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Venkat Chandrasekhar

A microchip microcontroller-based transducer controller for non-contact scanning probe microscopy with phase-locked loop, amplitude, and Q control Journal Article

In: Review of Scientific Instruments, vol. 91, pp. 023705, 2020.

Abstract | Links | BibTeX | Tags: scanning probe, Tuning fork

Patrick Krantz; Venkat Chandrasekhar

Etching sharp tips from thin metallic wires for tuning-fork-based scanning probe microscopy Journal Article

In: Journal of Vacuum Science and Technology B, vol. 38, pp. 024004, 2020.

Abstract | Links | BibTeX | Tags: scanning probe, Tuning fork

V. V. Bal; Z. Huang; K. Han; Ariando; T. Venkatesan; V. Chandrasekhar

Low temperature magnetoresistance of (111) (La0.3Sr0.7)(Al0.65Ta0.35)/SrTiO3 Journal Article

In: Physical Review B, vol. 99, pp. 035408, 2019.

Abstract | Links | BibTeX | Tags: epitaxial, magnetic impurity, Magnetism, perovskite, phase coherence, spin glass, Superconductivity

Varada Vilas Bal

Transport Measurements on (111) Oriented (La0.3Sr0.7)(Al0.65Ta0.35)O3/SrTiO3 Heterostructures PhD Thesis

Northwestern University, 2018.

Abstract | Links | BibTeX | Tags: epitaxial, Kondo effect, magnetic impurity, Magnetism, perovskite, spin-orbit scattering, Superconductivity, superconductor

V. V. Bal; Z. Huang; K. Han; Ariando; T. Venkatesan; V. Chandrasekhar

Strong spin-orbit coupling and magnetism in (111) (La0.3Sr0.7)(Al0.65Ta0.35)/SrTiO3 Journal Article

In: Physical Review B, vol. 98, pp. 085416, 2018.

Abstract | Links | BibTeX | Tags: epitaxial, Magnetism, perovskite

Samuel Kenneth Davis; Zhen Huang; Kun Han; Ariando; Thirumalai Venkatesan; Venkat Chandrasekhar

Anisotropic superconductivity and frozen electronic states at the (111) LaAlO3/SrTiO3 interface Journal Article

In: Physical Review B, vol. 98, pp. 024504, 2018.

Abstract | Links | BibTeX | Tags: perovskite, Superconductivity

S. Davis; Z. Huang; K. Han; Ariando; T. Venkatesan; V. Chandrasekhar

Signatures of Electronic Nematicity in (111) LaAlO3/SrTiO3 Interfaces Journal Article

In: Physical Review B, vol. 97, pp. 041408(R), 2018.

Abstract | Links | BibTeX | Tags: epitaxial, perovskite

Samuel Kenneth Davis

Emergent Phenomena at the (111) LaAlO3/SrTiO3 Interface PhD Thesis

Department of Physics, Northwestern University, 2017.

Abstract | Links | BibTeX | Tags: Magnetism, perovskite, Superconductivity

S. Davis; Z. Huang; K. Han; Ariando; T. Venkatesan; V. Chandrasekhar

Magnetoresistance in the superconducting state at the (111) LaAlO3/SrTiO3 interface Journal Article

In: Physical Review B, vol. 96, pp. 134502, 2017.

Abstract | Links | BibTeX | Tags: epitaxial, Magnetism, perovskite, Superconductivity

V.V Bal; Zhen Huang; Kun Han; Ariando; T Venkatesan; Venkat Chandrasekhar

Electrostatic tuning of magnetism at the conducting (111) (La0.3Sr0.7)(Al0.65Ta0.35)/SrTiO3 interface Journal Article

In: Applied Physics Letters, vol. 111, no. 8, pp. 081604, 2017.

