000873960 001__ 873960
000873960 005__ 20250129094334.0
000873960 0247_ $$2Handle$$a2128/24363
000873960 037__ $$aFZJ-2020-01123
000873960 041__ $$aEnglish
000873960 1001_ $$0P:(DE-Juel1)177699$$aEich, Andreas$$b0$$ufzj
000873960 1112_ $$aJoint Polish-German Crystallographic Meeting 2020$$cCongress Center Wrocław University of Science and Technology$$d2020-02-24 - 2020-02-27$$wPoland
000873960 245__ $$aStructural and macroscopic investigation of CrAs at low temperatures and high pressures
000873960 260__ $$c2020
000873960 3367_ $$033$$2EndNote$$aConference Paper
000873960 3367_ $$2DataCite$$aOther
000873960 3367_ $$2BibTeX$$aINPROCEEDINGS
000873960 3367_ $$2DRIVER$$aconferenceObject
000873960 3367_ $$2ORCID$$aLECTURE_SPEECH
000873960 3367_ $$0PUB:(DE-HGF)6$$2PUB:(DE-HGF)$$aConference Presentation$$bconf$$mconf$$s1582105299_3364$$xInvited
000873960 520__ $$aChromium Arsenide (CrAs) is the first Cr-based superconductor, exhibiting pressure-induced superconductivity with a maximum Tc = 2.2 K at around 1 GPa [1,2] and the dome-like shaped superconducting phase region existing in the vicinity of a magnetically ordered state. The magnetic structure is described as double helices propagating along the c* direction with the spins in the (a,b) plane. The first-order phase transition from the helimagnetically ordered antiferromagnetic state to a paramagnetic state is clearly and consistently observed in our macroscopic measurements of magnetization, resistivity and heat capacity at TN ≈ 267 K. The transition is furthermore connected to an abrupt increase in unit cell volume of about 2.4%, though the symmetry of the crystal structure (Pnma, Z = 4) does presumably not change [3].As the understanding of the behaviour of the crystal structure of CrAs so far is based primarily on powder data, the objective of our work is to precisely determine the crystal structure by single crystal diffraction at low temperatures as well as at high pressures. This knowledge will serve as base for further studies of the crystal and magnetic structures of CrAs at simultaneously low temperatures and high pressures, in particular within or in the vicinity of the superconducting phase.For this, synchrotron x-ray diffraction experiments were performed on single crystals between 300 K and 20 K at ambient pressure, and between 0.92 GPa and 9.45 GPa at room temperature.The preliminary refinements show a good agreement with the literature data for the room temperature phase. Below the transition temperature the symmetry Pnma is preserved and the reflections can still be indexed with the orthorhombic cell, although a deterioration of the crystal quality is observed.[1] R.Y. Chen, N.L. Wang, Rep. Prog. Phys. 82, 012503 (2019)[2] W. Wu, et al., Nat. Commun. 5, 5508 (2014)[3] T. Suzuki, H. Ido, J. Appl. Phys. 69, 4624 (1991)
000873960 536__ $$0G:(DE-HGF)POF3-144$$a144 - Controlling Collective States (POF3-144)$$cPOF3-144$$fPOF III$$x0
000873960 536__ $$0G:(DE-HGF)POF3-524$$a524 - Controlling Collective States (POF3-524)$$cPOF3-524$$fPOF III$$x1
000873960 536__ $$0G:(DE-HGF)POF3-6212$$a6212 - Quantum Condensed Matter: Magnetism, Superconductivity (POF3-621)$$cPOF3-621$$fPOF III$$x2
000873960 536__ $$0G:(DE-HGF)POF3-6213$$a6213 - Materials and Processes for Energy and Transport Technologies (POF3-621)$$cPOF3-621$$fPOF III$$x3
000873960 536__ $$0G:(DE-HGF)POF3-6G4$$a6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)$$cPOF3-623$$fPOF III$$x4
