Electronic structure reconstruction ofCa1−xPrxFe2As2in the collapsed tetragonal phase
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چکیده
منابع مشابه
Persistent Fe moments in the normal-state collapsed-tetragonal phase of the pressure-induced superconductor Ca0.67Sr0.33Fe2As2
J. R. Jeffries,1 N. P. Butch,1,2 M. J. Lipp,1 J. A. Bradley,1 K. Kirshenbaum,3 S. R. Saha,3 J. Paglione,3 C. Kenney-Benson,4 Y. Xiao,4 P. Chow,4 and W. J. Evans1 1Condensed Matter and Materials Division, Lawrence Livermore National Laboratory, Livermore, California 94550, USA 2NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA 3Ce...
متن کاملFormation of As-As Interlayer Bonding in the collapsed tetragonal phase of NaFe2As2 under pressure
NaFe2As2 is investigated experimentally using powder x-ray diffraction and Raman spectroscopy at pressures up to 23 GPa at room temperature and using ab-initio calculations. The results reveal a pressure-induced structural modification at 4 GPa from the starting tetragonal to a collapsed tetragonal phase. We determined the changes in interatomic distances under pressure that allowed us to conne...
متن کاملPressure suppression of electron correlation in the collapsed tetragonal phase of CaFe2As2: A DFT-DMFT investigation
Subhasish Mandal,1,* R. E. Cohen,1,2 and K. Haule3 1Geophysical Laboratory, Carnegie Institution of Washington, Washington, DC 20015, USA 2Department of Earth Sciences, University College London, Gower Street, London WC1E 6BT, United Kingdom 3Department of Physics, Rutgers University, Piscataway, New Jersey 08854, USA (Received 21 May 2014; revised manuscript received 14 July 2014; published 6 ...
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The static and the dynamic spin correlations in the low-temperature collapsed tetragonal and the hightemperature tetragonal phase in CaFe2As2 have been investigated by As75 nuclear magnetic resonance (NMR) and nuclear quadrupole resonance (NQR) measurements. Through the temperature (T) dependence of the nuclear spin lattice relaxation rates (1/T1) and the Knight shifts, although stripe-type ant...
متن کاملHigh-temperature superconductivity stabilized by electron-hole interband coupling in collapsed tetragonal phase of KFe2As2 under high pressure
Yasuyuki Nakajima,1 Renxiong Wang,1 Tristin Metz,1 Xiangfeng Wang,1 Limin Wang,1 Hyunchae Cynn,2 Samuel T. Weir,2 Jason R. Jeffries,2 and Johnpierre Paglione1 1Center for Nanophysics and Advanced Materials, Department of Physics, University of Maryland, College Park, Maryland 20742, USA 2Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94550, USA (Received 16 Janu...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2014
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.90.214519