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Showing 1 to 12 of 126 entries
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Corrigendum: Observation of polar vortices in oxide superlattices.

Nature

Yadav AK, Nelson CT, Hsu SL, Hong Z, Clarkson JD, Schlepütz CM, Damodaran AR, Shafer P, Arenholz E, Dedon LR, Chen D, Vishwanath A, Minor AM, Chen LQ, Scott JF, Martin LW, Ramesh R.
PMID: 26934222
Nature. 2016 Jun 02;534(7605):138. doi: 10.1038/nature17420. Epub 2016 Mar 02.

No abstract available.

Tuning Perpendicular Magnetic Anisotropy by Oxygen Octahedral Rotations in (La_{1-x}Sr_{x}MnO_{3})/(SrIrO_{3}) Superlattices.

Physical review letters

Yi D, Flint CL, Balakrishnan PP, Mahalingam K, Urwin B, Vailionis A, N'Diaye AT, Shafer P, Arenholz E, Choi Y, Stone KH, Chu JH, Howe BM, Liu J, Fisher IR, Suzuki Y.
PMID: 28949659
Phys Rev Lett. 2017 Aug 18;119(7):077201. doi: 10.1103/PhysRevLett.119.077201. Epub 2017 Aug 14.

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 new type of interface induced PMA that is controlled by oxygen octahedral rotation. In...

Correlation-Driven Insulator-Metal Transition in Near-Ideal Vanadium Dioxide Films.

Physical review letters

Gray AX, Jeong J, Aetukuri NP, Granitzka P, Chen Z, Kukreja R, Higley D, Chase T, Reid AH, Ohldag H, Marcus MA, Scholl A, Young AT, Doran A, Jenkins CA, Shafer P, Arenholz E, Samant MG, Parkin SS, Dürr HA.
PMID: 27035314
Phys Rev Lett. 2016 Mar 18;116(11):116403. doi: 10.1103/PhysRevLett.116.116403. Epub 2016 Mar 18.

We use polarization- and temperature-dependent x-ray absorption spectroscopy, in combination with photoelectron microscopy, x-ray diffraction, and electronic transport measurements, to study the driving force behind the insulator-metal transition in VO_{2}. We show that both the collapse of the insulating...

Magnetic Interactions at the Nanoscale in Trilayer Titanates.

Physical review letters

Cao Y, Yang Z, Kareev M, Liu X, Meyers D, Middey S, Choudhury D, Shafer P, Guo J, Freeland JW, Arenholz E, Gu L, Chakhalian J.
PMID: 26943550
Phys Rev Lett. 2016 Feb 19;116(7):076802. doi: 10.1103/PhysRevLett.116.076802. Epub 2016 Feb 17.

We report on the phase diagram of competing magnetic interactions at the nanoscale in engineered ultrathin trilayer heterostructures of LaTiO_{3}/SrTiO_{3}/YTiO_{3}, in which the interfacial inversion symmetry is explicitly broken. Combined atomic layer resolved scanning transmission electron microscopy with electron...

Visual Learning of Statistical Relations Among Non-adjacent Features: Evidence for Structural Encoding.

Visual cognition

Barenholtz E, Tarr MJ.
PMID: 24847179
Vis cogn. 2011 Apr 01;19(4):469-482. doi: 10.1080/13506285.2011.552894.

Recent results suggest that observers can learn, unsupervised, the co-occurrence of independent shape features in viewed patterns (e.g., Fiser & Aslin, 2001). A critical question with regard to these findings is whether learning is driven by a structural, rule-based...

Magnetic Switching in Granular FePt Layers Promoted by Near-Field Laser Enhancement.

Nano letters

Granitzka PW, Jal E, Le Guyader L, Savoini M, Higley DJ, Liu T, Chen Z, Chase T, Ohldag H, Dakovski GL, Schlotter WF, Carron S, Hoffman MC, Gray AX, Shafer P, Arenholz E, Hellwig O, Mehta V, Takahashi YK, Wang J, Fullerton EE, Stöhr J, Reid AH, Dürr HA.
PMID: 28272897
Nano Lett. 2017 Apr 12;17(4):2426-2432. doi: 10.1021/acs.nanolett.7b00052. Epub 2017 Mar 17.

