudhansu. S. Das, G. Kopnov, and A. Gerber, Journal of Applied Physics 124, 104502 (2018)

Hall effect spintronics for gas detection
A. Gerber, G. Kopnov, M. Karpovski, APPLIED PHYSICS LETTERS, 111, 143505 (2017)

Scaling of the Hall effects beyond the quantum resistance threshold in oxidized CoFeB
A. Gerber and G. Kopnov Phys. Rev. B 95, 214206 (2017)

Extraordinary Hall-effect in colloidal magnetic nanoparticle films
L. Ben Gur, E. Tirosh, A. Segal, G. Markovich, A. Gerber Journal of Magnetism and Magnetic Materials 426, 178 (2017)

MegaOhm extraordinary Hall effect in oxidized CoFeB
G. Kopnov and A. Gerber Appl. Phys. Lett. 109, 022404 (2016)

Probing Co/Pd interfacial alloying by the extraordinary Hall effect
G. Winer, A. Segal, M. Karpovski, V. Shelukhin, and A. Gerber JOURNAL OF APPLIED PHYSICS 118,173901 (2015)

Absence of the ordinary and extraordinary Hall effects scaling in granular ferromagnets at metal-insulator transition
D. Bartov, A. Segal, M. Karpovski, and A. Gerber, Phys. Rev. B 90, 144423 (2014)

Components of strong magnetoresistance in Mn implanted Ge.
A. Simons, A. Gerber, I. Ya. Korenblit, A. Suslov, B. Raquet, M. Passacantando, L. Ottaviano, G. Impellizzeri and B. Aronzon, J. Appl. Phys. 115, 093703 (2014)

Anomalous Hall effect in (Co41Fe39B20)x(Al-O)100 − x nanocomposites.
Yu. O. Mikhailovsky, D. E. Mettus, A. P. Kazakov, V. N. Prudnikov, Yu. E. Kalinin, A. S. Sitnikov, A. Gerber, D. Bartov, A. B. Granovsky, JETP Letters, Volume 97, Issue 8, 473 (2013)

Time dependence of magnetization reversal when beginning with pre-existing nucleation sites.
Y. W. Windsor, A. Gerber, I. Ya. Korenblit, and M. Karpovski, J. Appl. Phys. 113, 223902 (2013)

Core contribution to magnetotransport of ferromagnetic dots in vortex state.
A. Segal, A. Gerber, J. Appl. Phys. 111, 073902 (2012)

Dynamics of successive minor hysteresis loops.
Y. W. Windsor, A. Gerber, and M. Karpovski , Phys. Rev. B, 85, 064409 (2012)

Sixteen-state magnetic memory based on the extraordinary Hall effect.
A. Segal, M. Karpovski, A. Gerber, JMMM 324, 1557 (2012)
Arxiv

Inhomogeneity and transverse voltage in superconductors.
A. Segal, M. Karpovski, and A. Gerber, Phys. Rev. B 83, 094531 (2011)
Arxiv

Nonthermal magnetization reversal assisted by unpolarized current.
O. Riss, A. Gerber, I. Ya. Korenblit, M. Karpovsky, and S. Hacohen-Gourgy , A. Tsukernik , J. Tuaillon-Combes, P. Mélinon, and A. Perez , Phys. Rev. B 82, 144417 (2010)

Monitoring magnetization reversal and perpendicular anisotropy by the extraordinary Hall effect and anisotropic magnetoresistance.
D. P. Rosenblatt, M. Karpovski, and A. Gerber, J. Appl. Phys. 108, 043924 (2010)

Reversal of the extraordinary Hall effect polarity in thin Co/Pd multilayers
D. Rosenblatt, M. Karpovski, and A. Gerber, Appl. Phys. Lett. 96, 022512(2010)

Magnetization-driven metal-insulator transition in strongly disordered Ge:Mn magnetic semiconductors
O. Riss, A. Gerber, and I. Ya. Korenblit, Phys. Rev. B 79, 241202(R) (2009)

Asymmetric field dependence of magnetoresistance in magnetic films.
A. Segal, O. Shaya, M. Karpovski, and A. Gerber, Phys Rev B 79, 144434 (2009)

Perspective of Spintronics Applications Based on the Extraordinary Hall Effect.
A. Gerber, O. Riss, J. Nanoelectron. Optoelectron. 3, 1, 35 (2008).