000873960 693__ $$0EXP:(DE-MLZ)DNS-20140101$$1EXP:(DE-MLZ)FRMII-20140101$$5EXP:(DE-MLZ)DNS-20140101$$6EXP:(DE-MLZ)NL6S-20140101$$aForschungs-Neutronenquelle Heinz Maier-Leibnitz $$eDNS: Diffuse scattering neutron time of flight spectrometer$$fNL6S$$x0
000873960 7001_ $$0P:(DE-HGF)0$$aGrzechnik, A.$$b1
000873960 7001_ $$0P:(DE-Juel1)156453$$aMüller, Thomas$$b2$$ufzj
000873960 7001_ $$0P:(DE-HGF)0$$aPaulmann, C.$$b3
000873960 7001_ $$0P:(DE-Juel1)145694$$aFriese, K.$$b4$$ufzj
000873960 8564_ $$uhttps://juser.fz-juelich.de/record/873960/files/___Abstract_DGK2020_Eich.pdf$$yOpenAccess
000873960 8564_ $$uhttps://juser.fz-juelich.de/record/873960/files/___Abstract_DGK2020_Eich.pdf?subformat=pdfa$$xpdfa$$yOpenAccess
000873960 909CO $$ooai:juser.fz-juelich.de:873960$$pVDB:MLZ$$pdriver$$pVDB$$popen_access$$popenaire
000873960 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)177699$$aForschungszentrum Jülich$$b0$$kFZJ
000873960 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)156453$$aForschungszentrum Jülich$$b2$$kFZJ
000873960 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)145694$$aForschungszentrum Jülich$$b4$$kFZJ
000873960 9131_ $$0G:(DE-HGF)POF3-144$$1G:(DE-HGF)POF3-140$$2G:(DE-HGF)POF3-100$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$aDE-HGF$$bEnergie$$lFuture Information Technology - Fundamentals, Novel Concepts and Energy Efficiency (FIT)$$vControlling Collective States$$x0
000873960 9131_ $$0G:(DE-HGF)POF3-524$$1G:(DE-HGF)POF3-520$$2G:(DE-HGF)POF3-500$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$aDE-HGF$$bKey Technologies$$lFuture Information Technology - Fundamentals, Novel Concepts and Energy Efficiency (FIT)$$vControlling Collective States$$x1
000873960 9131_ $$0G:(DE-HGF)POF3-621$$1G:(DE-HGF)POF3-620$$2G:(DE-HGF)POF3-600$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$9G:(DE-HGF)POF3-6212$$aDE-HGF$$bForschungsbereich Materie$$lVon Materie zu Materialien und Leben$$vIn-house research on the structure, dynamics and function of matter$$x2
000873960 9131_ $$0G:(DE-HGF)POF3-621$$1G:(DE-HGF)POF3-620$$2G:(DE-HGF)POF3-600$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$9G:(DE-HGF)POF3-6213$$aDE-HGF$$bForschungsbereich Materie$$lVon Materie zu Materialien und Leben$$vIn-house research on the structure, dynamics and function of matter$$x3
000873960 9131_ $$0G:(DE-HGF)POF3-623$$1G:(DE-HGF)POF3-620$$2G:(DE-HGF)POF3-600$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$9G:(DE-HGF)POF3-6G4$$aDE-HGF$$bForschungsbereich Materie$$lVon Materie zu Materialien und Leben$$vFacility topic: Neutrons for Research on Condensed Matter$$x4
000873960 9141_ $$y2020
000873960 915__ $$0StatID:(DE-HGF)0510$$2StatID$$aOpenAccess
000873960 9201_ $$0I:(DE-Juel1)JCNS-2-20110106$$kJCNS-2$$lStreumethoden$$x0
000873960 9201_ $$0I:(DE-Juel1)PGI-4-20110106$$kPGI-4$$lStreumethoden$$x1
000873960 9201_ $$0I:(DE-82)080009_20140620$$kJARA-FIT$$lJARA-FIT$$x2
000873960 9201_ $$0I:(DE-Juel1)JCNS-FRM-II-20110218$$kJCNS-FRM-II$$lJCNS-FRM-II$$x3
000873960 9801_ $$aFullTexts
000873960 980__ $$aconf
000873960 980__ $$aVDB
000873960 980__ $$aUNRESTRICTED
000873960 980__ $$aI:(DE-Juel1)JCNS-2-20110106
000873960 980__ $$aI:(DE-Juel1)PGI-4-20110106
000873960 980__ $$aI:(DE-82)080009_20140620
000873960 980__ $$aI:(DE-Juel1)JCNS-FRM-II-20110218
000873960 981__ $$aI:(DE-Juel1)JCNS-2-20110106