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Complex Oxides: Neutron and X-Ray Scattering, Transport Measurements, and Crystal Growth
  • Floating-zone image furnace
  • Co-mounted crystals for neutron scattering
  • Sample prepared for Seebeck coefficient experiments
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Latest News

05/2019

Nina Bielinski and Nikhil Gupta graduate with a B.S. in physics.

05/2019

Davis Emerson, Isaac Martin, and Zi Wang join our group.

03/2019

Damjan Pelc gives an invited talk at the APS March Meeting

01/2019

Nikolaos Biniskos joins our group

09/2018

Richard Spieker and Chiou Yang Tan join our group

08/2018

Yang Tang graduated with a PhD

04/2018

Joseph Joe joins our group

03/2018

Martin Greven named a Distinguished McKnight University Professor

03/2018

Martin Greven named a fellow of the Neutron Scattering Society of America

03/2018

Sylvia Griffitt joins our group

11/2017

Biqiong Yu wins UMN Doctoral Dissertation Fellwoship

11/2017

Nina Bielinski and Nikhil Gupta win competitive research awards by the School of Physics and Astronomy

10/2017

Vikram Nagarajan joins graduate school at UC Berkeley

10/2017

Madison Wieczorek and Liam Thompson join our group

10/2017

Damjan Pelc joins our group

We study the structural, electronic and magnetic properties of select quantum materials, especially complex oxides. This materials class embodies many of the most fundamental contemporary questions pertaining to the quantum behavior of interacting electrons. Our research involves bulk single crystal growth, neutron and X-ray scattering as well as charge transport and nonlinear magnetic response experiments, and we engage in extensive collaborations with experts in the use of complementary experimental techniques. Most of our work is supported by the Department of Energy, Office of Basic Energy Sciences through the University of Minnesota Center for Quantum Materials. In addition, through a NSF MRSEC grant, we are using synchrotron X-rays to study electrostatically doped films of complex oxides, such as cuprates, cobaltites and titanates. Learn more.

Selected results (since 2007):

  • Hole pocket-driven superconductivity and its universal features in the electron-doped cuprates
  • Unusual behavior of cuprates explained by heterogeneous charge localization
  • Emergence of superconductivity in the cuprates via a universal percolation process
  • Percolative nature of the dc paraconductivity in the cuprate superconductors
  • Universal superconducting precursor regime in perovskite-based oxides
  • Ion-Gel-Gating-Induced Oxygen Vacancy Formation in Epitaxial La0.5Sr0.5CoO3-δ Films from in operando X-ray and Neutron Scattering
  • Hidden Fermi-liquid charge transport in the antiferromagnetic phase of the electron-doped cuprate superconductors
  • Commensurate antiferromagnetic excitations as a signature of the pseudogap in the tetragonal high-Tc cuprate HgBa2CuO4+δ
  • Charge order and its connection with Fermi-liquid charge transport in a pristine high-Tc cuprate
  • In-Plane Magnetoresistance Obeys Kohler’s Rule in the Pseudogap Phase of Cuprate Superconductors
  • Universal quantum oscillations in the underdoped cuprate superconductors
  • Universal sheet resistance and revised phase diagram of the cuprate high-temperature superconductors
  • Spectroscopic Evidence for a Fermi liquid-like energy and temperature dependence of the relaxation rate in the pseudogap phase of the cuprates
  • Unusual magnetic order in the pseudogap region of the superconductor HgBa2CuO4+δ
  • Spin correlations in the electron-doped high-transition-temperature superconductor Nd2-xCexCuO4+δ
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