126 citations · 313 across the 16 of their papers we have counts for
16 papers
Unconventional polaronic ground state in superconducting LiTiO
Zubia Hasan, Grace A. Pan, Harrison LaBollita +23
Geometrically frustrated lattices can display a range of correlated phenomena, ranging from spin frustration and charge order to dispersionless flat bands due to quantum interferen…
Complex Magnetic Ordering in Candidate Topological Superconductors
Purnima P. Balakrishnan, Hemian Yi, Zi-Jie Yan +13
The search for chiral topological superconductivity in magnetic topological insulator (TI)-FeTe heterostructures is a key frontier in condensed matter physics, with potential appli…
Vertically Graded Fe-Ni Alloys with Low Damping and a Sizeable Spin-Orbit Torque
Rachel E. Maizel, Shuang Wu, Purnima P. Balakrishnan +13
Energy-efficient spintronic devices require a large spin-orbit torque (SOT) and low damping to excite magnetic precession. In conventional devices with heavy-metal/ferromagnet bila…
Hydrogen is not necessary for superconductivity in topotactically reduced nickelates
Purnima P. Balakrishnan, Dan Ferenc Segedin, Lin Er Chow +19
A key open question in the study of layered superconducting nickelate films is the role that hydrogen incorporation into the lattice plays in the appearance of the superconducting…
Coexistence of Superconductivity and Antiferromagnetism in Topological Magnet MnBi2Te4 Films
Wei Yuan, Zi-Jie Yan, Hemian Yi +15
The interface of two materials can harbor unexpected emergent phenomena. One example is interface-induced superconductivity. In this work, we employ molecular beam epitaxy to grow…
Electrical switching of the perpendicular Neel order in a collinear antiferromagnet
Wenqing He, Tianyi Zhang, Yongjian Zhou +17
Electrical manipulation of magnetic order by current-induced spin torques lays the foundation for spintronics. One promising approach is encoding information in the Néel vector of…
Interface-Induced Superconductivity in Magnetic Topological Insulator-Iron Chalcogenide Heterostructures
Hemian Yi, Yi-Fan Zhao, Ying-Ting Chan +24
When two different electronic materials are brought together, the resultant interface often shows unexpected quantum phenomena, including interfacial superconductivity and Fu-Kane…
First-order phase transition vs. spin-state quantum-critical scenarios in strain-tuned epitaxial cobaltite thin films
J. E. Dewey, V. Chaturvedi, T. A. Webb +12
Pr-containing perovskite cobaltites exhibit unusual valence transitions, coupled to coincident structural, spin-state, and metal-insulator transitions. Heteroepitaxial strain was r…
Nitrogen-Based Magneto-Ionic Manipulation of Exchange Bias in CoFe/MnN Heterostructures
Christopher J. Jensen, Alberto Quintana, Patrick Quarterman +6
Electric field control of the exchange bias effect across ferromagnet/antiferromagnet (FM/AF) interfaces has offered exciting potentials for low-energy-dissipation spintronics. In…
Exchange-biased quantum anomalous Hall effect
Peng Zhang, Purnima P. Balakrishnan, Christopher Eckberg +12
The quantum anomalous Hall (QAH) effect is characterized by a dissipationless chiral edge state with a quantized Hall resistance at zero magnetic field. Manipulating the QAH state…
Tailoring Magnetic Exchange Interactions in Ferromagnet-Intercalated MnBi2Te4 Superlattices
Peng Chen, Qi Yao, Qiang Sun +15
The intrinsic magnetic topological insulator MnBi2Te4 (MBT) has provided a platform for the successful realization of exotic quantum phenomena. To broaden the horizons of MBT-based…
Room-Temperature Valence Transition in a Strain-Tuned Perovskite Oxide
Vipul Chaturvedi, Supriya Ghosh, Dominique Gautreau +17
Cobalt oxides have long been understood to display intriguing phenomena known as spin-state crossovers, where the cobalt ion spin changes vs. temperature, pressure, etc. A very dif…
Magnetic field-induced non-trivial electronic topology in Fe3GeTe2
Juan Macy, Danilo Ratkovski, Purnima P. Balakrishnan +16
The anomalous Hall, Nernst and thermal Hall coefficients of FeGeTe display several features upon cooling, like a reversal in the Nernst signal below K pointing…
Emergent electric field control of phase transformation in oxide superlattices
Di Yi, Yujia Wang, Olaf M. J. van 't Erve +13
Electric fields can transform materials with respect to their structure and properties, enabling various applications ranging from batteries to spintronics. Recently electrolytic g…
Tuning Perpendicular Magnetic Anisotropy by Oxygen Octahedral Rotations in (LaSrMnO)/(SrIrO) Superlattices
Di Yi, Charles L. Flint, Purnima P. Balakrishnan +13
Perpendicular magnetic anisotropy (PMA) plays a critical role in the development of spintronics, thereby demanding new strategies to control PMA. Here we demonstrate a conceptually…
Metallicity in Ultra-Thin Oxygen-Deficient SrTiO Thin Films
Purnima P. Balakrishnan, Urusa S. Alaan, Matthew T. Gray +1
We report on the observation of metallic behavior in thin films of oxygen-deficient SrTiO - down to 9 unit cells - when coherently strained on (001) SrTiO or DyScO-buff…