Abstract | Links | BibTeX | Tags: epitaxial, Magnetism, perovskite

S Davis; V Chandrasekhar; Z Huang; K Han; Ariando; T Venkatesan

Anisotropic multicarrier transport at the (111) LaAlO_3/SrTiO_3 interface Journal Article

In: Phys. Rev. B, vol. 95, no. 3, pp. 035127, 2017.

Abstract | Links | BibTeX | Tags: epitaxial, perovskite

Samuel Kenneth Davis; Zhen Huang; Kun Han; Ariando; Thirumalai Venkatesan; Venkat Chandrasekhar

Electrical Transport Anisotropy Controlled by Oxygen Vacancy Concentration in (111) LaAlO_3 /SrTiO_3 Interface Structures Journal Article

In: Advanced Materials Interfaces, pp. 1600830, 2016, ISSN: 21967350.

Links | BibTeX | Tags: epitaxial, perovskite

Manan Mehta

Interplay between superconductivity and ferromagnetism at the LaAlO3/SrTiO3 interface PhD Thesis

2015.

Links | BibTeX | Tags: AMR, epitaxial, Kondo effect, Magnetic force microscopy, Magnetism, Mesoscopic quantum transport, scanning probe, Superconductivity, vortex dynamics

Scott Mayle; Tanuj Gupta; Sam Davis; Venkat Chandrasekhar; Serhii Shafraniuk

Thermometry and thermal management of carbon nanotube circuits Journal Article

In: Journal of Applied Physics, vol. 117, no. 19, pp. 194305, 2015, ISSN: 0021-8979, 1089-7550.

Abstract | Links | BibTeX | Tags: Nanotube, thermal transport

V. V. Bal; M. M. Mehta; S. Ryu; H. Lee; C. M. Folkman; C. B. Eom; V. Chandrasekhar

Gate-tunable superconducting weak link behavior in top-gated LaAlO3-SrTiO3 Journal Article

In: Applied Physics Letters, vol. 106, no. 21, pp. 212601, 2015.

Links | BibTeX | Tags: epitaxial, Magnetism, perovskite, Proximity effect, Superconductivity

M. M. Mehta; Venkat Chandrasekhar

A hybrid analog-digital phase-locked loop for frequency mode non-contact scanning probe microscopy Journal Article

In: Review of Scientific Instruments, vol. 85, no. 1, pp. 013707, 2014.

Links | BibTeX | Tags: instrumentation, scanning probe

M. M. Mehta; D. A. Dikin; C. W. Bark; S. Ryu; C. M. Folkman; C. B. Eom; V. Chandrasekhar

Magnetic field tuned superconductor-to-insulator transition at the LaAlO 3 / SrTiO 3 interface Journal Article

In: Physical Review B, vol. 90, no. 10, 2014, ISSN: 1098-0121, 1550-235X.

Links | BibTeX | Tags: epitaxial, insulator, Magnetism, perovskite, superconductor

Taewan Noh; Sam Davis; Venkat Chandrasekhar

Nonlocal correlations in a proximity-coupled normal-metal Journal Article

In: Physical Review B, vol. 88, no. 2, 2013, ISSN: 1098-0121, 1550-235X.

Links | BibTeX | Tags: Andreev reflection, Proximity effect, Superconductivity

Taewan Noh; Manuel Houzet; Julia S. Meyer; Venkat Chandrasekhar

Nonlocal spin correlations mediated by a superconductor Journal Article

In: Physical Review B, vol. 87, no. 22, 2013, ISSN: 1098-0121, 1550-235X.

Links | BibTeX | Tags: Andreev reflection, Proximity effect, spin transport, Superconductivity

Venkat Chandrasekhar; M. M. Mehta

RTSPM: Real-time Linux control software for scanning probe microscopy Journal Article

In: Review of Scientific Instruments, vol. 84, no. 1, pp. 013705, 2013.

Links | BibTeX | Tags: instrumentation, scanning probe

Venkat Chandrasekhar; Manan Mehta

A real-time software simulator for scanning force microscopy Unpublished

2013.

