Microscopic evidence for Mn-induced long range magnetic ordering in MAX phase compounds

A Maniv; A P Reyes; S K Ramakrishna; D Graf; A Huq; D Potashnikov; O Rivin; A Pesach; Q Tao; J Rosen; I Felner; E N Caspi

doi:10.1088/1361-648X/abb998

Microscopic evidence for Mn-induced long range magnetic ordering in MAX phase compounds

J Phys Condens Matter. 2021 Jan 13;33(2):025803. doi: 10.1088/1361-648X/abb998.

Authors

A Maniv^{1

2}, A P Reyes², S K Ramakrishna², D Graf², A Huq³, D Potashnikov^{4

5}, O Rivin¹, A Pesach¹, Q Tao⁶, J Rosen⁶, I Felner⁷, E N Caspi¹

Affiliations

¹ Department of Physics, Nuclear Research Center-Negev, PO Box 9001, Beer Sheva 84190, Israel.
² National High Magnetic Field Laboratory, Tallahassee, FL 32310, United States of America.
³ Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, TN, United States of America.
⁴ Faculty of Physics, Technion-Israeli Institute of Technology, Haifa 32000, Israel.
⁵ Israel Atomic Energy Commission, PO Box 7061, Tel-Aviv 61070, Israel.
⁶ Thin Film Physics Division, Department of Physics, Chemistry, and Biology (IFM), Linkoping University, Linkoping, Sweden.
⁷ Racah Institute of Physics, Hebrew University of Jerusalem, Jerusalem 91904, Israel.

PMID: 32942268
DOI: 10.1088/1361-648X/abb998

Abstract

Zero and low field nuclear magnetic resonance measurements have been performed on MAX phase samples (Cr_1-x Mn _x )₂AC with A = Ge and Ga in order to obtain local microscopic information on the nature of magnetism in this system. Our results unambiguously provide evidence for the existence of long-range magnetic order in (Cr_0.96Mn_0.04)₂GeC and for (Cr_0.93Mn_0.07)₂GaC, but not for (Cr_0.97Mn_0.03)₂GaC. We point to a possible dependence of long range magnetic order in these MAX phase compounds on the A atom.