Offset reduction in Hall effect measurements using a nonswitching van der Pauw technique.
O. Riss, E. Shaked, M. Karpovsky, and A. Gerber Rev. Sci. Instrum. 79, 073901 (2008) .

Extraordinary Hall effect in Co-Pd bilayers.
O. Shaya, M. Karpovski and A. Gerber J. Appl. Phys. 102, 043910 (2007).

Linear Positive Magnetoresistance and Quantum Interference in Ferromagnetic Metals.
A. Gerber, I. Kishon, I. Ya. Korenblit, O. Riss, A. Segal, M. Karpovski and B. Raquet Phys. Rev. Lett. 99, 027201 (2007).

Reorientation Phase Transition and Sensitivity of the Extraordinary Hall Effect Based Sensors.
O. Riss, A. Tsukernik, M. Karpovski, and A. Gerber Jour. Magn. Magn. Matt. 298, 73 (2006).

Rolling-induced texturing in metal-clad MgB2 tapes and magnetoresistivity anisotropy.
V. Beilin,I. Lapides, M. Roth, E. Dulkin, E. Mojaev, A. Gerber, and O. Riss, Jour. Appl. Phys. 100, 043903 (2006).

Transition in the tunneling conductance of YBa2Cu3O7-? films in magnetic fields up to 32.4 T.
R. Beck, Y. Dagan, A. Milner, G. Leibovitch, A. Gerber, R.G. Mints, and G. Deutscher Phys. Rev. B 72, 104505 (2005).

Proximity Effect in Granular Superconductor-Normal Metal Structures.
Y. Sternfeld, V. Shelukhin, A. Tsukernik, M. Karpovski, A. Gerber and A.Palevski Phys. Rev. B 71, 064515 (2005).

Transverse “Resistance Overshoot” in a Si/SiGe Two-dimensional Electron Gas in the Quantum Hall Effect Regime.
I. Shlimak, V. Ginodman, A. Gerber, A. Milner, K.-J. Friedland and D.J. Paul Europhys. Lett. 69, 997 (2005).

Conductivity of weakly and strongly localized electrons in a n-type Si/SiGe heterostructure
I. Shlimak, V. Ginodman, M. Levin, M. Potemski, D.K. Maude, A. Gerber, A. Milner, and D.J. Paul Phys. Stat. Sol. (C) 1, 67 (2004).

Determination of the critical current density in the d-wave superconductor YBCO under applied magnetic fields by nodal tunneling.
R. Beck, G. Leibowitch, A. Milner, A. Gerber, and G. Deutscher. Supercond. Sci. Technol. 17, 1069 – 1071 (2004).

Correlation between the Extraordinary Hall Effect and Resistivity.
A. Gerber, A. Milner, A. Finkler, M. Karpovski, L. Goldsmith, J. Tuaillon-Combes, O. Boisron, P. Mélinon, and A. Perez.Phys. Rev. B 69, 224403 (2004).

Anomalous Magnetization of Nanoscale Ferromagnet/Normal-Metal Systems: Possible Evidence of the Electronic Spin Polarization.
A. Gerber, A. Milner, M. Karpovski, A. Tsukernik, A. Sulpice, J. Tuaillon-Combes, P. Melinon, and A.Perez. Phys. Rev. B 69, 134422 (2004).

Order Parameter Node Removal in the d-wave Superconductor YBa2Cu3O7-x in a Magnetic Field.
R. Beck, Y. Dagan, A.Milner, A.Gerber, and G. Deutscher Phys. Rev. B 69, 144506 (2004).

