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Items: 1 to 50 of 90

1.

Disorder raises the critical temperature of a cuprate superconductor.

Leroux M, Mishra V, Ruff JPC, Claus H, Smylie MP, Opagiste C, Rodière P, Kayani A, Gu GD, Tranquada JM, Kwok WK, Islam Z, Welp U.

Proc Natl Acad Sci U S A. 2019 May 28;116(22):10691-10697. doi: 10.1073/pnas.1817134116. Epub 2019 May 13.

2.

Targeted evolution of pinning landscapes for large superconducting critical currents.

Sadovskyy IA, Koshelev AE, Kwok WK, Welp U, Glatz A.

Proc Natl Acad Sci U S A. 2019 May 21;116(21):10291-10296. doi: 10.1073/pnas.1817417116. Epub 2019 Apr 8.

3.

Author Correction: Glassy Dynamics in a heavy ion irradiated NbSe2 crystal.

Eley S, Khilstrom K, Fotovat R, Xiao ZL, Chen A, Chen D, Leroux M, Welp U, Kwok WK, Civale L.

Sci Rep. 2018 Sep 26;8(1):14592. doi: 10.1038/s41598-018-32999-7.

4.

Glassy Dynamics in a heavy ion irradiated NbSe2 crystal.

Eley S, Khilstrom K, Fotovat R, Xiao ZL, Chen A, Chen D, Leroux M, Welp U, Kwok WK, Civale L.

Sci Rep. 2018 Sep 3;8(1):13162. doi: 10.1038/s41598-018-31203-0. Erratum in: Sci Rep. 2018 Sep 26;8(1):14592.

5.

Superconducting and normal-state anisotropy of the doped topological insulator Sr0.1Bi2Se3.

Smylie MP, Willa K, Claus H, Koshelev AE, Song KW, Kwok WK, Islam Z, Gu GD, Schneeloch JA, Zhong RD, Welp U.

Sci Rep. 2018 May 16;8(1):7666. doi: 10.1038/s41598-018-26032-0.

6.

Nanocalorimeter platform for in situ specific heat measurements and x-ray diffraction at low temperature.

Willa K, Diao Z, Campanini D, Welp U, Divan R, Hudl M, Islam Z, Kwok WK, Rydh A.

Rev Sci Instrum. 2017 Dec;88(12):125108. doi: 10.1063/1.5016592.

PMID:
29289216
7.

High-resolution Thermal Micro-imaging Using Europium Chelate Luminescent Coatings.

Benseman TM, Hao Y, Vlasko-Vlasov VK, Welp U, Koshelev AE, Kwok WK, Divan R, Keiser C, Watanabe C, Kadowaki K.

J Vis Exp. 2017 Apr 16;(122). doi: 10.3791/53948.

8.

Vortices in high-performance high-temperature superconductors.

Kwok WK, Welp U, Glatz A, Koshelev AE, Kihlstrom KJ, Crabtree GW.

Rep Prog Phys. 2016 Nov;79(11):116501. Epub 2016 Sep 21.

PMID:
27652716
9.

Toward Superconducting Critical Current by Design.

Sadovskyy IA, Jia Y, Leroux M, Kwon J, Hu H, Fang L, Chaparro C, Zhu S, Welp U, Zuo JM, Zhang Y, Nakasaki R, Selvamanickam V, Crabtree GW, Koshelev AE, Glatz A, Kwok WK.

Adv Mater. 2016 Jun;28(23):4593-600. doi: 10.1002/adma.201600602. Epub 2016 Mar 31.

PMID:
27030115
10.

Stripe domains and first-order phase transition in the vortex matter of anisotropic high-temperature superconductors.

Vlasko-Vlasov VK, Clem JR, Koshelev AE, Welp U, Kwok WK.

Phys Rev Lett. 2014 Apr 18;112(15):157001. Epub 2014 Apr 17.

PMID:
24785065
11.

Huge critical current density and tailored superconducting anisotropy in SmFeAsO₀.₈F₀.₁₅ by low-density columnar-defect incorporation.

Fang L, Jia Y, Mishra V, Chaparro C, Vlasko-Vlasov VK, Koshelev AE, Welp U, Crabtree GW, Zhu S, Zhigadlo ND, Katrych S, Karpinski J, Kwok WK.

Nat Commun. 2013;4:2655. doi: 10.1038/ncomms3655.

PMID:
24189627
12.

Convection-enhanced delivery and in vivo imaging of polymeric nanoparticles for the treatment of malignant glioma.