Links | BibTeX | Tags: instrumentation, scanning probe

M.M. Mehta; D.A. Dikin; C.W. Bark; S. Ryu; C.M. Folkman; C.B. Eom; V. Chandrasekhar

Evidence for charge–vortex duality at the LaAlO3/SrTiO3 interface Journal Article

In: Nature Communications, vol. 3, pp. 955, 2012, ISSN: 2041-1723.

Links | BibTeX | Tags: epitaxial, insulator, Magnetism, perovskite, Superconductivity

P Cadden-Zimansky; J Wei; V Chandrasekhar

Coherent nonlocal correlations in Andreev interferometers Journal Article

In: New Journal of Physics, vol. 14, no. 4, pp. 043004, 2012, ISSN: 1367-2630.

Links | BibTeX | Tags: Andreev reflection, Proximity effect, superconductor

Jian Wei; P. Cadden-Zimansky; V. Chandrasekhar; P. Virtanen

Thermal fluctuations and flux-tunable barrier in proximity Josephson junctions Journal Article

In: Physical Review B, vol. 84, no. 22, 2011, ISSN: 1098-0121, 1550-235X.

Links | BibTeX | Tags: Andreev reflection, Proximity effect, Superconductivity

D. A. Dikin; M. Mehta; C. W. Bark; C. M. Folkman; C. B. Eom; V. Chandrasekhar

Coexistence of Superconductivity and Ferromagnetism in Two Dimensions Journal Article

In: Physical Review Letters, vol. 107, no. 5, 2011, ISSN: 0031-9007, 1079-7114.

Links | BibTeX | Tags: epitaxial, Magnetism, perovskite, Superconductivity

Goutam Sheet; Manan Mehta; D. A. Dikin; S. Lee; C. W. Bark; J. Jiang; J. D. Weiss; E. E. Hellstrom; M. S. Rzchowski; C. B. Eom; V. Chandrasekhar

Phase-Incoherent Superconducting Pairs in the Normal State of Ba ( Fe 1 − x Co x ) 2 As 2 Journal Article

In: Physical Review Letters, vol. 105, no. 16, 2010, ISSN: 0031-9007, 1079-7114.

Links | BibTeX | Tags: Andreev reflection, Superconductivity

Manan Mehta; Goutam Sheet; D. A. Dikin; S. Lee; C. W. Bark; J. Jiang; J. D. Weiss; E. E. Hellstrom; M. S. Rzchowski; C. B. Eom; V. Chandrasekhar

Conductance asymmetry in point-contacts on epitaxial thin films of Ba(Fe0.92Co0.08)2As2 Journal Article

In: Applied Physics Letters, vol. 97, no. 1, pp. 012503, 2010, ISSN: 0003-6951, 1077-3118.

Links | BibTeX | Tags: Andreev reflection, epitaxial, perovskite, Superconductivity

Goutam Sheet; Alexandra R. Cunliffe; Erik J. Offerman; Chad M. Folkman; Chang-Beom Eom; Venkat Chandrasekhar

dc and high frequency magnetic properties of nanopatterned CoFe2O4 arrays fabricated using sol-gel precursors Journal Article

In: Journal of Applied Physics, vol. 107, no. 10, pp. 104309, 2010, ISSN: 0021-8979, 1089-7550.

Links | BibTeX | Tags: Magnetism, microwave, perovskite, scanning probe

Goutam Sheet; Venkat Chandrasekhar

Possible microscopic origin of large broadening parameter in point Andreev reflection spectroscopy Journal Article

In: Applied Physics Letters, vol. 97, no. 6, pp. 062507, 2010, ISSN: 0003-6951, 1077-3118.

Links | BibTeX | Tags: Andreev reflection, perovskite, point contact, Superconductivity

Venkat Chandrasekhar

Thermal transport in superconductor/normal-metal structures Journal Article

In: Supercond. Sci. Technol., vol. 22, no. 8, pp. 083001, 2009, ISSN: 0953-2048.