Extraordinary Hall Effect and X-Ray Photoemission Studies of Two-Dimensional Arrays of Magnetic Nanoclusters.
J. Tuallion-Combes, O. Boisron, E. Bernstein, G. Giraud, A. Gerber, A. Milner, P. Melinon and A. Perez. Applied Surface Science 226, 321-326 (2004).

Frequency Dependence of Creep Losses in BSCCO cylinders.
H. Castro, A. Gerber and A. Milner Physica B, 329, 1477-1478 (2003).

Memory of Vortex Matter within and outside the Peak Effect Region.
R. Schleser, P. van der Linden, P. Wyder and A. Gerber Phys. Rev. B 67, 134516 (2003).

Magnetostriction of the Model Type - II Superconductor NbTi.
A. Gerber, R. Schleser, P. van der Linden, and P. Wyder Physica B, 319 293-302 (2002).

Extraordinary Hall Effect in Magnetic Films
A. Gerber, A. Milner, M. Karpovsky, B. Lemke, H.-U. Habermeier, J. Tuaillon-Combes, M. Negrier, O. Boisron, P. Melinon, and A. Perez Jour. Magn. Magn. Matt. 242, 90-97 (2002).

Probing Planar Arrays of Magnetic Nano-Particles by the Extraordinary Hall Effect.
A. Gerber, A. Milner, J. Tuaillon-Combes, M. Negrier, O. Boisron, P. Melinon, and A. Perez Jour. Magn. Magn. Matt. 241, 340-344 (2002).

Effect of the Surface Scattering on the Extraordinary Hall Coefficient in Ferromagnetic Films.
A. Gerber, A. Milner, L.Goldsmith, M. Karpovsky, B. Lemke, H.-U. Habermeier, and A. Sulpice Phys. Rev. B 65, 054426 (2002).

Magnetoconductivity of Icosahedral and Amorphous Al-Pd-Re films - a Comparison.
R. Haberkern, R. Rosenbaum, H. Bekar, M. Pilosof, A. Gerber and P. Haussler Material Science and Engineering A, 294, 613-616 (2000).

High Field Breakdown of the Superconducting Critical State in BSCCO Single Crystals
A. Gerber and A. Milner Phys. Rev. B 62, 9753 - 9756 (2000).

Calorimetric Study of ac-Losses in BSCCO Tubes
H. Castro, A. Gerber, and A. Milner Physica C: Superconductivity 331, 141 - 149 (2000).

Spin - Dependent Scattering versus Spin - Dependent Tunneling in Heterogeneous Ferromagnets
A. Gerber Physica B, 280, 331 - 332 (2000).

Spin - Dependent Scattering in Weakly Coupled Nickel Films
A. Gerber, B. Groisman, A. Milner and M. Karpovsky Europhys. Lett. 49, 383 - 389 (2000).

Magnetoconductivity of AlPdRe Quasicrystalline Films
A. Milner, A. Gerber, R. Rosenbaum, R. Haberkern and P. Haussler J. Phys.:Condens.Matter 11, 8081 - 8093 (1999).

Effect of Magnetic Impurities on Electronic Transport of Heterogeneous Ferromagnets.
A. Milner, I.Ya. Korenblit, and A. Gerber Phys. Rev. B 60, 14821 - 14829 (1999).

Sublinear Temperature Dependence of Resistivity in Metallic Heterogeneous Ferromagnets at High Magnetic Fields.
I. Ya. Korenblit, A. Gerber, A. Milner, and M. Karpovsky Phys. Rev. B 59, 131 - 134 (1999).

Temperature Dependence of Resistivity and Magnetoresistivity of Nanogranular Co - Ag Films.
A. Gerber, A. Milner, I.Ya. Korenblit, M. Karpovsky, A. Gladkikh and A. Sulpice Phys. Rev. B 57, 13667 - 13673 (1998).