Light-matter interaction at the nanoscale in magnetic materials is a topic of intense research in view of potential applications in next-generation high-density magnetic recording. Laser-assisted switching provides a pathway for overcoming the material constraints of high-anisotropy and high-packing density...

Angle-dependent x-ray magnetic circular dichroism from (Ga,Mn)As: anisotropy and identification of hybridized states.

Physical review letters

Edmonds KW, van der Laan G, Freeman AA, Farley NR, Johal TK, Campion RP, Foxon CT, Gallagher BL, Arenholz E.
PMID: 16605863
Phys Rev Lett. 2006 Mar 24;96(11):117207. doi: 10.1103/PhysRevLett.96.117207. Epub 2006 Mar 22.

Remarkably anisotropic Mn L2,3 x-ray magnetic circular dichroism spectra from the ferromagnetic semiconductor (Ga,Mn)As are reported. States with cubic and uniaxial symmetry are distinguished by careful analysis of the angle dependence of the spectra. The multiplet structures with cubic...

Laser-induced structure formation on stretched polymer foils.

Physical review. E, Statistical, nonlinear, and soft matter physics

Bityurin N, Arenholz E, Arnold N, Bäuerle D.
PMID: 17500903
Phys Rev E Stat Nonlin Soft Matter Phys. 2007 Apr;75(4):041603. doi: 10.1103/PhysRevE.75.041603. Epub 2007 Apr 12.

Noncoherent structures that develop during UV laser ablation of stretched semicrystalline polymer foils are a very general phenomenon. A thermodynamic model based on stress relaxation within the modified layer of the polymer surface describes the main features of the...

Strain-induced changes in the electronic structure of MnCr(2)O(4) thin films probed by x-ray magnetic circular dichroism.

Physical review letters

van der Laan G, Chopdekar RV, Suzuki Y, Arenholz E.
PMID: 20868013
Phys Rev Lett. 2010 Aug 06;105(6):067405. doi: 10.1103/PhysRevLett.105.067405. Epub 2010 Aug 06.

We show that the angular dependence of x-ray magnetic circular dichroism (XMCD) is strongly sensitive to strain-induced electronic structure changes in magnetic transition metal oxides. We observe a pronounced dependence of the XMCD spectral shape on the experimental geometry...

Quantitative determination of element concentrations in industrial oxide materials by laser-induced breakdown spectroscopy.

Analytical and bioanalytical chemistry

Praher B, Rössler R, Arenholz E, Heitz J, Pedarnig JD.
PMID: 21523330
Anal Bioanal Chem. 2011 Jul;400(10):3367-75. doi: 10.1007/s00216-011-5000-9. Epub 2011 Apr 27.

Calibration-free laser-induced breakdown spectroscopy (CF-LIBS) method is employed for quantitative determination of oxide concentrations in multi-component materials. Industrial oxide materials from steel industry are laser ablated in air, and the optical plasma emission is collected by spectrometers and gated...

Chirality switching and winding or unwinding of the antiferromagnetic NiO domain walls in Fe/NiO/Fe/CoO/Ag(001).

Physical review letters

Li J, Tan A, Ma S, Yang RF, Arenholz E, Hwang C, Qiu ZQ.
PMID: 25325659
Phys Rev Lett. 2014 Oct 03;113(14):147207. doi: 10.1103/PhysRevLett.113.147207. Epub 2014 Oct 03.

Fe/NiO/Fe/CoO/Ag(001) single crystalline films were grown epitaxially and investigated by x-ray magnetic circular dichroism and x-ray magnetic linear dichroism. The bottom Fe layer magnetization is pinned through exchange coupling to the CoO layer and the top Fe layer magnetization...

Magnetic circular dichroism and orbital momentum coupling in 4d photoemission from Gd(0001).

Physical review. B, Condensed matter

Arenholz E, Bauer A, Kaindl G, Navas E, van der Laan G.
PMID: 9982095
Phys Rev B Condens Matter. 1996 Mar 01;53(10):R5998-R6001. doi: 10.1103/physrevb.53.r5998.

No abstract available.

Showing 1 to 12 of 126 entries