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Title: Epitaxial growth, magnetoresistance, and electronic band structure of GdSb magnetic semimetal films

Journal Article · · Physical Review Materials
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [1];  [1]; ORCiD logo [5]; ORCiD logo [1];  [6]; ORCiD logo [7]; ORCiD logo [8]; ORCiD logo [8]; ORCiD logo [9]; ORCiD logo [10]; ORCiD logo [11]
  1. University of California Santa Barbara, Santa Barbara, CA (United States)
  2. University of Delaware, Newark, DE (United States); Quy Nhon University, Quy Nhon (Vietnam)
  3. University of California Santa Barbara, Santa Barbara, CA (United States); Tata Institute of Fundamental Research Mumbai, (India)
  4. University of California Santa Barbara, Santa Barbara, CA (United States); Stanford University, Stanford, CA (United States)
  5. University of Delaware, Newark, DE (United States); National University of Science and Technology, Islamabad (Pakistan)
  6. University of California Santa Barbara, Santa Barbara, CA (United States); Stanford University, Stanford, CA (United States) Princeton University, Princeton, NJ (United States)
  7. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
  8. SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
  9. University of California Santa Barbara, Santa Barbara, CA (United States); Cardiff University, Cardiff (United Kingdom)
  10. University of Delaware, Newark, DE (United States)
  11. University of California Santa Barbara, Santa Barbara, CA (United States);

Motivated by observations of extreme magnetoresistance (XMR) in bulk crystals of rare-earth monopnictide (RE-V) compounds and emerging applications in novel spintronic and plasmonic devices based on thin-film semimetals, we have investigated the electronic band structure and transport behavior of epitaxial GdSb thin films grown on III-V semiconductor surfaces. The Gd3+ ion in GdSb has a high spin S=7/2 and no orbital angular momentum, serving as a model system for studying the effects of antiferromagnetic order and strong exchange coupling on the resulting Fermi surface and magnetotransport properties of RE-Vs. Here, we present a surface and structural characterization study mapping the optimal synthesis window of thin epitaxial GdSb films grown on III-V lattice-matched buffer layers via molecular-beam epitaxy. To determine the factors limiting XMR in RE-V thin films and provide a benchmark for band-structure predictions of topological phases of RE-Vs, the electronic band structure of GdSb thin films is studied, comparing carrier densities extracted from magnetotransport, angle-resolved photoemission spectroscopy (ARPES), and density-functional theory (DFT) calculations. ARPES shows a hole-carrier rich, topologically trivial, semimetallic band structure close to complete electron-hole compensation, with quantum confinement effects in the thin films observed through the presence of quantum-well states. DFT-predicted Fermi wave vectors are in excellent agreement with values obtained from quantum oscillations observed in magnetic field-dependent resistivity measurements. An electron-rich Hall coefficient is measured despite the higher hole-carrier density, attributed to the higher electron Hall mobility. The carrier mobilities are limited by surface and interface scattering, resulting in lower magnetoresistance than that measured for bulk crystals.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF)
Grant/Contract Number:
AC02-05CH11231; SC0014388; DMR-1507875; AC02-76SF00515; DMR 1720256; DMR-1906325; DMR-2011824
OSTI ID:
1985504
Journal Information:
Physical Review Materials, Vol. 6, Issue 12; ISSN 2475-9953
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (76)