Magnetic Method of Magnetocaloric Effect Determination in High Pulsed Magnetic Fields
R.Z. Levitin, V.V. Snegirev, A.V. Kopylov, A.S. Lagutin and A. Gerber JMMM 170, 223 - 227 (1997).

Magnetoresistance of Granular Ferromagnet - Insulator Films
A. Gerber, A. Milner, B. Groisman, M. Karpovsky and A. Sulpice Thin Solid Films 304, pp. 319 - 322 (1997).

Insulator - Superconductor Transition in 3-D Granular Al - Ge Films.
A. Gerber, A. Milner, G. Deutscher, M. Karpovsky and A. Gladkikh Phys. Rev. Lett. 78, 4277 - 4280 (1997).

Superconductivity in the Metallic Amorphous Alloy ZrTiCuNiBe.
A. Gerber, A. Milner, A. Voronel, A. Rubstein, Yu. Rosenberg and M.P. Macht Physica C:, Superconductivity, 275, 333 - 336 (1997).

Magnetoresistance of Granular Ferromagnets.
A. Gerber, A Milner, B. Groisman, M. Karpovsky, A. Gladkikh and A. Sulpice Phys. Rev. B 55, 6446 - 6452 (1997).

Spin - Dependent Electronic Transport in Granular Ferromagnets.
A. Milner, A. Gerber, M. Karpovsky and A. Gladkikh Phys. Rev. Lett. 76, 475 - 478 (1996).

Peak Effect in the Magnetostriction of Superconducting NbTi due to Elastic Constants.
U. Wyder, P.J.E.M. van der Linden, H.P. van der Meulen, A. Gerber, V.H.M. Duijn, J.A.A.J. Perenboom, A. de Visser and J.J.M. Franse Physica B 211, pp. 265 - 268 (1995).

Comment on "Double Resistive Superconducting Transition in SmCeCuO".
T. Grenet, A. Gerber and M. Cyrot Phys. Rev. B 51, pp. 8647 - 8649 (1995).

Magnetocaloric Approach to Type II Superconductors.
A. Gerber, Z. Tarnawski, V.H.M. Duijn and J.J.M. Franse Phys. Rev. B 49, pp. 3492 - 3495, (1994).

Self Heating versus Quantum Creep in Bulk Superconductors - Reply
A. Gerber and J.J.M. Franse Phys. Rev. Lett. 72, p.792, (1994).

Self Heating versus Quantum Creep in Bulk Superconductors
A. Gerber and J.J.M. Franse Phys. Rev. Lett. 71, pp. 1895 - 1898, (1993).

Magnetic Instabilities in High Tc Superconductors.
A. Gerber, Z. Tarnawski and J.J.M. Franse Physica C 209, pp. 147 - 150, (1993).

Magnetic Instabilities in High Temperature Superconductors under Rapidly Varying Magnetic Fields.
A. Gerber, J.N. Li, Z. Tarnawski, J.J.M. Franse and A.A. Menovsky Phys. Rev. B 47, pp. 6047 - 6053, (1993).

High Tc Superconducting Ceramics: Model of Granular Superconductors.
A. Gerber Applied Superconductivity 1, pp. 985 - 994, (1993).

Flux Jumps in High Tc Single Crystals
A. Gerber, Z. Tarnawski, J.J.M. Franse, J.N. Li and A.A. Menovsky Applied Superconductivity 1, pp. 961 - 970, (1993).

H - T Phase Diagram of Granular Superconductors.
A. Gerber, T. Grenet, M. Cyrot and J. Beille Phys. Rev. B (Rapid Commun.) 45, pp. 5099 - 5102, (1992).

Weak Ferromagnetism of GdThCuO under Pressure.
J. Beille, G. Fillion, B. Barbara, T. Grenet, M. Cyrot, A. Gerber, and J.L. Martinez JMMM 104 - 107, pp. 532 - 534, (1992).

Harmonic Generation by Field Modulation of the Microwave Absorption of YBaCuO and Granular Lead Films.
S. Revenaz, J. Dumas and A. Gerber Physica C, 180, pp. 180 - 183, (1991).

