公开(公告)号：US20220271218A1

公开(公告)日：2022-08-25

申请号：US17249105

申请日：2021-02-19

Applicant: Regents of the University of Minnesota

Inventor： Jian-Ping Wang ,  Thomas Jon Peterson ,  Anthony William Hurben ,  Delin Zhang

IPC: H01L43/10 ,  G11C11/16 ,  H01L43/02 ,  H01L43/12 ,  H01L27/22 ,  G06N3/04

Abstract: A magnetic device may include a layer stack including a work function structure, a dielectric layer, and a ferromagnetic layer, where the ferromagnetic layer is positioned between the work function structure and the dielectric layer. The work function structure is configured to deplete electrons from the ferromagnetic layer or accumulate electrons in the ferromagnetic layer. A magnetization orientation of the ferromagnetic layer is configured to be switched by a voltage applied across the layer stack or by a voltage applied across or through the work function structure.

公开(公告)号：US11195644B2

公开(公告)日：2021-12-07

申请号：US15129439

申请日：2015-03-26

Applicant: Regents of the University of Minnesota ,  UT-BATTELLE, LLC ,  UNIVERSITY OF TENNESSEE RESEARCH FOUNDATION

Inventor： Jian-Ping Wang ,  Yanfeng Jiang ,  Craig A. Bridges ,  Michael Brady ,  Orlando Rios ,  Roberta A. Meisner ,  Lawrence F. Allard ,  Edgar Lara-Curzio ,  Shihai He

IPC: H01F1/00 ,  H01F1/047 ,  H01F1/06 ,  C23C14/06 ,  C23C14/58 ,  C23C8/34 ,  B22F1/00 ,  C22C38/00 ,  C23C14/18 ,  H01F41/02 ,  C23C14/00 ,  C23C14/16 ,  C23C14/34 ,  C23C14/56

Abstract: The disclosure describes techniques for forming nanoparticles including Fe16N2 phase. In some examples, the nanoparticles may be formed by first forming nanoparticles including iron, nitrogen, and at least one of carbon or boron. The carbon or boron may be incorporated into the nanoparticles such that the iron, nitrogen, and at least one of carbon or boron are mixed. Alternatively, the at least one of carbon or boron may be coated on a surface of a nanoparticle including iron and nitrogen. The nano particle including iron, nitrogen, and at least one of carbon or boron then may be annealed to form at least one phase domain including at least one of Fe16N2, Fe16(NB)2, Fe16(NC)2, or Fe16(NCB)2.

公开(公告)号：US10794774B2

公开(公告)日：2020-10-06

申请号：US15828976

申请日：2017-12-01

Applicant: Regents of the University of Minnesota

Inventor： Jian-Ping Wang ,  Yanfeng Jiang

IPC: G01K7/00 ,  G01K1/00 ,  G01K7/36 ,  H01L43/10 ,  G01K7/16 ,  H01L43/08

Abstract: This disclosure describes various examples of spintronic temperature sensors. The example temperature sensors may be discrete or used to adaptively control operation of a component such as an integrated circuit (IC). In one example, an electronic device comprises a spintronic component configured such that the conductance of the spintronic component is based on sensed temperature. In one example, circuitry coupled to the spintronic component is configured to generate an electrical signal indicative of the sensed temperature based on the conductance of the spintronic component.

公开(公告)号：US10546997B2

公开(公告)日：2020-01-28

申请号：US15829134

申请日：2017-12-01

Applicant: Regents of the University of Minnesota

Inventor： Jian-Ping Wang ,  Delin Zhang

IPC: G11C11/16 ,  H01L43/10 ,  H01L43/04 ,  H01L43/08 ,  G11C11/18 ,  H01L27/22 ,  H01L43/06 ,  H01L43/14

Abstract: Articles including a fixing layer and a free layer including a layer including an FePd alloy. The free layer may include a composite layer including a perpendicular synthetic antiferromagnetic (p-SAF) structure. Techniques for forming and using articles including FePd alloy layers or p-SAF structures. Example articles and techniques may be usable for storage and logic devices.

公开(公告)号：US10454592B2

公开(公告)日：2019-10-22

申请号：US15972357

申请日：2018-05-07

Applicant: Regents of the University of Minnesota

Inventor： Mo Li ,  Jian-Ping Wang

IPC: H04B10/532 ,  H04B10/80 ,  H04B10/67

Abstract: Techniques are described for data transfer in spin-based systems where digital bit values are represented by magnetization states of magnetoresistive devices rather than voltages or currents. For data transmission, a spin-based signal is converted to an optical signal and transmitted via an optical transport. For data reception, the optical signal is received via the optical transport and converted back to a spin-based signal. Such data transfer may not require an intervening conversion of the spin-based signal to charge-based signal that relies on voltages or currents to represent digital bit values. In addition, techniques are described to use magnetoresistive devices to control the amount of current or voltage that is delivered, where the magnetization state of the magnetoresistive device is set by an optical signal.

公开(公告)号：US20180203077A1

公开(公告)日：2018-07-19

申请号：US15918942

申请日：2018-03-12

Applicant: Regents of the University of Minnesota

Inventor： Jian-Ping Wang ,  Angeline Klemm Smith ,  Mahdi Jamali ,  Zhengyang Zhao

IPC: G01R33/07 ,  G01R33/12

CPC classification number: G01R33/075 ,  G01R33/077 ,  G01R33/1284

Abstract: An article may include a substantially perpendicularly magnetized free layer having a first magnetic orientation in the absence of an applied magnetic field. The article may also include a spin Hall channel layer configured to conduct a spin current configured to subject the perpendicularly magnetized free layer to a magnetic switching torque and a substantially in-plane magnetized bias layer configured to bias the substantially perpendicularly magnetized free layer to a second magnetic orientation. The second magnetic orientation is different than the first magnetic orientation and is out of a plane of the substantially perpendicularly magnetized free layer.

