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Dive into the research topics where Andra Mihaela Petrean is active.

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Featured researches published by Andra Mihaela Petrean.


Physical Review Letters | 1999

STRUCTURE OF VORTEX LIQUID PHASE IN IRRADIATED BI2SR2CACU2O8-DELTA CRYSTALS

N. Morozov; M. P. Maley; L. N. Bulaevskii; Verner Thorsmolle; A. E. Koshelev; Andra Mihaela Petrean; W. K. Kwok

The c-axis resistivity in irradiated and in pristine BSCCO(2212) crystals is measured as a function of the in-plane magnetic field component at fixed out-of-plane component B_\perp in the vortex liquid phase at T=67 K. From this data we extract the dependence of the phase difference correlation length inside layers on B_\perp and estimate the average length of pieces of vortex lines confined inside columnar defects as a function of the filling factor f=B_\perp / B_\phi. The maximum length, about 15 interlayer distances, is reached near f=0.35.


Physical Review Letters | 1999

Structure of Vortex Liquid Phase in Irradiated Bi{sub 2} Sr{sub 2} CaCu{sub 2} O{sub 8{minus}{delta} } Crystals

N. Morozov; M. P. Maley; L. N. Bulaevskii; Thorsmo; V. lle; A. E. Koshelev; Andra Mihaela Petrean; W. K. Kwok

The c-axis resistivity in irradiated and in pristine BSCCO(2212) crystals is measured as a function of the in-plane magnetic field component at fixed out-of-plane component B_\perp in the vortex liquid phase at T=67 K. From this data we extract the dependence of the phase difference correlation length inside layers on B_\perp and estimate the average length of pieces of vortex lines confined inside columnar defects as a function of the filling factor f=B_\perp / B_\phi. The maximum length, about 15 interlayer distances, is reached near f=0.35.


Physical Review Letters | 2000

Experimental evidence for the vortex glass phase in untwinned, proton irradiated YBa2Cu3O7-delta.

Andra Mihaela Petrean; Lisa Maria Paulius; W. K. Kwok; J. A. Fendrich; G. W. Crabtree


Physical Review Letters | 2000

Dynamic phases and the peak effect in dirty type II superconductors

Anne van Otterlo; R. T. Scalettar; Gergely T. Zimanyi; Robert James Olsson; Andra Mihaela Petrean; Wai Kwok; Valerii M. Vinokur


Physical Review B | 2002

Bose glass transition in columnar-defected untwinned (formula presented)

Robert James Olsson; Wai Kwong Kwok; Lisa Maria Paulius; Andra Mihaela Petrean; David Jonathan Hofman; G. W. Crabtree


Bulletin of the American Physical Society | 2017

Bead on a Spinning Hoop - Theory and Experiment

Andra Mihaela Petrean


Bulletin of the American Physical Society | 2016

Guided Inquiry in a Course for Non-Science Majors

Andra Mihaela Petrean


Bulletin of the American Physical Society | 2016

Synthesis and Characterization of Gold Thin Films

Evan Wyatt; Connor Luckett; Andra Mihaela Petrean; Jesus Avila; Carlos Avila; M. A. Quevedo-Lopez


Bulletin of the American Physical Society | 2015

Vortex dynamics in the YBa

Andra Mihaela Petrean; Lisa Maria Paulius; Valentina Tobos; Heather Cronk; Wai-Kwong Kwok


Physical Review B | 2002

_{\mathrm{2}}

Robert James Olsson; Wai K. Kwok; Lisa Maria Paulius; Andra Mihaela Petrean; David Jonathan Hofman; G. W. Crabtree

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Lisa Maria Paulius

Western Michigan University

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Wai K. Kwok

Argonne National Laboratory

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G. W. Crabtree

University of Illinois at Chicago

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Valentina Tobos

Lawrence Technological University

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W. K. Kwok

Argonne National Laboratory

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Scott Ferguson

Western Michigan University

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A. E. Koshelev

Argonne National Laboratory

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