Nonmonotonic Resistance Transition in Granular High Tc Superconductors.
A. Gerber, T. Grenet, M. Cyrot and J. Beille Phys. Rev. B 43, pp. 12935 - 12942, (1991).

Electrical Transport Properties and Superconducting Critical Temperature of LnMCuO (Ln = Pr, Nd, Sm, Eu; M = Ce, Th) under Quasihydrostatic Pressure up to 100 kbar.
J. Beille, A. Gerber, T. Grenet, M. Cyrot, J.T. Markert, E.A. Early and M.B. Maple Solid State Commun. 77, pp. 141 - 145, (1991).

Double Peak Superconducting Transition in Granular LnMCuO (Ln = Pr, Nd, Sm, Eu; M = Ce, Th) Superconductors.
A. Gerber, J. Beille, T. Grenet and M. Cyrot Phys. Rev. Lett. 65, pp. 3201 - 3204, (1990).

Superconducting Properties of LnMCuO (Ln = Pr, Nd, Sm, Eu; M = Ce, Th) under Pressure up to 100 kbar.
J. Beille, A. Gerber, T. Grenet, M. Cyrot, J.T. Markert, E.A. Early and M.B. Maple Journal of Less-Common Metals 164&165, pp. 800 - 807, (1990).

Low Temperature Transport Properties of Pb Films Below the Percolation Threshold.
A. Gerber Jour. Physics C: Condens. Matter 2, pp. 8161 - 8172, (1990).

n - Doped Superconducting Compounds: Granular and Pressure Effects.
A. Gerber, J. Beille, T. Grenet and M. Cyrot Physica B 165&166, pp. 1541 - 1542, (1990).

AC - to - DC Rectification and Macroscopic Quantum Interference in Percolating Superconducting Films.
A. Gerber and G. Deutscher Physica B 165&166, pp. 1459 - 1460, (1990).

Granular Superconductivity in the Electron - Doped Compounds LnMCuO (Ln = Pr, Nd, Sm, Eu; M = Ce, Th).
A. Gerber, J. Beille, T. Grenet and M. Cyrot Europhys. Lett. 12 (5), pp. 441 - 446, (1990).

AC - to - DC Conversion and Aharonov - Bohm Effect in Percolating Superconducting Films.
A. Gerber and G. Deutscher Phys. Rev. Lett. 64, pp. 1585 - 1588, (1990).

Upper Critical Field of Superconducting Pb Films Above and Below the Percolation Threshold.
A. Gerber and G. Deutscher Phys. Rev. Lett. 63, pp. 1184 - 1186, (1989).

Anomalous Aharonov - Bohm Effect in Percolating Superconducting Films.
A. Gerber and G. Deutscher Physica A 157, pp. 135 - 139, (1989).

Voltage Oscillations in Percolating Superconducting Films.
A. Gerber and G. Deutscher Jap. Jour. Appl. Phys. 26, Suppl. 26-3, pp. 1307 - 1308, (1987).

Superconducting Properties of In-Ge Mixture Films.
A. Gerber and G. Deutscher Phys. Rev. B 35, pp. 3214 - 3218, (1987).

Anomalous Superconducting Properties of In-Ge Mixtures near the Percolation Threshold.
A. Gerber and G. Deutscher Physica 126B, pp. 477-478, (1984).

Patents

  • Alexander Gerber
    Sensor for High Magnetic Fields.
    Israel Patent Application No. 118612 (1996).

  • Alexander Gerber
    Magnetic Thin Film Sensor Based on the Extraordinary Hall Effect.
    U.S. Patent No. 6,794,862 B2 (2004).

  • Alexander Gerber, Amir Segal
    Multi-Bit Magnetic Memory Cell
    Patent number: 9202544 (2015)

  • Alexander Gerber, Gil Markovich, Leah Ben Gur, Einat Tirosh
    Magnetic field sensing systems and methods
    Patent number: 10816614 (2017)