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Showing 1 to 12 of 35 entries
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Commensurate spin density wave in LaFeAsO: a local probe study.

Physical review letters

Klauss HH, Luetkens H, Klingeler R, Hess C, Litterst FJ, Kraken M, Korshunov MM, Eremin I, Drechsler SL, Khasanov R, Amato A, Hamann-Borrero J, Leps N, Kondrat A, Behr G, Werner J, Büchner B.
PMID: 18764570
Phys Rev Lett. 2008 Aug 15;101(7):077005. doi: 10.1103/PhysRevLett.101.077005. Epub 2008 Aug 14.

We present a detailed study on the magnetic order in the undoped mother compound LaFeAsO of the recently discovered Fe-based superconductor LaFeAsO1-xFx. In particular, we present local probe measurements of the magnetic properties of LaFeAsO by means of 57Fe...

Field-induced coupled superconductivity and spin density wave order in the heavy fermion compound CeCoIn5.

Physical review letters

Spehling J, Heffner RH, Sonier JE, Curro N, Wang CH, Hitti B, Morris G, Bauer ED, Sarrao JL, Litterst FJ, Klauss HH.
PMID: 20366166
Phys Rev Lett. 2009 Dec 04;103(23):237003. doi: 10.1103/PhysRevLett.103.237003. Epub 2009 Dec 02.

The high-field superconducting state in CeCoIn(5) has been studied by transverse field muon spin rotation measurements with an applied field parallel to the crystallographic c axis close to the upper critical field mu(0)H(c2) = 4.97 T. At magnetic fields...

Successful noninvasive ventilation and enzyme replacement therapy in an adult patient with morbus hunter.

JIMD reports

Westhoff M, Litterst P.
PMID: 23430920
JIMD Rep. 2012;5:77-82. doi: 10.1007/8904_2011_100. Epub 2011 Dec 16.

M. Hunter is characterized by an accumulation of mucopolysaccharides in cells, blood, and connective tissue as a consequence of a deficiency of the enzyme iduronate-2-sulfatase. Unlike enzyme replacement therapy with idursulfase in children, there is limited long-term experience in...

MCC/IMS signals in human breath related to sarcoidosis-results of a feasibility study using an automated peak finding procedure.

Journal of breath research

Bunkowski A, Bödeker B, Bader S, Westhoff M, Litterst P, Baumbach JI.
PMID: 21386194
J Breath Res. 2009 Dec;3(4):046001. doi: 10.1088/1752-7155/3/4/046001. Epub 2009 Sep 23.

A feasibility study using an ion mobility spectrometer coupled with a multi-capillary column (MCC) was started to identify characteristic peaks of volatile compounds in exhaled human breath samples of 10 ml volume. The breath of 20 patients with sarcoidosis...

Magnetic properties of NpGa2 and NpSi2.

Physical review. B, Condensed matter

Fredo S, Gal J, Kalvius GM, Litterst FJ, Potzel W, Yaar I.
PMID: 10000864
Phys Rev B Condens Matter. 1992 May 01;45(17):9765-9771. doi: 10.1103/physrevb.45.9765.

No abstract available.

Spin-glass behavior of AFe4Al8 (A=Th,U,Np) intermetallics.

Physical review. B, Condensed matter

Aggarwal K, Arbaboff E, Fredo S, Gal J, Kalvius GM, Litterst FJ, Pereda JA, Potzel W, Regev D, Schäfer W, Shani G, Will G, Yaar I.
PMID: 9995027
Phys Rev B Condens Matter. 1990 Nov 01;42(13):8507-8516. doi: 10.1103/physrevb.42.8507.

No abstract available.

Size dependent structural and magnetic properties of FeO-Fe3O4 nanoparticles.

Nanoscale

Lak A, Kraken M, Ludwig F, Kornowski A, Eberbeck D, Sievers S, Litterst FJ, Weller H, Schilling M.
PMID: 24154669
Nanoscale. 2013 Dec 21;5(24):12286-95. doi: 10.1039/c3nr04562e.