Links | BibTeX | Tags: Proximity effect, Superconductivity, thermal transport

Alexandra R. Cunliffe

Magnetoelectric cobalt ferrite/bismuth ferrite hybrid nanostructures: Progress towards achieving electric field control of magnetization Masters Thesis

2009.

Links | BibTeX | Tags: AMR, epitaxial, FMR, Magnetic force microscopy, Magnetism, nanomagnets, perovskite, scanning probe

Irma Kuljanishvili; Dmitriy A. Dikin; Sergey Rozhok; Scott Mayle; Venkat Chandrasekhar

Controllable Patterning and CVD Growth of Isolated Carbon Nanotubes with Direct Parallel Writing of Catalyst Using Dip-Pen Nanolithography Journal Article

In: Small, vol. 5, no. 22, pp. 2523–2527, 2009, ISSN: 16136810, 16136829.

Links | BibTeX | Tags: Nanotube, scanning probe

Paul Cadden-Zimansky

Nonlocal Coherence in Normal Metal-Superconductor Nanostructures PhD Thesis

2008.

Links | BibTeX | Tags: Andreev reflection, charge imbalance, crossed andreev reflection, Mesoscopic quantum transport, nanomagnets, phase coherence, Proximity effect, Superconductivity

Udai Raj Singh; Anjan K. Gupta; Goutam Sheet; Venkat Chandrasekhar; H. W. Jang; C. B. Eom

Pseudogap formation in the metallic state of La0.7Sr0.3MnO3 thin films Journal Article

In: Applied Physics Letters, vol. 93, no. 21, pp. 212503, 2008, ISSN: 0003-6951, 1077-3118.

Links | BibTeX | Tags: Andreev reflection, point contact, scanning probe, Superconductivity

Venkat Chandrasekhar

An introduction to the quasiclassical theory of superconductivity for diffusive proximity-coupled systems Book Chapter

In: Karl-Heinz Bennemann; John B. Ketterson (Ed.): vol. Superconductivity: Volume 1, Springer Science & Business Media, 2008, ISBN: 978-3-540-73253-2, (Google-Books-ID: PguAgEQTiQwC).

Abstract | BibTeX | Tags: Andreev reflection, Proximity effect, Superconductivity

J. Wei; P. Cadden-Zimansky; V. Chandrasekhar

Observation of large h∕2e and h∕4e oscillations in a proximity dc superconducting quantum interference device Journal Article

In: Applied Physics Letters, vol. 92, no. 10, pp. 102502, 2008, ISSN: 0003-6951, 1077-3118.

Links | BibTeX | Tags: Andreev reflection, Proximity effect, Superconductivity

Dmitry Ruzmetov; Venkat Chandrasekhar

The dynamics of magnetic vortex states in a single permalloy nanoparticle Journal Article

In: Journal of Magnetism and Magnetic Materials, vol. 320, no. 1-2, pp. 47–52, 2008, ISSN: 03048853.

Links | BibTeX | Tags: Magnetism, nanomagnets

P. Cadden-Zimansky; Z. Jiang; V. Chandrasekhar

Thermopower oscillation symmetries in a double-loop Andreev interferometer Journal Article

In: Physica E: Low-dimensional Systems and Nanostructures, vol. 40, no. 1, pp. 155–159, 2007, ISSN: 13869477.

Links | BibTeX | Tags: Andreev reflection, Proximity effect, Superconductivity, thermal transport

P Cadden-Zimansky; Z Jiang; V Chandrasekhar

Charge imbalance, crossed Andreev reflection and elastic co-tunnelling in ferromagnet/superconductor/normal-metal structures Journal Article

In: New Journal of Physics, vol. 9, no. 5, pp. 116–116, 2007, ISSN: 1367-2630.

Links | BibTeX | Tags: Andreev reflection, charge imbalance, crossed andreev reflection, Magnetism, nanomagnets, spin transport

Yongho Seo; Paul Cadden-Zimansky; Venkat Chandrasekhar

Low-temperature scanning force microscopy using a tuning fork transducer Journal Article

In: JOURNAL-KOREAN PHYSICAL SOCIETY, vol. 50, no. 2, pp. 378, 2007.

