Coexistence of charge and ferromagnetic order in fcc Fe
Please always quote using this URN: urn:nbn:de:bvb:20-opus-173969
- Phase coexistence phenomena have been intensively studied in strongly correlated materials where several ordered states simultaneously occur or compete. Material properties critically depend on external parameters and boundary conditions, where tiny changes result in qualitatively different ground states. However, up to date, phase coexistence phenomena have exclusively been reported for complex compounds composed of multiple elements. Here we show that charge- and magnetically ordered states coexist in double-layer Fe/Rh(001). ScanningPhase coexistence phenomena have been intensively studied in strongly correlated materials where several ordered states simultaneously occur or compete. Material properties critically depend on external parameters and boundary conditions, where tiny changes result in qualitatively different ground states. However, up to date, phase coexistence phenomena have exclusively been reported for complex compounds composed of multiple elements. Here we show that charge- and magnetically ordered states coexist in double-layer Fe/Rh(001). Scanning tunnelling microscopy and spectroscopy measurements reveal periodic charge-order stripes below a temperature of 130 K. Close to liquid helium temperature, they are superimposed by ferromagnetic domains as observed by spin-polarized scanning tunnelling microscopy. Temperature-dependent measurements reveal a pronounced cross-talk between charge and spin order at the ferromagnetic ordering temperature about 70 K, which is successfully modelled within an effective Ginzburg–Landau ansatz including sixth-order terms. Our results show that subtle balance between structural modifications can lead to competing ordering phenomena.…
Author: | Pin-Jui Hsu, Jens Kügel, Jeannette Kemmer, Francesco Parisen Toldin, Tobias Mauerer, Matthias Vogt, Fakher Assaad, Matthias Bode |
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URN: | urn:nbn:de:bvb:20-opus-173969 |
Document Type: | Journal article |
Faculties: | Fakultät für Physik und Astronomie / Physikalisches Institut |
Fakultät für Physik und Astronomie / Institut für Theoretische Physik und Astrophysik | |
Language: | English |
Parent Title (English): | Nature Communications |
Year of Completion: | 2016 |
Volume: | 7 |
Article Number: | 10949 |
Source: | Nature Communications 2016, 7:10949. DOI: 10.1038/ncomms10949 |
DOI: | https://doi.org/10.1038/ncomms10949 |
Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 538 Magnetismus |
Tag: | coexistence; ferromagnetism; phase transitions and critical phenomena |
Release Date: | 2020/12/09 |
Licence (German): | CC BY: Creative-Commons-Lizenz: Namensnennung 4.0 International |