Fruchter L, Brouet V. The 'dark phase' in Sr
2Ir
1-xRh
xO
4revealed by Seebeck and Hall measurements.
JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2021;
33:215602. [PMID:
33652426 DOI:
10.1088/1361-648x/abeb45]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 03/02/2021] [Indexed: 06/12/2023]
Abstract
It was found that, although isovalent, Rh substituted for Ir in Sr2IrO4may trap one electron inducing effective hole doping of Ir sites. Transport and thermoelectric measurements on Sr2Ir1-xRhxO4single crystals presented here reveal the existence of an electron-like contribution to transport, in addition to the hole-doped one. As no electron band shows up in ARPES measurements, this points to the possibility that this hidden electron may delocalize in disordered clusters.
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