Bernal GM, LaRiviere MJ, Mansour N, Pytel P, Cahill KE, Voce DJ, Kang S, Spretz R, Welp U, Noriega SE, Nunez L, Larsen GF, Weichselbaum RR, Yamini B.

Nanomedicine. 2014 Jan;10(1):149-57. doi: 10.1016/j.nano.2013.07.003. Epub 2013 Jul 24.

13.

Chiral phase transition in charge ordered 1T-TiSe2.

Castellan JP, Rosenkranz S, Osborn R, Li Q, Gray KE, Luo X, Welp U, Karapetrov G, Ruff JP, van Wezel J.

Phys Rev Lett. 2013 May 10;110(19):196404. Epub 2013 May 7.

PMID:
23705726
14.

Plasmonic amplifiers: engineering giant light enhancements by tuning resonances in multiscale plasmonic nanostructures.

Chen A, Miller RL, DePrince AE 3rd, Joshi-Imre A, Shevchenko E, Ocola LE, Gray SK, Welp U, Vlasko-Vlasov VK.

Small. 2013 Jun 10;9(11):1939-46. doi: 10.1002/smll.201202216. Epub 2012 Dec 21. Erratum in: Small. 2013 Nov 25;9(22):3734.

PMID:
23281210
15.

Catalyst-free growth of millimeter-long topological insulator Bi₂Se₃ nanoribbons and the observation of the π-Berry phase.

Fang L, Jia Y, Miller DJ, Latimer ML, Xiao ZL, Welp U, Crabtree GW, Kwok WK.

Nano Lett. 2012 Dec 12;12(12):6164-9. doi: 10.1021/nl302989v. Epub 2012 Nov 8.

PMID:
23126261
16.

A single-solenoid pulsed-magnet system for single-crystal scattering studies.

Islam Z, Capatina D, Ruff JP, Das RK, Trakhtenberg E, Nojiri H, Narumi Y, Welp U, Canfield PC.

Rev Sci Instrum. 2012 Mar;83(3):035101. doi: 10.1063/1.3688251.

PMID:
22462954
17.

Optical excitation and decay dynamics of ytterbium atoms embedded in a solid neon matrix.

Xu CY, Hu SM, Singh J, Bailey K, Lu ZT, Mueller P, O'Connor TP, Welp U.

Phys Rev Lett. 2011 Aug 26;107(9):093001. Epub 2011 Aug 22.

PMID:
21929234
18.

Networks of ultrasmall Pd/Cr nanowires as high performance hydrogen sensors.

Zeng XQ, Wang YL, Deng H, Latimer ML, Xiao ZL, Pearson J, Xu T, Wang HH, Welp U, Crabtree GW, Kwok WK.

ACS Nano. 2011 Sep 27;5(9):7443-52. doi: 10.1021/nn2023717. Epub 2011 Aug 24.

PMID:
21854059
19.

Self-assembled large Au nanoparticle arrays with regular hot spots for SERS.

Chen A, DePrince AE 3rd, Demortière A, Joshi-Imre A, Shevchenko EV, Gray SK, Welp U, Vlasko-Vlasov VK.

Small. 2011 Aug 22;7(16):2365-71. doi: 10.1002/smll.201100686. Epub 2011 Jun 1.

PMID:
21630447
20.

Three-dimensional photonic crystal fluorinated tin oxide (FTO) electrodes: synthesis and optical and electrical properties.

Yang Z, Gao S, Li W, Vlasko-Vlasov V, Welp U, Kwok WK, Xu T.

ACS Appl Mater Interfaces. 2011 Apr;3(4):1101-8. doi: 10.1021/am1012408. Epub 2011 Mar 11.

PMID:
21395238
21.

Hydrogen gas sensing with networks of ultrasmall palladium nanowires formed on filtration membranes.

Zeng XQ, Latimer ML, Xiao ZL, Panuganti S, Welp U, Kwok WK, Xu T.

Nano Lett. 2011 Jan 12;11(1):262-8. doi: 10.1021/nl103682s. Epub 2010 Nov 29.

PMID:
21114299
22.

SERS enhancements via periodic arrays of gold nanoparticles on silver film structures.

Montgomery JM, Imre A, Welp U, Vlasko-Vlasov V, Gray SK.

Opt Express. 2009 May 11;17(10):8669-75.

PMID:
19434200
23.

Magnetoresistance anisotropy of a one-dimensional superconducting niobium strip.

Hua J, Xiao ZL, Imre A, Yu SH, Patel U, Ocola LE, Divan R, Koshelev A, Pearson J, Welp U, Kwok WK.