公开(公告)号：US09721767B2

公开(公告)日：2017-08-01

申请号：US14422262

申请日：2013-08-21

Applicant: Regents of the University of Minnesota

Inventor： Jian-Ping Wang ,  Hao Wang ,  Haibao Zhao

IPC: H01J37/32 ,  C23C16/44 ,  G11B5/855

CPC classification number: H01J37/32899 ,  C23C16/44 ,  G11B5/855

Abstract: In some examples, a method comprising depositing a functional layer (e.g., a magnetic layer) over a substrate; depositing a granular layer over the functional layer, the granular layer including a first material defining a plurality of grains separated by a second material defining grain boundaries of the plurality of grains; removing the second material from the granular layer such that the plurality of grains of the granular layer define a hard mask layer on the functional layer; and removing portions of the functional layer not masked by the hard mask layer, wherein the depositing of the functional layer, the depositing of the granular layer, removing the second material, and removing the portions of the functional layer are performed in a vacuum environment.

公开(公告)号：US09715957B2

公开(公告)日：2017-07-25

申请号：US14766101

申请日：2014-02-06

Applicant: Regents of the University of Minnesota

Inventor： Jian-Ping Wang ,  Yanfeng Jiang

IPC: H01F1/10 ,  H01F1/08 ,  H01F1/055 ,  H01F1/147 ,  H01F1/34 ,  H01F41/02 ,  C22C38/00 ,  B22F7/08 ,  C23C8/26 ,  C23C8/80 ,  C23C14/48 ,  C22C29/16 ,  B22D11/00 ,  B22D11/06 ,  H01F1/057

CPC classification number: H01F1/10 ,  B22D11/001 ,  B22D11/0622 ,  B22F7/08 ,  C22C29/16 ,  C22C38/001 ,  C22C2202/02 ,  C23C8/26 ,  C23C8/80 ,  C23C14/48 ,  H01F1/055 ,  H01F1/0579 ,  H01F1/086 ,  H01F1/147 ,  H01F1/34 ,  H01F41/0253

Abstract: A bulk permanent magnetic material may include between about 5 volume percent and about 40 volume percent Fe16N2 phase domains, a plurality of nonmagnetic atoms or molecules forming domain wall pinning sites, and a balance soft magnetic material, wherein at least some of the soft magnetic material is magnetically coupled to the Fe16N2 phase domains via exchange spring coupling. In some examples, a bulk permanent magnetic material may be formed by implanting N+ ions in an iron workpiece using ion implantation to form an iron nitride workpiece, pre-annealing the iron nitride workpiece to attach the iron nitride workpiece to a substrate, and post-annealing the iron nitride workpiece to form Fe16N2 phase domains within the iron nitride workpiece.

公开(公告)号：US20170082697A1

公开(公告)日：2017-03-23

申请号：US14946069

申请日：2015-11-19

Applicant: Regents of the University of Minnesota

Inventor： Jian-Ping Wang ,  Angeline Klemm Smith ,  Mahdi Jamali ,  Zhengyang Zhao

IPC: G01R33/07

CPC classification number: G01R33/075 ,  G01R33/077 ,  G01R33/1284 ,  H01L43/04 ,  H01L43/06

Abstract: An article may include a substantially perpendicularly magnetized free layer having a first magnetic orientation in the absence of an applied magnetic field. The article may also include a spin Hall channel layer configured to conduct a spin current configured to subject the perpendicularly magnetized free layer to a magnetic switching torque and a substantially in-plane magnetized bias layer configured to bias the substantially perpendicularly magnetized free layer to a second magnetic orientation. The second magnetic orientation is different than the first magnetic orientation and is out of a plane of the substantially perpendicularly magnetized free layer.

公开(公告)号：US09597290B2

公开(公告)日：2017-03-21

申请号：US14826684

申请日：2015-08-14

Applicant: Regents of the University of Minnesota

Inventor： Jian-Ping Wang ,  Claire Hovland ,  Timothy Bloomquist ,  Jing Ying

IPC: A61K9/14 ,  A61K47/02 ,  B22F9/12 ,  C23C14/35 ,  H01J37/34 ,  B22F9/04 ,  B01J2/02 ,  B22F1/00 ,  B01J2/04

CPC classification number: A61K9/14 ,  A61K47/02 ,  B01J2/02 ,  B01J2/04 ,  B22F1/0062 ,  B22F9/04 ,  B22F9/12 ,  B22F2202/05 ,  B22F2998/10 ,  B22F2999/00 ,  C22C2202/02 ,  C23C14/35 ,  H01J37/34 ,  B22F3/003

Abstract: Particle functionalization systems including one or more of: a target of a material; an energetic ion and/or electron source providing accelerated ions and electrons to the target; a potential that is applied to at least the target and that causes ions and/or electrons from the ionized gas to impact a surface of the target and release atoms of the material; at least one magnet providing a magnetic field that controls movement of the ions and electrons and nucleation, formation and growth of particles from the released atoms; and a particle collection device that collects particles, the collection device comprising a substrate and a polymeric functionalization coating disposed on the substrate, wherein particles impinge upon and form bonds with molecules of the functionalization coating. Methods of preparing functionalized particles, functionalized particle compositions, and kits including functionalized particles are also described.