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Dive into the research topics where A. A. Schafgans is active.

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Featured researches published by A. A. Schafgans.


Physical Review B | 2008

Electrodynamics of the vanadium oxides VO2 and V2O3

M. M. Qazilbash; A. A. Schafgans; Kenneth S. Burch; Sun-Jin Yun; Byung-Gyu Chae; Bong Jun Kim; Heonoh Kim; D. N. Basov

The optical and infrared properties of films of vanadium dioxide


Physical Review B | 2011

Nanoscale imaging of the electronic and structural transitions in vanadium dioxide

M. M. Qazilbash; Ashish Tripathi; A. A. Schafgans; Bong-Jun Kim; Hyun-Tak Kim; Zhonghou Cai; M. V. Holt; J. Maser; Fritz Keilmann; Oleg Shpyrko; D. N. Basov

(\mathrm{V}{\mathrm{O}}_{2})


Physical Review Letters | 2011

Evidence of a Precursor Superconducting Phase at Temperatures as High as 180 K in RBa2Cu3O7-delta (R = Y, Gd, Eu) Superconducting Crystals from Infrared Spectroscopy

Adam Dubroka; Matthias Rössle; Kyung Wan Kim; Vivek Kumar Malik; Dominik Munzar; D. N. Basov; A. A. Schafgans; S. J. Moon; C. T. Lin; D. Haug; V. Hinkov; B. Keimer; Th. Wolf; James Storey; Jeffery L. Tallon; C. Bernhard

and vanadium sesquioxide


Physical Review Letters | 2012

Infrared Measurement of the Pseudogap of P-Doped and Co-Doped High-Temperature BaFe2As2 Superconductors

Seung-Jae Moon; A. A. Schafgans; S. Kasahara; T. Shibauchi; Takahito Terashima; Y. Matsuda; Makariy A. Tanatar; Ruslan Prozorov; A. Thaler; Paul C. Canfield; Athena S. Sefat; D. Mandrus; D. N. Basov

({\mathrm{V}}_{2}{\mathrm{O}}_{3})


Physical Review Letters | 2005

Optical study of interactions in a d-electron kondo lattice with ferromagnetism

Kenneth S. Burch; A. A. Schafgans; N. P. Butch; T. A. Sayles; M. B. Maple; Brian C. Sales; David Mandrus; D. N. Basov

have been investigated via ellipsometry and near-normal incidence reflectance measurements from far infrared to ultraviolet frequencies. Significant changes occur in the optical conductivity of both


Physical Review Letters | 2010

Towards a two-dimensional superconducting state of La(2-x)Sr(x)CuO4 in a moderate external magnetic field.

A. A. Schafgans; Andrew LaForge; S. V. Dordevic; M. M. Qazilbash; Willie J. Padilla; Kenneth S. Burch; Zhiqiang Li; Seiki Komiya; Yoichi Ando; D. N. Basov

\mathrm{V}{\mathrm{O}}_{2}


Physical Review B | 2011

Phonon splitting and anomalous enhancement of infrared-active modes in BaFe2As2

A. A. Schafgans; B. C. Pursley; Andrew LaForge; Athena S. Sefat; David Mandrus; D. N. Basov

and


Physical Review B | 2010

Interpreting quantum oscillation experiments on underdoped YBa2Cu3O6+x

J. M. Tranquada; D. N. Basov; A. J. LaForge; A. A. Schafgans

{\mathrm{V}}_{2}{\mathrm{O}}_{3}


Physical Review B | 2010

Breakdown of the universal Josephson relation in spin-ordered cuprate superconductors

A. A. Schafgans; C.C. Homes; G. D. Gu; Seiki Komiya; Yoichi Ando; D. N. Basov

across the metal-insulator transitions at least up to (and possibly beyond)


Physical Review B | 2012

Publisher's Note: Landau level spectroscopy of surface states in the topological insulator Bi0.91Sb0.09via magneto-optics [Phys. Rev. B85, 195440 (2012)]

A. A. Schafgans; K. W. Post; A. A. Taskin; Yoichi Ando; Xiao-Liang Qi; Brian Chapler; D. N. Basov

6\phantom{\rule{0.3em}{0ex}}\mathrm{eV}

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Andrew LaForge

University of California

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Athena S. Sefat

Oak Ridge National Laboratory

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Zhiqiang Li

University of California

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Seiki Komiya

Central Research Institute of Electric Power Industry

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D. Mandrus

University of Tennessee

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