Phys Rev Lett. 2008 Aug 15;101(7):077003. Epub 2008 Aug 14.

PMID:
18764568
24.

Emission of coherent THz radiation from superconductors.

Ozyuzer L, Koshelev AE, Kurter C, Gopalsami N, Li Q, Tachiki M, Kadowaki K, Yamamoto T, Minami H, Yamaguchi H, Tachiki T, Gray KE, Kwok WK, Welp U.

Science. 2007 Nov 23;318(5854):1291-3.

25.

Charge separation and surface reconstruction: a Mn2+ doping study.

Saponjic ZV, Dimitrijevic NM, Poluektov OG, Chen LX, Wasinger E, Welp U, Tiede DM, Zuo X, Rajh T.

J Phys Chem B. 2006 Dec 21;110(50):25441-50.

PMID:
17165991
26.

Subwavelength focusing and guiding of surface plasmons.

Yin L, Vlasko-Vlasov VK, Pearson J, Hiller JM, Hua J, Welp U, Brown DE, Kimball CW.

Nano Lett. 2005 Jul;5(7):1399-402.

PMID:
16178246
27.

Nanowires and nanoribbons of charge-density-wave conductor NbSe3.

Hor YS, Xiao ZL, Welp U, Ito Y, Mitchell JF, Cook RE, Kwok WK, Crabtree GW.

Nano Lett. 2005 Feb;5(2):397-401.

PMID:
15794632
28.

Dendritic flux avalanches and nonlocal electrodynamics in thin superconducting films.

Aranson IS, Gurevich A, Welling MS, Wijngaarden RJ, Vlasko-Vlasov VK, Vinokur VM, Welp U.

Phys Rev Lett. 2005 Jan 28;94(3):037002. Epub 2005 Jan 24.

PMID:
15698308
29.

Four-unit-cell superstructure in the optimally doped YBa2Cu3O6.92 superconductor.

Islam Z, Liu X, Sinha SK, Lang JC, Moss SC, Haskel D, Srajer G, Wochner P, Lee DR, Haeffner DR, Welp U.

Phys Rev Lett. 2004 Oct 8;93(15):157008. Epub 2004 Oct 7.

PMID:
15524931
30.

Tuning the architecture of mesostructures by electrodeposition.

Xiao ZL, Han CY, Kwok WK, Wang HH, Welp U, Wang J, Crabtree GW.

J Am Chem Soc. 2004 Mar 3;126(8):2316-7.

PMID:
14982430
31.

Crystal-lattice coupling to the vortex-melting transition in YBa(2)Cu(3)O(7-delta).

Lortz R, Meingast C, Welp U, Kwok WK, Crabtree GW.

Phys Rev Lett. 2003 Jun 13;90(23):237002. Epub 2003 Jun 9.

PMID:
12857281
32.

Magnetic domain structure and magnetic anisotropy in Ga1-xMn(x)As.

Welp U, Vlasko-Vlasov VK, Liu X, Furdyna JK, Wojtowicz T.

Phys Rev Lett. 2003 Apr 25;90(16):167206. Epub 2003 Apr 24.

PMID:
12732004
33.

An unusual phase transition to a second liquid vortex phase in the superconductor YBa2Cu3O7.

Bouquet F, Marcenat C, Steep E, Calemczuk R, Kwok WK, Welp U, Crabtree GW, Fisher RA, Phillips NE, Schilling A.

Nature. 2001 May 24;411(6836):448-51.

PMID:
11373670
34.

Field induced biquadratic exchange in hard/soft ferromagnetic bilayers.

Vlasko-Vlasov VK, Welp U, Jiang JS, Miller DJ, Crabtree GW, Bader SD.

Phys Rev Lett. 2001 May 7;86(19):4386-9.

PMID:
11328181
35.

Electrostatically driven granular media: phase transitions and coarsening

Aranson IS, Blair D, Kalatsky VA, Crabtree GW, Kwok W, Vinokur VM, Welp U.

Phys Rev Lett. 2000 Apr 10;84(15):3306-9.

PMID:
11019076
36.

Direct magneto-optical observation of a structural phase transition in thin films of manganites.

Vlasko-Vlasov VK, Lin YK, Miller DJ, Welp U, Crabtree GW, Nikitenko VI.

Phys Rev Lett. 2000 Mar 6;84(10):2239-42.

PMID:
11017253
37.

Comment on "Tensor Magnetothermal Resistance in YBa2Cu3O7-x via Andreev Scattering of Quasiparticles"

Klemm RA, Goldman AM, Bhattacharya A, Buan J, Israeloff NE, Huang CC, Valls OT, Liu JZ, Shelton RN, Welp U.