Room-temperature terahertz anomalous Hall effect in Weyl antiferromagnet Mn3Sn thin films journal February 2020
Tunable electronic structure and surface states in rare-earth monobismuthides with partially filled f shell journal August 2018
Measurement of the atomic orbital composition of the near-fermi-level electronic states in the lanthanum monopnictides LaBi, LaSb, and LaAs journal May 2018
Stable and epitaxial metal/III-V semiconductor heterostructures journal January 1990
Roadmap of Spin–Orbit Torques journal July 2021
Hybrid functionals based on a screened Coulomb potential journal May 2003
Extreme magnetoresistance and Shubnikov-de Haas oscillations in ferromagnetic DySb journal August 2018
Electronic structure of the metallic antiferromagnet PdCrO 2 measured by angle-resolved photoemission spectroscopy journal September 2013
Extracting E versus k effective band structure from supercell calculations on alloys and impurities journal February 2012
Observation of topological surface states and strong electron/hole imbalance in extreme magnetoresistance compound LaBi journal February 2018
Linear magnetoresistance due to multiple-electron scattering by low-mobility islands in an inhomogeneous conductor journal January 2012
Weak antilocalization in quasi-two-dimensional electronic states of epitaxial LuSb thin films journal March 2019
Dirac Nodal Line Metal for Topological Antiferromagnetic Spintronics journal February 2019
Role of the Electron Spin Polarization in Water Splitting journal December 2015
Emergence of Fermi arcs due to magnetic splitting in an antiferromagnet journal March 2022
Enhanced Room-Temperature Geometric Magnetoresistance in Inhomogeneous Narrow-Gap Semiconductors journal September 2000
Electrons and Phonons book January 2001
Extreme magnetoresistance in magnetic rare-earth monopnictides journal February 2018
Epitaxial growth of ErAs on (100)GaAs journal December 1988
Lattice‐matched Sc 1− x Er x As/GaAs heterostructures: A demonstration of new systems for fabricating lattice‐matched metallic compounds to semiconductors journal January 1990
A review on hot cathode ionisation gauges with focus on a suitable design for measurement accuracy and stability journal September 2020
Topological semimetal state and field-induced Fermi surface reconstruction in the antiferromagnetic monopnictide NdSb journal March 2018
Transport of Topological Semimetals journal July 2019
Mechanism of anomalously weak magnetic scattering in Gd monopnictides journal February 1997
Antiferromagnetic opto-spintronics journal March 2018
Erratum: “Hybrid functionals based on a screened Coulomb potential” [J. Chem. Phys. 118, 8207 (2003)] journal June 2006
Magnetic sensors and their applications journal June 2006
Transport properties of stoichiometric and nonstoichiometric GdAs single crystals journal July 1996
Ab initiomolecular dynamics for liquid metals journal January 1993
XPS and X-BIS Studies of Gd Monopnictides journal April 1996
Magnetoelastic quantum oscillations in GdSb to 55 T journal January 2011
ErAs interlayers for limiting interfacial reactions in Fe/GaAs(100) heterostructures
  • Schultz, B. D.; Farrell, H. H.; Evans, M. M. R.
  • Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures, Vol. 20, Issue 4 https://doi.org/10.1116/1.1491994
journal January 2002
Route towards Dirac and Weyl antiferromagnetic spintronics: Route towards Dirac and Weyl antiferromagnetic spintronics journal March 2017
Kitkaite NiTeSe, an Ambient‐Stable Layered Dirac Semimetal with Low‐Energy Type‐II Fermions with Application Capabilities in Spintronics and Optoelectronics journal September 2021
Controlling magnetoresistance by tuning semimetallicity through dimensional confinement and heteroepitaxy journal April 2021
Resistivity plateau and extreme magnetoresistance in LaSb journal December 2015
Rare-Earth Monopnictide Alloys for Tunable, Epitaxial, Designer Plasmonics journal July 2018
Topological phase transition in LaAs under pressure journal December 2018
Magnetoresistance of semiconductor-metal hybrid structures: The effects of material parameters and contact resistance journal May 2003
Nonparabolic coupled Poisson-Schrödinger solutions for quantized electron accumulation layers: Band bending, charge profile, and subbands at InN surfaces journal March 2008
Antiferromagnetic spintronics journal February 2018
Review Article: Overview of lanthanide pnictide films and nanoparticles epitaxially incorporated into III-V semiconductors
  • Bomberger, Cory C.; Lewis, Matthew R.; Vanderhoef, Laura R.
  • Journal of Vacuum Science & Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phenomena, Vol. 35, Issue 3 https://doi.org/10.1116/1.4979347
journal May 2017
Negative magnetoresistance due to conductivity fluctuations in films of the topological semimetal C d 3 A s 2 journal June 2017
Direct visualization of coexisting channels of interaction in CeSb journal March 2019
Multiple Dirac cones at the surface of the topological metal LaBi journal January 2017
Strongly Correlated Electrons in Catalysis: Focus on Quantum Exchange journal November 2021
Origin of the extremely large magnetoresistance in the semimetal YSb journal August 2017
Wannier90 as a community code: new features and applications journal January 2020
Growth and characterization of single crystal rocksalt LaAs using LuAs barrier layers journal November 2012
ErAs epitaxial layers buried in GaAs: Magnetotransport and spin-disorder scattering journal May 1989
Progress, Advantages, and Challenges of Topological Material Catalysts journal February 2022
Numerical extraction of de Haas–van Alphen frequencies from calculated band energies journal February 2012
Ab initio molecular-dynamics simulation of the liquid-metal–amorphous-semiconductor transition in germanium journal May 1994
Magnetic properties of stoichiometric Gd monopnictides journal December 1997
Effective Band Structure of Random Alloys journal June 2010
Topological insulator based spin valve devices: Evidence for spin polarized transport of spin-momentum-locked topological surface states journal August 2014
High-pressure synthesis of rare earth diantimonides journal July 1969
Electronic structure of R Sb ( R = Y , Ce, Gd, Dy, Ho, Tm, Lu) studied by angle-resolved photoemission spectroscopy journal July 2017
Effect of critical fluctuations on the electrical resistivity of GdSb and HoSb above the Néel temperature journal October 1973
Engineering Carrier Effective Masses in Ultrathin Quantum Wells of IrO 2 journal October 2018
Nonsaturating large magnetoresistance in semimetals journal October 2018
Trivial to nontrivial topology transition in rare-earth pnictides with epitaxial strain journal July 2020
Extreme magnetoresistance in the topologically trivial lanthanum monopnictide LaAs journal December 2017
Band engineering of a magnetic thin film rare-earth monopnictide: A platform for high Chern number journal October 2019
Distinct Electronic Structure for the Extreme Magnetoresistance in YSb journal December 2016
Experimental Determination of the Topological Phase Diagram in Cerium Monopnictides journal February 2018
Probing the origin of extreme magnetoresistance in Pr/Sm mono-antimonides/bismuthides journal January 2019
Terahertz Photodetection with Type‐II Dirac Fermions in Transition‐Metal Ditellurides and Their Heterostructures journal May 2021
De Haas–van Alphen study of the spin splitting of the Fermi surface in TbSb journal January 2004
Tunable electronic structure and topological properties of LnPn (Ln=Ce, Pr, Sm, Gd, Yb; Pn=Sb, Bi) journal November 2018
Interplay of magnetism and transport in HoBi journal July 2018
Embedded growth mode of thermodynamically stable metallic nanoparticles on III-V semiconductors journal June 2006
Electrical transport properties of semimetallic Gd X single crystals ( X =P, As, Sb, and Bi) journal October 1996
Local Density of States and Interface Effects in Semimetallic ErAs Nanoparticles Embedded in GaAs journal July 2011
Quantum size effects in transport properties of metallic films journal December 1988
Epitaxy of Dissimilar Materials journal August 1995