Links | BibTeX | Tags: scanning probe, Tuning fork

P. Cadden-Zimansky; V. Chandrasekhar

Nonlocal Correlations in Normal-Metal Superconducting Systems Journal Article

In: Physical Review Letters, vol. 97, no. 23, 2006, ISSN: 0031-9007, 1079-7114.

Links | BibTeX | Tags: Andreev reflection, charge imbalance, crossed andreev reflection, Superconductivity

Zhengfan Zhang

Phase Coherent Electron Transport in Carbon Nanotube Devices PhD Thesis

2006.

Links | BibTeX | Tags: Conductance fluctuations, Kondo effect, Mesoscopic quantum transport, Nanotube

Zhengfan Zhang; Venkat Chandrasekhar

Signatures of phase coherence in the low-temperature transport properties of multiwall carbon nanotubes Journal Article

In: Physical Review B, vol. 73, no. 7, 2006, ISSN: 1098-0121, 1550-235X.

Links | BibTeX | Tags: Mesoscopic quantum transport, Nanotube, phase coherence

Zhigang Jiang; José Aumentado; Wolfgang Belzig; Venkat Chandrasekhar

Transport through Ferromagnet/Superconductor Interfaces Journal Article

In: SpringerLink, pp. 57–66, 2006.

Links | BibTeX | Tags: Andreev reflection, charge imbalance, Magnetism, nanomagnets, Proximity effect, Superconductivity

Kenneth Turner; Emma Tevaarwerk; Venkat Chandrasekhar; R. P. H. Chang

The scanning probe microscope and nanoscale measurement Journal Article

In: 2006.

Links | BibTeX | Tags: education, scanning probe

D. Ruzmetov; Y. Seo; L. J. Belenky; D.-M. Kim; X. Ke; H. Sun; V. Chandrasekhar; C.-B. Eom; M. S. Rzchowski; X. Pan

Epitaxial Magnetic Perovskite Nanostructures Journal Article

In: Advanced Materials, vol. 17, no. 23, pp. 2869–2872, 2005, ISSN: 0935-9648, 1521-4095.

Links | BibTeX | Tags: epitaxial, fabrication, Magnetism, nanomagnets, perovskite

Zhigang Jiang; Venkat Chandrasekhar

Quantitative measurements of the thermal resistance of Andreev interferometers Journal Article

In: Physical Review B, vol. 72, pp. 020502(R), 2005.

Abstract | Links | BibTeX | Tags: Andreev reflection, Mesoscopic quantum transport, phase coherence, Proximity effect, Superconductivity

Zhigang Jiang

Thermal Transport Near the Normal-Metal/Superconductor Interface in Mesoscopic Devices PhD Thesis

2005.

Links | BibTeX | Tags: Andreev reflection, charge imbalance, Mesoscopic quantum transport, phase coherence, Proximity effect, Superconductivity

Z. Jiang; V. Chandrasekhar

Thermal Conductance of Andreev Interferometers Journal Article

In: Physical Review Letters, vol. 94, no. 14, 2005, ISSN: 0031-9007, 1079-7114.

Links | BibTeX | Tags: Andreev reflection, phase coherence, Proximity effect, Superconductivity, thermal transport

Sung-Wook Chung; David S. Ginger; Mark W. Morales; Zhengfan Zhang; Venkat Chandrasekhar; Mark A. Ratner; Chad A. Mirkin

Top-Down Meets Bottom-Up: Dip-Pen Nanolithography and DNA-Directed Assembly of Nanoscale Electrical Circuits Journal Article

In: Small, vol. 1, no. 1, pp. 64–69, 2005, ISSN: 16136810.

Links | BibTeX | Tags: dip-pen nanolithography, molecular devices, scanning probe

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