The magnetic properties of monodisperse FeO-Fe3O4 nanoparticles with different mean sizes and volume fractions of FeO synthesized via decomposition of iron oleate were correlated to their crystallographic and phase compositional features by exploiting high resolution transmission electron microscopy, X-ray...

Cardiopulmonary Exercise Testing in Combined Pulmonary Fibrosis and Emphysema.

Respiration; international review of thoracic diseases

Westhoff M, Litterst P, Ewert R.
PMID: 33657565
Respiration. 2021;100(5):395-403. doi: 10.1159/000513848. Epub 2021 Mar 03.

BACKGROUND: Combined pulmonary fibrosis and emphysema (CPFE) is a distinct entity among fibrosing lung diseases with a high risk for lung cancer and pulmonary hypertension (PH). Notably, concomitant PH was identified as a negative prognostic indicator that could help...

A general approach to high-efficiency perovskite solar cells by any antisolvent.

Nature communications

Taylor AD, Sun Q, Goetz KP, An Q, Schramm T, Hofstetter Y, Litterst M, Paulus F, Vaynzof Y.
PMID: 33767163
Nat Commun. 2021 Mar 25;12(1):1878. doi: 10.1038/s41467-021-22049-8.

Deposition of perovskite films by antisolvent engineering is a highly common method employed in perovskite photovoltaics research. Herein, we report on a general method that allows for the fabrication of highly efficient perovskite solar cells by any antisolvent via...

Magnetic Simulations of Core-Shell Ferromagnetic Bi-Magnetic Nanoparticles: The Influence of Antiferromagnetic Interfacial Exchange.

Nanomaterials (Basel, Switzerland)

Ramos-Guivar JA, Tamanaha-Vegas CA, Litterst FJ, Passamani EC.
PMID: 34073692
Nanomaterials (Basel). 2021 May 24;11(6). doi: 10.3390/nano11061381.

Magnetic properties of ferromagnetic nanostructures were studied by atomistic simulations following Monte Carlo and Landau-Lifshitz-Gilbert approaches. First, we investigated the influence of particle size and shape on the temperature dependence of magnetization for single cobalt and gadolinium nanoparticles and...

Oxidation states of Co and Fe in Ba(1-x)Sr(x)Co(1-y)Fe(y)O(3-delta) (x, y = 0.2-0.8) and oxygen desorption in the temperature range 300-1273 K.

Physical chemistry chemical physics : PCCP

Harvey AS, Litterst FJ, Yang Z, Rupp JL, Infortuna A, Gauckler LJ.
PMID: 19370203
Phys Chem Chem Phys. 2009 May 07;11(17):3090-8. doi: 10.1039/b819414a. Epub 2009 Feb 11.

Four compositions of Ba(1-x)Sr(x)Co(1-y)Fe(y)O(3-delta) were studied for phase, oxygen uptake-release, and transition metal (TM) oxidation states after solid state processing and with in situ heating from 300 to 1273 K in air. X-Ray diffraction showed that all compositions except...

Giant spin canting in the S=1/2 antiferromagnetic chain [CuPM(NO3)2(H2O)2]n observed by 13C-NMR.

Physical review letters

Wolter AU, Wzietek P, Süllow S, Litterst FJ, Honecker A, Brenig W, Feyerherm R, Klauss HH.
PMID: 15783689
Phys Rev Lett. 2005 Feb 11;94(5):057204. doi: 10.1103/PhysRevLett.94.057204. Epub 2005 Feb 08.

We present a combined experimental and theoretical study on copper pyrimidine dinitrate [CuPM(NO3)2(H2O)2]n, a one-dimensional S=1/2 antiferromagnet with alternating local symmetry. From the local susceptibility measured by NMR at the three inequivalent carbon sites in the pyrimidine molecule we...

Showing 1 to 12 of 35 entries