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Langmann J, Kepenci H, Eickerling G, Batke K, Jesche A, Xu M, Canfield P, Scherer W. Experimental X-ray Charge-Density Studies─A Suitable Probe for Superconductivity? A Case Study on MgB 2. J Phys Chem A 2022; 126:8494-8507. [DOI: 10.1021/acs.jpca.2c05925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jan Langmann
- CPM, Institut für Physik, Universität Augsburg, 86159Augsburg, Germany
| | - Hasan Kepenci
- CPM, Institut für Physik, Universität Augsburg, 86159Augsburg, Germany
| | - Georg Eickerling
- CPM, Institut für Physik, Universität Augsburg, 86159Augsburg, Germany
| | - Kilian Batke
- CPM, Institut für Physik, Universität Augsburg, 86159Augsburg, Germany
| | - Anton Jesche
- Experimentalphysik VI, Zentrum für Elektronische Korrelation und Magnetismus, Institut für Physik, Universität Augsburg, Augsburg86159, Germany
| | - Mingyu Xu
- The Ames Laboratory, Iowa State University, Ames, Iowa50011, United States
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa50011, United States
| | - Paul Canfield
- The Ames Laboratory, Iowa State University, Ames, Iowa50011, United States
- Department of Physics and Astronomy, Iowa State University, Ames, Iowa50011, United States
| | - Wolfgang Scherer
- CPM, Institut für Physik, Universität Augsburg, 86159Augsburg, Germany
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Fischer A, Langmann J, Vöst M, Eickerling G, Scherer W. HTD2: a single-crystal X-ray diffractometer for combined high-pressure/low-temperature experiments at laboratory scale. J Appl Crystallogr 2022; 55:1255-1266. [PMID: 36249492 PMCID: PMC9533757 DOI: 10.1107/s160057672200766x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 07/27/2022] [Indexed: 11/13/2022] Open
Abstract
High-pressure (HP) X-ray diffraction experiments at low temperature (LT) require dedicated instruments as well as non-standard sample environments and measuring strategies. This is especially true when helium cryogenic temperatures below 80 K are targeted. Furthermore, only experiments on single-crystalline samples provide the prerequisites to study subtle structural changes in the p-T phase diagram under extreme LT and HP conditions in greater detail. Due to special hardware requirements, such measurements are usually in the realm of synchrotron beamlines. This contribution describes the design of an LT/HP diffractometer (HTD2) to perform single-crystal X-ray diffraction experiments using a laboratory source in the temperature range 400 > T > 2 K while applying pressures of up to 20 GPa.
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Affiliation(s)
- Andreas Fischer
- CPM, Institut für Physik, Universität Augsburg, 86159 Augsburg, Germany
| | - Jan Langmann
- CPM, Institut für Physik, Universität Augsburg, 86159 Augsburg, Germany
| | - Marcel Vöst
- CPM, Institut für Physik, Universität Augsburg, 86159 Augsburg, Germany
| | - Georg Eickerling
- CPM, Institut für Physik, Universität Augsburg, 86159 Augsburg, Germany
| | - Wolfgang Scherer
- CPM, Institut für Physik, Universität Augsburg, 86159 Augsburg, Germany
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