Phys Rev Lett. 1996 Sep 30;77(14):3058. No abstract available.

PMID:
10062122
38.

Static and Dynamic Vortex Phases in YBa2Cu3O7- delta.

Fendrich JA, Welp U, Kwok WK, Koshelev AE, Crabtree GW, Veal BW.

Phys Rev Lett. 1996 Sep 2;77(10):2073-2076. No abstract available.

PMID:
10061850
39.

Thermodynamic evidence for a flux line lattice melting transition in YBa2 Cu3O7- delta.

Welp U, Fendrich JA, Kwok WK, Crabtree GW, Veal BW.

Phys Rev Lett. 1996 Jun 17;76(25):4809-4812. No abstract available.

PMID:
10061386
40.

Vortex avalanches at one thousandth the superconducting transition temperature.

Zieve RJ, Rosenbaum TF, Jaeger HM, Seidler GT, Crabtree GW, Welp U.

Phys Rev B Condens Matter. 1996 May 1;53(17):11849-11854. No abstract available.

PMID:
9982814
41.

Comparison of superconducting flux pinning due to ion irradiation and fishtail effects.

Xu M, Ostenson JE, Finnemore DK, Kramer MJ, Fendrich JA, Hettinger JD, Welp U, Crabtree GW, Dabrowski B, Zhang K.

Phys Rev B Condens Matter. 1996 Mar 1;53(9):5815-5817. No abstract available.

PMID:
9984187
42.

Paramagnetic Meissner effect in Nb.

Kostic P, Veal B, Paulikas AP, Welp U, Todt VR, Gu C, Geiser U, Williams JM, Carlson KD, Klemm RA.

Phys Rev B Condens Matter. 1996 Jan 1;53(2):791-801. No abstract available.

PMID:
9983035
43.

Vortex lock-in deep in the Bose glass.

Beauchamp KM, Rosenbaum TF, Welp U, Crabtree GW, Vinokur VM.

Phys Rev Lett. 1995 Nov 20;75(21):3942-3945. No abstract available.

PMID:
10059770
44.

Local probe of vortex pinning energies in the Bose glass.

Beauchamp KM, Radzihovsky L, Shung E, Rosenbaum TF, Welp U, Crabtree GW.

Phys Rev B Condens Matter. 1995 Nov 1;52(17):13025-13028. No abstract available.

PMID:
9980476
45.

Welp et al. reply.

Welp U, Gardiner T, Gunter DO, Veal BW, Crabtree GW, Vlasko-Vlasov VK, Nikitenko VI VI.

Phys Rev Lett. 1995 May 1;74(18):3713. No abstract available.

PMID:
10058278
46.

Order of the fundamental vortex transformation in YBa2Cu3O7- delta.

Farrell DE, Kwok WK, Welp U, Fendrich J, Crabtree GW.

Phys Rev B Condens Matter. 1995 Apr 1;51(14):9148-9154. No abstract available.

PMID:
9977556
47.

Low temperature action in YBa2Cu3O7- delta.

Seidler GT, Rosenbaum TF, Beauchamp KM, Jaeger HM, Crabtree GW, Welp U, Vinokur VM.

Phys Rev Lett. 1995 Feb 20;74(8):1442-1445. No abstract available.

PMID:
10059021
48.

Vortex liquid state in an electron irradiated untwinned YBa2Cu3O7- delta crystal.

Fendrich JA, Kwok WK, Giapintzakis J, van der Beek CJ, Vinokur VM, Fleshler S, Welp U, Viswanathan HK, Crabtree GW.

Phys Rev Lett. 1995 Feb 13;74(7):1210-1213. No abstract available.

PMID:
10058962
49.

Study of the influence of individual twin boundaries on the magnetic flux penetration in YBa2Cu3O7- delta.

Vlasko-Vlasov VK, Dorosinskii LA, Polyanskii AA, Nikitenko VI VI, Welp U, Veal BW, Crabtree GW.

Phys Rev Lett. 1994 May 16;72(20):3246-3249. No abstract available.

PMID:
10056144
50.

Magnetic anisotropy in single-crystal rare-earth-doped RBa2Cu4O8 (R=Y, Dy, Gd, Ho, Er, Tm, Yb).

Nichols DH, Dabrowski B, Welp U, Crow JE.

Phys Rev B Condens Matter. 1994 Apr 1;49(13):9150-9156. No abstract available.

PMID:
10009697

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